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dc.cpp

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00001 /* $Id: dc.cpp,v 1.115 2001/12/30 10:47:43 sandervl Exp $ */
00002 
00003 /*
00004  * DC functions for USER32
00005  *
00006  * Project Odin Software License can be found in LICENSE.TXT
00007  *
00008  */
00009 
00010 /*****************************************************************************
00011  * Includes                                                                  *
00012  *****************************************************************************/
00013 
00014 #include <odin.h>
00015 
00016 #define INCL_WIN
00017 #define INCL_GPI
00018 #define INCL_GREALL
00019 #define INCL_DEV
00020 #include <os2wrap.h>
00021 //#include <pmddi.h>
00022 #include <stdlib.h>
00023 
00024 #include <string.h>
00025 #include <win32type.h>
00026 #include <win32api.h>
00027 #include <winuser32.h>
00028 #include <winconst.h>
00029 #include <misc.h>
00030 #include <win32wbase.h>
00031 #include <math.h>
00032 #include <limits.h>
00033 #include "oslibwin.h"
00034 #include "oslibmsg.h"
00035 #include <dcdata.h>
00036 #include <codepage.h>
00037 #include <wingdi32.h>
00038 #include <stats.h>
00039 
00040 #define INCLUDED_BY_DC
00041 #include "dc.h"
00042 
00043 #define DBG_LOCALLOG    DBG_dc
00044 #include "dbglocal.h"
00045 
00046 #ifndef DEVESC_SETPS
00047   #define DEVESC_SETPS  49149L
00048 #endif
00049 
00050 #define FLOAT_TO_FIXED(x) ((FIXED) ((x) * 65536.0))
00051 #define MICRO_HPS_TO_HDC(x) ((x) & 0xFFFFFFFE)
00052 
00053 #define PMRECT_FROM_WINRECT( pmRect, winRect )  \
00054 {                                               \
00055    (pmRect).xLeft   = (winRect).left;           \
00056    (pmRect).yBottom = (winRect).bottom;         \
00057    (pmRect).xRight  = (winRect).right;          \
00058    (pmRect).yTop    = (winRect).top;            \
00059 }
00060 
00061 #define WINRECT_FROM_PMRECT( winRect, pmRect )  \
00062 {                                               \
00063    (winRect).left   = (pmRect).xLeft;           \
00064    (winRect).top    = (pmRect).yTop;            \
00065    (winRect).right  = (pmRect).xRight;          \
00066    (winRect).bottom = (pmRect).yBottom;         \
00067 }
00068 
00069 #define MEM_HPS_MAX 768
00070 
00071 const XFORM_W XFORMIdentity = { 1.0, 0.0, 0.0, 1.0, 0, 0 };
00072 const MATRIXLF matrixlfIdentity = { 0x10000, 0, 0, 0, 0x10000, 0, 0, 0, 0};
00073 
00074 BOOL setPageXForm(Win32BaseWindow *wnd, pDCData pHps);
00075 BOOL changePageXForm(Win32BaseWindow *wnd, pDCData pHps, PPOINTL pValue, int x, int y, PPOINTL pPrev);
00076 LONG clientHeight(Win32BaseWindow *wnd, HWND hwnd, pDCData pHps);
00077 
00078 #ifdef DEBUG
00079 #define dprintfRegion(a,b,c) if(DbgEnabledLvl2USER32[DBG_LOCALLOG] == 1) dprintfRegion1(a,b,c)
00080 //#define dprintfRegion(a,b,c) dprintfRegion1(a,b,c)
00081 
00082 void dprintfRegion1(HPS hps, HWND hWnd, HRGN hrgnClip)
00083 {
00084  RGNRECT rgnRect = {0, 16, 0, RECTDIR_LFRT_TOPBOT};
00085  RECTL   rectRegion[16];
00086  APIRET  rc;
00087 
00088    dprintf(("dprintfRegion %x %x", hWnd, hps));
00089    rc = GpiQueryRegionRects(hps, hrgnClip, NULL, &rgnRect, &rectRegion[0]);
00090    for(int i=0;i<rgnRect.crcReturned;i++) {
00091         dprintf(("(%d,%d)(%d,%d)", rectRegion[i].xLeft, rectRegion[i].yBottom, rectRegion[i].xRight, rectRegion[i].yTop));
00092    }
00093 }
00094 #else
00095 #define dprintfRegion(a,b,c)
00096 #endif
00097 
00098 //******************************************************************************
00099 //******************************************************************************
00100 void WIN32API TestWideLine (pDCData pHps)
00101 {
00102    const LOGPEN_W *pLogPen;
00103 
00104    pHps->isWideLine = FALSE;
00105    pLogPen = pHps->penIsExtPen ?
00106        &(pHps->lastPenObject->ExtPen.logpen) :
00107        &(pHps->lastPenObject->Pen.logpen);
00108 
00109    if (((pLogPen->lopnStyle & PS_STYLE_MASK_W) != PS_NULL_W) &&
00110         (pLogPen->lopnWidth.x > 0))
00111    {
00112       POINTL aptl[2] = { 0, 0, pLogPen->lopnWidth.x, pLogPen->lopnWidth.x };
00113 
00114       GpiConvert(pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, aptl);
00115 
00116       ULONG dx = abs(aptl[0].x - aptl[1].x);
00117       ULONG dy = abs(aptl[0].y - aptl[1].y);
00118 
00119       pHps->isWideLine = (dx > 1) || (dy > 1);
00120    }
00121 }
00122 //******************************************************************************
00123 //******************************************************************************
00124 void WIN32API Calculate1PixelDelta(pDCData pHps)
00125 {
00126    POINTL aptl[2] = {0, 0, 1, 1};
00127 
00128    GpiConvert(pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, aptl);
00129    pHps->worldYDeltaFor1Pixel = (int)(aptl[1].y - aptl[0].y);
00130    pHps->worldXDeltaFor1Pixel = (int)(aptl[1].x - aptl[0].x);                   // 171182
00131 }
00132 //******************************************************************************
00133 //******************************************************************************
00134 int setMapMode(Win32BaseWindow *wnd, pDCData pHps, int mode)
00135 {
00136    int    prevMode = 0;
00137    ULONG  flOptions;
00138 
00139    switch (mode)
00140    {
00141       case MM_HIENGLISH_W  : flOptions = PU_HIENGLISH; break;
00142       case MM_LOENGLISH_W  : flOptions = PU_LOENGLISH; break;
00143       case MM_HIMETRIC_W   : flOptions = PU_HIMETRIC ; break;
00144       case MM_LOMETRIC_W   : flOptions = PU_LOMETRIC ; break;
00145       case MM_TEXT_W       : flOptions = PU_PELS     ; break;
00146       case MM_TWIPS_W      : flOptions = PU_TWIPS    ; break;
00147       case MM_ANISOTROPIC_W: flOptions = PU_PELS     ; break;
00148       case MM_ISOTROPIC_W  : flOptions = PU_LOMETRIC ; break;
00149       default:
00150          SetLastError(ERROR_INVALID_PARAMETER_W);
00151          return FALSE;
00152    }
00153 
00154    prevMode = pHps->MapMode;  /* store previous mode */
00155    pHps->MapMode = mode;
00156 
00157    if (mode == MM_TEXT_W)
00158    {
00159       pHps->viewportXExt =
00160       pHps->viewportYExt = 1.0;
00161       pHps->windowExt.cx =
00162       pHps->windowExt.cy = 1;
00163    }
00164    else if (mode != MM_ANISOTROPIC_W)
00165    {
00166       RECTL rectl;
00167       SIZEL sizel;
00168       ULONG data[3];
00169 
00170       data[0] = flOptions;
00171       data[1] = data[2] = 0;
00172 
00173       if (DevEscape(pHps->hdc ? pHps->hdc : pHps->hps, DEVESC_SETPS, 12, (PBYTE)data, 0, 0) == DEVESC_ERROR)
00174       {
00175          SetLastError(ERROR_INVALID_PARAMETER_W);
00176          return 0;
00177       }
00178 
00179       GpiQueryPageViewport(pHps->hps, &rectl);
00180       pHps->viewportXExt = (double)rectl.xRight;
00181       pHps->viewportYExt = -(double)rectl.yTop;
00182 
00183       GreGetPageUnits(pHps->hdc? pHps->hdc : pHps->hps, &sizel);
00184       pHps->windowExt.cx = sizel.cx;
00185       pHps->windowExt.cy = sizel.cy;
00186 
00187       data[0] = PU_PELS;
00188       DevEscape(pHps->hdc ? pHps->hdc : pHps->hps, DEVESC_SETPS, 12, (PBYTE)data, 0, 0);
00189    }
00190 
00191    if (((prevMode != MM_ISOTROPIC_W) && (prevMode != MM_ANISOTROPIC_W)) &&
00192        ((mode == MM_ISOTROPIC_W) || (mode == MM_ANISOTROPIC_W)))
00193    {
00194       if (pHps->lWndXExtSave && pHps->lWndYExtSave)
00195       {
00196          changePageXForm (wnd, pHps, (PPOINTL)&pHps->windowExt,
00197                           pHps->lWndXExtSave, pHps->lWndYExtSave, NULL );
00198          pHps->lWndXExtSave = pHps->lWndYExtSave = 0;
00199       }
00200       if (pHps->lVwpXExtSave && pHps->lVwpYExtSave)
00201       {
00202          changePageXForm (wnd, pHps, NULL,
00203                           pHps->lVwpXExtSave, pHps->lVwpYExtSave, NULL );
00204          pHps->lVwpXExtSave = pHps->lVwpYExtSave = 0;
00205       }
00206    }
00207 
00208    setPageXForm(wnd, pHps);
00209 
00210    return prevMode;
00211 }
00212 //******************************************************************************
00213 //******************************************************************************
00214 BOOL setPageXForm(Win32BaseWindow *wnd, pDCData pHps)
00215 {
00216    MATRIXLF mlf;
00217    BOOL rc = TRUE;
00218 
00219    pHps->height = clientHeight(wnd, 0, pHps) - 1;
00220 
00221    double xScale =  pHps->viewportXExt / (double)pHps->windowExt.cx;
00222    double yScale =  pHps->viewportYExt / (double)pHps->windowExt.cy;
00223 
00224 #if 0
00225    mlf.fxM11 = FLOAT_TO_FIXED(1.0);
00226    mlf.fxM12 = 0;
00227    mlf.lM13  = 0;
00228    mlf.fxM21 = 0;
00229    mlf.fxM22 = FLOAT_TO_FIXED(1.0);
00230    mlf.lM23  = 0;
00231    mlf.lM31  = pHps->viewportOrg.x - (LONG)(pHps->windowOrg.x * xScale);
00232    mlf.lM32  = pHps->viewportOrg.y - (LONG)(pHps->windowOrg.y * yScale);
00233    mlf.lM33  = 1;
00234 
00235 //testestest
00236    if(wnd && wnd->getWindowWidth() && wnd->getWindowHeight())
00237    {
00238         RECTL recttmp, rectviewold;
00239 
00240         rc = GpiQueryPageViewport(pHps->hps, &rectviewold);
00241         if(rc == 0) {
00242             dprintf(("WARNING: GpiQueryPageViewport returned FALSE!!"));
00243         }
00244         recttmp.xLeft   = 0;
00245         recttmp.xRight  = ((double)GetScreenWidth() / xScale);
00246         recttmp.yBottom = 0;
00247         recttmp.yTop    = ((double)GetScreenHeight() / yScale);
00248 
00249         if(recttmp.yTop != rectviewold.yTop ||
00250            recttmp.xRight != rectviewold.xRight)
00251         {
00252             if(pHps->viewportYExt > pHps->windowExt.cy) {//scaling up means we have to invert the y values
00253                 recttmp.yBottom = GetScreenHeight() - recttmp.yTop;
00254                 recttmp.yTop    = GetScreenHeight();
00255             }
00256             dprintf(("GpiSetPageViewport %x (%d,%d)(%d,%d) %f %f", pHps->hps, recttmp.xLeft, recttmp.yBottom, recttmp.xRight, recttmp.yTop, xScale, yScale));
00257             rc = GpiSetPageViewport(pHps->hps, &recttmp);
00258             if(rc == 0) {
00259                 dprintf(("WARNING: GpiSetPageViewport returned FALSE!!"));
00260             }
00261         }
00262    }
00263 //testestest
00264 
00265 #else
00266    mlf.fxM11 = FLOAT_TO_FIXED(xScale);
00267    mlf.fxM12 = 0;
00268    mlf.lM13  = 0;
00269    mlf.fxM21 = 0;
00270    mlf.fxM22 = FLOAT_TO_FIXED(yScale);
00271    mlf.lM23  = 0;
00272    mlf.lM31  = pHps->viewportOrg.x - (LONG)(pHps->windowOrg.x * xScale);
00273    mlf.lM32  = pHps->viewportOrg.y - (LONG)(pHps->windowOrg.y * yScale);
00274    mlf.lM33  = 1;
00275 #endif
00276 
00277    pHps->isLeftLeft = mlf.fxM11 >= 0;
00278    pHps->isTopTop = mlf.fxM22 >= 0;
00279 
00280    BOOL bEnableYInversion = FALSE;
00281    if ((mlf.fxM22 > 0) ||
00282         ((pHps->graphicsMode == GM_ADVANCED_W) &&
00283           ((pHps->MapMode == MM_ANISOTROPIC_W) ||
00284            (pHps->MapMode == MM_ISOTROPIC_W))))
00285    {
00286       bEnableYInversion = TRUE;
00287    }
00288    else
00289    {
00290       bEnableYInversion = FALSE;
00291       mlf.lM32 = pHps->HPStoHDCInversionHeight + pHps->height - mlf.lM32;
00292       mlf.fxM22 = -mlf.fxM22;
00293    }
00294 
00295    if (!pHps->isMetaPS)
00296 //   if ((!pHps->isMetaPS) ||
00297 //      (pHps->pMetaFileObject && pHps->pMetaFileObject->isEnhanced()))
00298       rc = GpiSetDefaultViewMatrix(pHps->hps, 8, &mlf, TRANSFORM_REPLACE);
00299    if(rc == 0) {
00300       dprintf(("WARNING: GpiSetDefaultViewMatrix returned FALSE!!"));
00301    }
00302 #ifdef INVERT
00303    if (bEnableYInversion)
00304       GpiEnableYInversion(pHps->hps, pHps->height + pHps->HPStoHDCInversionHeight);
00305    else
00306       GpiEnableYInversion(pHps->hps, 0);
00307 #else
00308    pHps->yInvert = 0;
00309    if(bEnableYInversion)
00310    {
00311       pHps->yInvert4Enable = pHps->height + pHps->HPStoHDCInversionHeight;
00312       if(pHps->isPrinter)
00313       {
00314          pHps->yInvert = pHps->yInvert4Enable
00315                        * (pHps->windowExt.cy / (double)pHps->viewportYExt);
00316       } else {
00317          pHps->yInvert = pHps->yInvert4Enable;
00318       }
00319    }
00320 #endif
00321 
00322    TestWideLine(pHps);
00323    Calculate1PixelDelta(pHps);
00324    return rc;
00325 }
00326 //******************************************************************************
00327 //******************************************************************************
00328 BOOL changePageXForm(Win32BaseWindow *wnd, pDCData pHps, PPOINTL pValue, int x, int y, PPOINTL pPrev)
00329 {
00330    BOOL result = FALSE;
00331 
00332    if (pValue)
00333    {
00334       if (pPrev)
00335          *pPrev = *pValue;
00336 
00337       if ((pValue->x == x) && (pValue->y == y)) {
00338          return TRUE;
00339       }
00340       pValue->x = x;
00341       pValue->y = y;
00342    }
00343    else
00344    {
00345       if (pPrev)
00346       {
00347          pPrev->x = (int)pHps->viewportXExt;
00348          pPrev->y = (int)pHps->viewportYExt;
00349       }
00350       pHps->viewportXExt = (double)x;
00351       pHps->viewportYExt = (double)y;
00352    }
00353 
00354    if (pHps->MapMode == MM_ISOTROPIC_W)
00355    {
00356       double xExt = fabs(pHps->viewportXExt);
00357       double yExt = fabs(pHps->viewportYExt);
00358       double sf = fabs((double)pHps->windowExt.cx / pHps->windowExt.cy);
00359 
00360       if (xExt > (yExt * sf))
00361       {
00362          xExt = yExt * sf;
00363 
00364          if ((double)LONG_MAX <= xExt) return (result);
00365 
00366          if (pHps->viewportXExt < 0.0)
00367             pHps->viewportXExt = -xExt;
00368          else
00369             pHps->viewportXExt = xExt;
00370       }
00371       else
00372       {
00373          yExt = xExt / sf;
00374 
00375          if ((double)LONG_MAX <= yExt) return (result);
00376 
00377          if (pHps->viewportYExt < 0.0)
00378             pHps->viewportYExt = -yExt;
00379          else
00380             pHps->viewportYExt = yExt;
00381       }
00382    }
00383    result = setPageXForm(wnd, pHps);
00384 
00385    return (result);
00386 }
00387 //******************************************************************************
00388 //******************************************************************************
00389 VOID removeClientArea(Win32BaseWindow *window, pDCData pHps)
00390 {
00391    pHps->isClient = FALSE;
00392    pHps->isClientArea = FALSE;
00393 }
00394 //******************************************************************************
00395 //******************************************************************************
00396 void selectClientArea(Win32BaseWindow *window, pDCData pHps)
00397 {
00398    pHps->isClient = TRUE;
00399    pHps->isClientArea = TRUE;
00400 }
00401 //******************************************************************************
00402 //******************************************************************************
00403 void selectClientArea(Win32BaseWindow *wnd, HDC hdc)
00404 {
00405   pDCData pHps = (pDCData)GpiQueryDCData (wnd->getOwnDC());
00406 
00407   if (pHps != NULLHANDLE)
00408       selectClientArea(wnd, pHps);
00409 }
00410 //******************************************************************************
00411 //******************************************************************************
00412 LONG clientHeight(Win32BaseWindow *wnd, HWND hwnd, pDCData pHps)
00413 {
00414     if ((hwnd == 0) && (pHps != 0))
00415         hwnd = pHps->hwnd;
00416 
00417     if ((hwnd != 0) || (pHps == 0))
00418     {
00419         if(wnd) {
00420             if(pHps && !pHps->isClientArea) {
00421                 return (wnd->getWindowHeight());
00422             }
00423             else return (wnd->getClientHeight());
00424         }
00425         else return OSLibQueryScreenHeight();
00426     }
00427     else if (pHps->bitmapHandle)
00428     {
00429         return pHps->bitmapHeight;
00430     }
00431     else if (pHps->isMetaPS)
00432     {
00433         return 0;
00434     }
00435     else if (pHps->isPrinter)
00436     {
00437         return pHps->printPageHeight;
00438     }
00439     else
00440     {
00441         return MEM_HPS_MAX;
00442     }
00443 }
00444 //******************************************************************************
00445 //******************************************************************************
00446 BOOL WIN32API changePageXForm(pDCData pHps, PPOINTL pValue, int x, int y, PPOINTL pPrev)
00447 {
00448  Win32BaseWindow *wnd;
00449 
00450    if(pHps->isClient) {
00451         wnd = Win32BaseWindow::GetWindowFromOS2Handle(pHps->hwnd);
00452    }
00453    else wnd = Win32BaseWindow::GetWindowFromOS2FrameHandle(pHps->hwnd);
00454    BOOL ret = changePageXForm(wnd, pHps, pValue, x, y, pPrev);
00455    if(wnd) RELEASE_WNDOBJ(wnd);
00456    return ret;
00457 }
00458 //******************************************************************************
00459 //******************************************************************************
00460 BOOL WIN32API setPageXForm(pDCData pHps)
00461 {
00462  Win32BaseWindow *wnd;
00463 
00464    if(pHps->isClient) {
00465         wnd = Win32BaseWindow::GetWindowFromOS2Handle(pHps->hwnd);
00466    }
00467    else wnd = Win32BaseWindow::GetWindowFromOS2FrameHandle(pHps->hwnd);
00468    BOOL ret = setPageXForm(wnd, pHps);
00469    if(wnd) RELEASE_WNDOBJ(wnd);
00470    return ret;
00471 }
00472 //******************************************************************************
00473 //******************************************************************************
00474 VOID WIN32API removeClientArea(pDCData pHps)
00475 {
00476  Win32BaseWindow *wnd;
00477 
00478    if(pHps->isClient) {
00479         wnd = Win32BaseWindow::GetWindowFromOS2Handle(pHps->hwnd);
00480    }
00481    else wnd = Win32BaseWindow::GetWindowFromOS2FrameHandle(pHps->hwnd);
00482    if(wnd) {
00483       removeClientArea(wnd, pHps);
00484       RELEASE_WNDOBJ(wnd);
00485    }
00486 }
00487 //******************************************************************************
00488 //******************************************************************************
00489 VOID WIN32API selectClientArea(pDCData pHps)
00490 {
00491  Win32BaseWindow *wnd;
00492 
00493    if(pHps->isClient) {
00494         wnd = Win32BaseWindow::GetWindowFromOS2Handle(pHps->hwnd);
00495    }
00496    else wnd = Win32BaseWindow::GetWindowFromOS2FrameHandle(pHps->hwnd);
00497    if(wnd) {
00498       selectClientArea(wnd, pHps);
00499       RELEASE_WNDOBJ(wnd);
00500    }
00501 }
00502 //******************************************************************************
00503 //******************************************************************************
00504 VOID WIN32API checkOrigin(pDCData pHps)
00505 {
00506  Win32BaseWindow *wnd;
00507 
00508    if(pHps->isClient) {
00509         wnd = Win32BaseWindow::GetWindowFromOS2Handle(pHps->hwnd);
00510    }
00511    else wnd = Win32BaseWindow::GetWindowFromOS2FrameHandle(pHps->hwnd);
00512    if(wnd) {
00513       if(pHps->isClient)
00514           selectClientArea(wnd, pHps);
00515       RELEASE_WNDOBJ(wnd);
00516    }
00517 }
00518 //******************************************************************************
00519 //******************************************************************************
00520 LONG WIN32API clientHeight(HWND hwnd, pDCData pHps)
00521 {
00522  Win32BaseWindow *wnd;
00523 
00524    if(!pHps) {
00525         wnd = Win32BaseWindow::GetWindowFromOS2Handle(hwnd);
00526    }
00527    else 
00528    if(pHps->isClient) {
00529         wnd = Win32BaseWindow::GetWindowFromOS2Handle(pHps->hwnd);
00530    }
00531    else wnd = Win32BaseWindow::GetWindowFromOS2FrameHandle(pHps->hwnd);
00532    LONG ret = clientHeight(wnd, hwnd, pHps);
00533    if(wnd) RELEASE_WNDOBJ(wnd);
00534    return ret;
00535 }
00536 //******************************************************************************
00537 //******************************************************************************
00538 int WIN32API setMapModeDC(pDCData pHps, int mode)
00539 {
00540  Win32BaseWindow *wnd;
00541 
00542    if(pHps->isClient) {
00543         wnd = Win32BaseWindow::GetWindowFromOS2Handle(pHps->hwnd);
00544    }
00545    else wnd = Win32BaseWindow::GetWindowFromOS2FrameHandle(pHps->hwnd);
00546    int ret = setMapMode(wnd, pHps, mode);
00547    if(wnd) RELEASE_WNDOBJ(wnd);
00548    return ret;
00549 }
00550 //******************************************************************************
00551 //******************************************************************************
00552 BOOL isYup (pDCData pHps)
00553 {
00554    if (((pHps->windowExt.cy < 0) && (pHps->viewportYExt > 0.0)) ||
00555        ((pHps->windowExt.cy > 0) && (pHps->viewportYExt < 0.0)))
00556    {
00557       if ((pHps->graphicsMode == GM_COMPATIBLE_W) ||
00558           ((pHps->graphicsMode == GM_ADVANCED_W) && (pHps->xform.eM22 >= 0.0)))
00559          return TRUE;
00560    }
00561    else
00562    {
00563       if ((pHps->graphicsMode == GM_ADVANCED_W) && (pHps->xform.eM22 < 0.0))
00564          return TRUE;
00565    }
00566    return FALSE;
00567 }
00568 //******************************************************************************
00569 //******************************************************************************
00570 INT revertDy (Win32BaseWindow *wnd, INT dy)
00571 {
00572    //SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
00573 //   if (wnd->isOwnDC() && wnd->getOwnDC())
00574    if (wnd->isOwnDC())
00575    {
00576       pDCData pHps = (pDCData)GpiQueryDCData (wnd->getOwnDC());
00577 
00578       if (pHps != NULLHANDLE)
00579          if (!isYup (pHps))
00580             dy = -dy;
00581    }
00582    else
00583    {
00584       dy = -dy;
00585    }
00586    return (dy);
00587 }
00588 //******************************************************************************
00589 //******************************************************************************
00590 HDC sendEraseBkgnd (Win32BaseWindow *wnd)
00591 {
00592    BOOL  erased;
00593    HWND  hwnd;
00594    HDC   hdc;
00595    HPS   hps;
00596    HRGN  hrgnUpdate, hrgnOld, hrgnClip, hrgnCombined;
00597    RECTL rectl = { 1, 1, 2, 2 };
00598 
00599    hwnd = wnd->getOS2WindowHandle();
00600    hps = WinGetPS(hwnd);
00601 
00602    hrgnUpdate = GpiCreateRegion (hps, 1, &rectl);
00603    WinQueryUpdateRegion (hwnd, hrgnUpdate);
00604    hrgnClip = GpiQueryClipRegion (hps);
00605 
00606    if (hrgnClip == NULLHANDLE)
00607    {
00608       GpiSetClipRegion (hps, hrgnUpdate, &hrgnOld);
00609    }
00610    else
00611    {
00612       hrgnCombined = GpiCreateRegion (hps, 1, &rectl);
00613       GpiCombineRegion (hps, hrgnCombined, hrgnClip, hrgnUpdate, CRGN_AND);
00614       GpiSetClipRegion (hps, hrgnCombined, &hrgnOld);
00615       GpiDestroyRegion (hps, hrgnUpdate);
00616       GpiDestroyRegion (hps, hrgnClip);
00617    }
00618    if (hrgnOld != NULLHANDLE)
00619       GpiDestroyRegion (hps, hrgnOld);
00620 
00621    hdc = HPSToHDC (hwnd, hps, NULL, NULL);
00622 
00623    erased = wnd->MsgEraseBackGround (hdc);
00624 
00625    DeleteHDC (hdc);
00626    WinReleasePS (hps);
00627 
00628    return erased;
00629 }
00630 //******************************************************************************
00631 //******************************************************************************
00632 void releaseOwnDC (HDC hps)
00633 {
00634    pDCData pHps = (pDCData)GpiQueryDCData ((HPS)hps);
00635 
00636    dprintf2(("releaseOwnDC %x", hps));
00637 
00638    if (pHps) {
00639       if (pHps->hrgnHDC)
00640          GpiDestroyRegion (pHps->hps, pHps->hrgnHDC);
00641 
00642       GpiSetBitmap (pHps->hps, NULL);
00643       O32_DeleteObject (pHps->nullBitmapHandle);
00644       GpiDestroyPS(pHps->hps);
00645 
00646       if (pHps->hdc)
00647          DevCloseDC(pHps->hdc);
00648    }
00649 }
00650 //******************************************************************************
00651 //******************************************************************************
00652 HDC WIN32API BeginPaint (HWND hWnd, PPAINTSTRUCT_W lpps)
00653 {
00654  HWND     hwnd = hWnd ? hWnd : HWND_DESKTOP;
00655  pDCData  pHps = NULLHANDLE;
00656  HPS      hPS_ownDC = NULLHANDLE, hpsPaint = 0;
00657  RECTL    rectl = {0, 0, 1, 1};
00658  HRGN     hrgnOldClip;
00659  LONG     lComplexity;
00660  RECTL    rectlClient;
00661  RECTL    rectlClip;
00662 
00663     if(lpps == NULL) {
00664         //BeginPaint does NOT change last error in this case
00665         //(verified in NT4, SP6)
00666         dprintf (("USER32: BeginPaint %x NULL PAINTSTRUCT pointer", hWnd));
00667         return 0;
00668     }
00669     memset(lpps, 0, sizeof(*lpps));
00670 
00671     Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
00672     if(!wnd) {
00673         dprintf (("USER32: BeginPaint %x %x: invalid window handle!!", hWnd, lpps));
00674         SetLastError(ERROR_INVALID_WINDOW_HANDLE_W); //(verified in NT4, SP6)
00675         return (HDC)0;
00676     }
00677     HWND hwndClient = wnd->getOS2WindowHandle();
00678 
00679     if(hwnd != HWND_DESKTOP && wnd->isOwnDC())
00680     {
00681         hPS_ownDC = wnd->getOwnDC();
00682         //SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
00683         if(hPS_ownDC) {
00684             pHps = (pDCData)GpiQueryDCData(hPS_ownDC);
00685             if (!pHps)
00686             {
00687                 dprintf (("USER32: BeginPaint %x invalid parameter %x", hWnd, lpps));
00688                 RELEASE_WNDOBJ(wnd);
00689                 SetLastError(ERROR_INVALID_PARAMETER_W);
00690                 return (HDC)NULLHANDLE;
00691             }
00692             hpsPaint = hPS_ownDC;
00693         }
00694     }
00695     if(!hpsPaint) {
00696         hpsPaint = GetDCEx(hwnd, 0, (DCX_CACHE_W|DCX_USESTYLE_W));
00697         pHps = (pDCData)GpiQueryDCData(hpsPaint);
00698         if (!pHps)
00699         {
00700             dprintf (("USER32: BeginPaint %x invalid parameter %x", hWnd, lpps));
00701             RELEASE_WNDOBJ(wnd);
00702             SetLastError(ERROR_INVALID_PARAMETER_W);
00703             return (HDC)NULLHANDLE;
00704         }
00705     }
00706 
00707     if(WinQueryUpdateRect(hwndClient, &rectl) == FALSE)
00708     {
00709         memset(&rectl, 0, sizeof(rectl));
00710         dprintf (("USER32: WARNING: WinQueryUpdateRect failed (error or no update rectangle)!!"));
00711 
00712         HRGN hrgnClip = GpiCreateRegion(pHps->hps, 1, &rectl);
00713         GpiSetClipRegion(pHps->hps, hrgnClip, &hrgnOldClip);
00714 
00715         selectClientArea(wnd, pHps);
00716 
00717         //save old clip region (restored for CS_OWNDC windows in EndPaint)
00718         wnd->SetClipRegion(hrgnOldClip);
00719         lComplexity = RGN_NULL;
00720     }
00721     else {
00722         rectlClip.yBottom = rectlClip.xLeft = 0;
00723         rectlClip.yTop = rectlClip.xRight = 1;
00724 
00725         //Query update region
00726         HRGN hrgnClip = GpiCreateRegion(pHps->hps, 1, &rectlClip);
00727         WinQueryUpdateRegion(hwndClient, hrgnClip);
00728         WinValidateRegion(hwndClient, hrgnClip, FALSE);
00729 
00730         dprintfRegion(pHps->hps, wnd->getWindowHandle(), hrgnClip);
00731 
00732 #ifdef DEBUG
00733         //Note: GpiQueryClipBox returns logical points
00734         lComplexity = GpiQueryClipBox(pHps->hps, &rectlClip);
00735         dprintf(("ClipBox (%d): (%d,%d)(%d,%d)", lComplexity, rectlClip.xLeft, rectlClip.yBottom, rectlClip.xRight, rectlClip.yTop));
00736 #endif
00737 
00738         //set clip region
00739         lComplexity = GpiSetClipRegion(pHps->hps, hrgnClip, &hrgnOldClip);
00740 
00741         if(lComplexity == RGN_NULL) {
00742             dprintf (("BeginPaint %x: EMPTY update rectangle (show=%d/%d vis=%d/%d", hWnd,  WinIsWindowVisible(wnd->getOS2FrameWindowHandle()), WinIsWindowVisible(wnd->getOS2WindowHandle()),  WinIsWindowShowing(wnd->getOS2FrameWindowHandle()), WinIsWindowShowing(wnd->getOS2WindowHandle())));
00743         }
00744         else dprintf (("BeginPaint %x: (show=%d/%d vis=%d/%d)", hWnd,  WinIsWindowVisible(wnd->getOS2FrameWindowHandle()), WinIsWindowVisible(wnd->getOS2WindowHandle()),  WinIsWindowShowing(wnd->getOS2FrameWindowHandle()), WinIsWindowShowing(wnd->getOS2WindowHandle())));
00745 
00746         selectClientArea(wnd, pHps);
00747 
00748 #ifdef DEBUG
00749         //Note: GpiQueryClipBox returns logical points
00750         GpiQueryClipBox(pHps->hps, &rectlClip);
00751         dprintf(("ClipBox (%d): (%d,%d)(%d,%d)", lComplexity, rectlClip.xLeft, rectlClip.yBottom, rectlClip.xRight, rectlClip.yTop));
00752 #endif
00753         //save old clip region (restored for CS_OWNDC windows in EndPaint)
00754         wnd->SetClipRegion(hrgnOldClip);
00755     }
00756 
00757     if(hPS_ownDC == 0)
00758         setMapMode (wnd, pHps, MM_TEXT_W);
00759     else
00760         setPageXForm(wnd, pHps);
00761 
00762     pHps->hdcType = TYPE_3;
00763 
00764     HideCaret(hwnd);
00765     WinShowTrackRect(wnd->getOS2WindowHandle(), FALSE);
00766 
00767     if((wnd->needsEraseBkgnd() || wnd->IsVisibleRegionChanged()) && lComplexity != RGN_NULL) {
00768         wnd->setEraseBkgnd(FALSE);
00769         wnd->SetVisibleRegionChanged(FALSE);
00770         lpps->fErase = (wnd->MsgEraseBackGround(pHps->hps) == 0);
00771     }
00772     else lpps->fErase = TRUE;
00773 
00774     lpps->hdc    = (HDC)pHps->hps;
00775 
00776     if(lComplexity != RGN_NULL) {
00777         long height  = wnd->getClientHeight();
00778         lpps->rcPaint.top    = height - rectl.yTop;
00779         lpps->rcPaint.left   = rectl.xLeft;
00780         lpps->rcPaint.bottom = height - rectl.yBottom;
00781         lpps->rcPaint.right  = rectl.xRight;
00782         //BeginPaint must return logical points instead of device points.
00783         //(not the same if e.g. app changes page viewport)
00784         DPtoLP(lpps->hdc, (LPPOINT)&lpps->rcPaint, 2);
00785     }
00786     else {
00787         lpps->rcPaint.bottom = lpps->rcPaint.top = 0;
00788         lpps->rcPaint.right = lpps->rcPaint.left = 0;
00789     }
00790     RELEASE_WNDOBJ(wnd);
00791 
00792     SetLastError(0);
00793     dprintf(("USER32: BeginPaint %x -> hdc %x (%d,%d)(%d,%d)", hWnd, pHps->hps, lpps->rcPaint.left, lpps->rcPaint.top, lpps->rcPaint.right, lpps->rcPaint.bottom));
00794     return (HDC)pHps->hps;
00795 }
00796 //******************************************************************************
00797 //******************************************************************************
00798 BOOL WIN32API EndPaint (HWND hWnd, const PAINTSTRUCT_W *pPaint)
00799 {
00800   HWND    hwnd = hWnd ? hWnd : HWND_DESKTOP;
00801   HRGN    hrgnOld;
00802   pDCData pHps;
00803 
00804     dprintf (("USER32: EndPaint(%x)", hwnd));
00805 
00806     if (!pPaint || !pPaint->hdc )
00807         return TRUE;
00808 
00809     Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
00810 
00811     if (!wnd) goto exit;
00812 
00813     pHps = (pDCData)GpiQueryDCData((HPS)pPaint->hdc);
00814     if (pHps && (pHps->hdcType == TYPE_3))
00815     {
00816         GpiSetClipRegion(pHps->hps, wnd->GetClipRegion(), &hrgnOld);
00817         wnd->SetClipRegion(0);
00818         if(hrgnOld) {
00819             GpiDestroyRegion(pHps->hps, hrgnOld);
00820         }
00821         pHps->hdcType = TYPE_1; //otherwise Open32's ReleaseDC fails
00822         ReleaseDC(hwnd, pPaint->hdc);
00823     }
00824     else {
00825         dprintf(("EndPaint: wrong hdc %x!!", pPaint->hdc));
00826     }
00827     wnd->setEraseBkgnd(TRUE);
00828     ShowCaret(hwnd);
00829     WinShowTrackRect(wnd->getOS2WindowHandle(), TRUE);
00830 
00831 exit:
00832     if(wnd) RELEASE_WNDOBJ(wnd);
00833     SetLastError(0);
00834     return TRUE;
00835 }
00836 //******************************************************************************
00837 //******************************************************************************
00838 int WIN32API ReleaseDC (HWND hwnd, HDC hdc)
00839 {
00840    BOOL isOwnDC = FALSE;
00841    int rc;
00842 
00843     if (hwnd)
00844     {
00845         Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
00846         if(wnd == NULL) {
00847             dprintf(("ERROR: ReleaseDC %x %x failed", hwnd, hdc));
00848             return 0;
00849         }
00850         isOwnDC = wnd->isOwnDC() && (wnd->getOwnDC() == hdc);
00851         if(!isOwnDC)
00852         {
00853             pDCData  pHps = (pDCData)GpiQueryDCData((HPS)hdc);
00854             if(pHps && pHps->psType == MICRO_CACHED) {
00855                 removeClientArea(wnd, pHps);
00856                 if(pHps->hrgnVis) {
00857                     GreDestroyRegion(pHps->hps, pHps->hrgnVis);
00858                     pHps->hrgnVis = 0;
00859                 }
00860             }
00861             else {
00862                 dprintf(("ERROR: ReleaseDC: pHps == NULL!!"));
00863                 DebugInt3();
00864             }
00865         }
00866         else {
00867             dprintf2(("ReleaseDC: CS_OWNDC, not released"));
00868         }
00869         RELEASE_WNDOBJ(wnd);
00870     }
00871 
00872     if(isOwnDC) {
00873         rc = TRUE;
00874     }
00875     else {
00876         UnselectGDIObjects(hdc);
00877         rc = O32_ReleaseDC (0, hdc);
00878         STATS_ReleaseDC(hwnd, hdc);
00879     }
00880 
00881     dprintf(("ReleaseDC %x %x", hwnd, hdc));
00882     return (rc);
00883 }
00884 //******************************************************************************
00885 // This implementation of GetDCEx supports
00886 // DCX_WINDOW
00887 // DCX_CACHE
00888 // DCX_EXCLUDERGN (complex regions allowed)
00889 // DCX_INTERSECTRGN (complex regions allowed)
00890 // DCX_USESTYLE
00891 // DCX_CLIPSIBLINGS
00892 // DCX_CLIPCHILDREN
00893 // DCX_PARENTCLIP
00894 //
00895 //TODO: WM_SETREDRAW affects drawingAllowed flag!!
00896 //******************************************************************************
00897 HDC WIN32API GetDCEx (HWND hwnd, HRGN hrgn, ULONG flags)
00898 {
00899    Win32BaseWindow *wnd = NULL;
00900    HWND     hWindow;
00901    BOOL     success;
00902    pDCData  pHps = NULL;
00903    HPS      hps  = NULLHANDLE;
00904    BOOL     drawingAllowed = TRUE;
00905    BOOL     isWindowOwnDC;
00906    BOOL     creatingOwnDC = FALSE;
00907    PS_Type  psType;
00908 
00909     if(hwnd == 0) {
00910         dprintf(("error: GetDCEx window %x not found", hwnd));
00911         SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
00912         return 0;
00913     }
00914 
00915     if(hwnd)
00916     {
00917         wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
00918         if(wnd == NULL) {
00919                 dprintf (("ERROR: User32: GetDCEx bad window handle %X!!!!!", hwnd));
00920                 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
00921                 return 0;
00922         }
00923         if(flags & DCX_WINDOW_W) {
00924              hWindow = wnd->getOS2FrameWindowHandle();
00925         }
00926         else hWindow = wnd->getOS2WindowHandle();
00927     }
00928 
00929     isWindowOwnDC = (((hWindow == HWND_DESKTOP) ? FALSE : (wnd->isOwnDC()))
00930                     && !(flags & (DCX_CACHE_W|DCX_WINDOW_W)));
00931 
00932     if(isWindowOwnDC) //own dc always for client area
00933     {
00934         hps = wnd->getOwnDC();
00935         if (hps)
00936         {
00937             pDCData pHps = (pDCData)GpiQueryDCData (hps);
00938             if (!pHps)
00939                 goto error;
00940 
00941             selectClientArea(wnd, pHps);
00942 
00943             //TODO: Is this always necessary??
00944             setPageXForm (wnd, pHps);
00945             pHps->hdcType = TYPE_1;
00946 
00947             //TODO: intersect/exclude clip region?
00948             dprintf (("User32: GetDCEx hwnd %x (%x %x) -> wnd %x hdc %x", hwnd, hrgn, flags, wnd, hps));
00949 
00950             RELEASE_WNDOBJ(wnd);
00951 
00952             STATS_GetDCEx(hwnd, hps, hrgn, flags);
00953 
00954             return (HDC)hps;
00955         }
00956         else creatingOwnDC = TRUE;
00957     }
00958 
00959     if(isWindowOwnDC)
00960     {
00961         SIZEL sizel = {0,0};
00962         hps = GpiCreatePS (WinQueryAnchorBlock (hWindow),
00963                            WinOpenWindowDC (hWindow),
00964                            &sizel, PU_PELS | GPIT_MICRO | GPIA_ASSOC );
00965         psType = MICRO;
00966         // default cp is OS/2 one: set to windows default (ODIN.INI)
00967         GpiSetCp(hps, GetDisplayCodepage());
00968     }
00969     else
00970     {
00971         if (hWindow == HWND_DESKTOP) {
00972             hps = WinGetScreenPS (hWindow);
00973         }
00974         else {
00975             int clipstyle = 0;
00976             int clipwnd   = HWND_TOP;
00977             if(flags & (DCX_USESTYLE_W)) 
00978             {
00979                 int style = wnd->getStyle();
00980                 if(style & WS_CLIPCHILDREN_W) {
00981                     clipstyle |= PSF_CLIPCHILDREN;
00982                 }
00983                 if(style & WS_CLIPSIBLINGS_W) {
00984                     clipstyle |= PSF_CLIPSIBLINGS;
00985                 }
00986                 if(wnd->fHasParentDC()) {
00987                     clipstyle |= PSF_PARENTCLIP;
00988                 }
00989             }
00990             if(flags & DCX_CLIPSIBLINGS_W) {
00991                 clipstyle |= PSF_CLIPSIBLINGS;
00992             }
00993             if(flags & DCX_CLIPCHILDREN_W) {
00994                 clipstyle |= PSF_CLIPCHILDREN;
00995             }
00996             if(flags & DCX_PARENTCLIP_W) {
00997                 clipstyle |= PSF_PARENTCLIP;
00998             }
00999             //Always call WinGetClipPS; WinGetPS takes window & class style
01000             //into account
01001 //            if(clipstyle || !(flags & DCX_DEFAULTCLIP_W)) {
01002                  dprintf2(("WinGetClipPS style %x", clipstyle));
01003                  hps = WinGetClipPS(hWindow, clipwnd, clipstyle);
01004 //            }
01005 //            else hps = WinGetPS (hWindow);
01006 
01007             // default cp is OS/2 one: set to windows default (ODIN.INI)
01008             GpiSetCp(hps, GetDisplayCodepage());
01009         }
01010         psType = MICRO_CACHED;
01011     }
01012 
01013     if (!hps)
01014         goto error;
01015 
01016     HPSToHDC (hWindow, hps, NULL, NULL);
01017     pHps = (pDCData)GpiQueryDCData (hps);
01018 
01019     if(flags & DCX_WINDOW_W) {
01020          removeClientArea(wnd, pHps);
01021     }
01022     else selectClientArea(wnd, pHps);
01023 
01024     setMapMode(wnd, pHps, MM_TEXT_W);
01025 
01026     if ((flags & DCX_EXCLUDERGN_W) || (flags & DCX_INTERSECTRGN_W))
01027     {
01028         ULONG BytesNeeded;
01029         PRGNDATA RgnData;
01030         PRECT pr;
01031         int i;
01032         RECTL rectl;
01033 
01034         if (!hrgn)
01035             goto error;
01036 
01037         success = TRUE;
01038         if (flags & DCX_EXCLUDERGN_W)
01039         {
01040 #if 0 //CB: todo
01041          long height;
01042 
01043          BytesNeeded = GetRegionData (hrgn, 0, NULL);
01044          RgnData = (PRGNDATA_W)_alloca (BytesNeeded);
01045          if (RgnData == NULL)
01046                 goto error;
01047          GetRegionData (hrgn, BytesNeeded, RgnData);
01048 
01049          i = RgnData->rdh.nCount;
01050          pr = (PRECT)(RgnData->Buffer);
01051 
01052          if (flags & DCX_WINDOW_W)
01053                 height = wnd->getWindowHeight();
01054          else   height = wnd->getClientHeight();
01055 
01056          for (; (i > 0) && success; i--, pr++) {
01057             LONG y = pr->yBottom;
01058 
01059             pr->yBottom = height - pr->yTop;
01060             pr->yTop    = height - y;
01061             success &= GpiExcludeClipRectangle (pHps->hps, pr);
01062          }
01063 #endif
01064         }
01065         else //DCX_INTERSECTRGN_W
01066         {
01067             //SvL: I'm getting paint problems when clipping a dc created in GetDCEx
01068             //     with a region that covers the entire window (RealPlayer 7 Update 1)
01069             //     Using SelectClipRgn here doesn't make any difference.
01070             if(ExtSelectClipRgn(pHps->hps, hrgn, RGN_AND_W) == ERROR_W) {
01071                 dprintf(("ExtSelectClipRgn failed!!"));
01072             }
01073         }
01074         if (!success)
01075             goto error;
01076     }
01077 
01078     if (creatingOwnDC)
01079         wnd->setOwnDC ((HDC)hps);
01080 
01081     pHps->psType  = psType;
01082     pHps->hdcType = TYPE_1;
01083     //TODO: WM_SETREDRAW affects drawingAllowed flag!!
01084     GpiSetDrawControl (hps, DCTL_DISPLAY, drawingAllowed ? DCTL_ON : DCTL_OFF);
01085 
01086     dprintf (("User32: GetDCEx hwnd %x (%x %x) -> hdc %x", hwnd, hrgn, flags, pHps->hps));
01087     RELEASE_WNDOBJ(wnd);
01088 
01089 
01090     STATS_GetDCEx(hwnd, pHps->hps, hrgn, flags);
01091     return (HDC)pHps->hps;
01092 
01093 error:
01094     /* Something went wrong; clean up
01095      */
01096     dprintf(("ERROR: GetDCEx hwnd %x (%x %x) FAILED!", hwnd, hrgn, flags));
01097     DebugInt3();
01098     if (pHps)
01099     {
01100         if (pHps->hps)
01101         {
01102             if(pHps->psType == MICRO_CACHED)
01103                 WinReleasePS(pHps->hps);
01104             else
01105                 GpiDestroyPS(pHps->hps);
01106         }
01107 
01108         if (pHps->hdc)     DevCloseDC(pHps->hdc);
01109         if (pHps->hrgnHDC) GpiDestroyRegion(pHps->hps, pHps->hrgnHDC);
01110 
01111         O32_DeleteObject (pHps->nullBitmapHandle);
01112     }
01113     if(wnd) RELEASE_WNDOBJ(wnd);
01114     SetLastError(ERROR_INVALID_PARAMETER_W);
01115     return NULL;
01116 }
01117 //******************************************************************************
01118 //******************************************************************************
01119 HDC WIN32API GetDC (HWND hwnd)
01120 {
01121     if(!hwnd)
01122         return GetDCEx( GetDesktopWindow(), 0, DCX_CACHE_W | DCX_WINDOW_W );
01123 
01124     return GetDCEx (hwnd, NULL, DCX_USESTYLE_W);
01125 }
01126 //******************************************************************************
01127 //******************************************************************************
01128 HDC WIN32API GetWindowDC (HWND hwnd)
01129 {
01130     if (!hwnd) hwnd = GetDesktopWindow();
01131     return GetDCEx (hwnd, NULL, DCX_WINDOW_W | DCX_USESTYLE_W);
01132 }
01133 //******************************************************************************
01134 //Helper for RedrawWindow (RDW_ALLCHILDREN_W)
01135 //******************************************************************************
01136 LRESULT WIN32API RedrawChildEnumProc(HWND hwnd, LPARAM lParam)
01137 {
01138     RedrawWindow(hwnd, NULL, 0, lParam);
01139     return TRUE;
01140 }
01141 //******************************************************************************
01142 // This implementation of RedrawWindow supports
01143 // RDW_ERASE
01144 // RDW_NOERASE
01145 // RDW_INTERNALPAINT
01146 // RDW_NOINTERNALPAINT
01147 // RDW_INVALIDATE
01148 // RDW_VALIDATE
01149 // RDW_ERASENOW
01150 // RDW_UPDATENOW
01151 // RDW_FRAME
01152 //
01153 //TODO: Works ok for RDW_FRAME??
01154 //      SDK docs say RDW_FRAME is only valid for RDW_INVALIDATE...
01155 //******************************************************************************
01156 BOOL WIN32API RedrawWindow(HWND hwnd, const RECT* pRect, HRGN hrgn, DWORD redraw)
01157 {
01158     Win32BaseWindow *wnd;
01159 
01160     if(pRect) {
01161          dprintf(("RedrawWindow %x (%d,%d)(%d,%d) %x %x", hwnd, pRect->left, pRect->top, pRect->right, pRect->bottom, hrgn, redraw));
01162     }
01163     else dprintf(("RedrawWindow %x %x %x %x", hwnd, pRect, hrgn, redraw));
01164 
01165     if (hwnd == NULLHANDLE)
01166     {
01167         hwnd = HWND_DESKTOP;
01168         wnd  = Win32BaseWindow::GetWindowFromOS2Handle(OSLIB_HWND_DESKTOP);
01169 
01170         if (!wnd)
01171         {
01172             dprintf(("USER32:dc: RedrawWindow can't find desktop window %08xh\n",
01173                       hwnd));
01174             SetLastError(ERROR_INVALID_PARAMETER_W);
01175             return FALSE;
01176         }
01177     }
01178     else
01179     {
01180         wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
01181 
01182         if (!wnd)
01183         {
01184             dprintf(("USER32:dc: RedrawWindow can't find window %08xh\n",
01185                   hwnd));
01186             SetLastError(ERROR_INVALID_PARAMETER_W);
01187             return FALSE;
01188         }
01189         if(redraw & RDW_FRAME_W) {
01190              hwnd = wnd->getOS2FrameWindowHandle();
01191         }
01192         else hwnd = wnd->getOS2WindowHandle();
01193     }
01194 
01195     BOOL  IncludeChildren = (redraw & RDW_ALLCHILDREN_W) ? TRUE : FALSE;
01196     BOOL  success = TRUE;
01197     HPS   hpsTemp = NULLHANDLE;
01198     HRGN  hrgnTemp = NULLHANDLE;
01199     RECTL rectl;
01200 
01201     if (hrgn)
01202     {
01203         ULONG BytesNeeded;
01204         PRGNDATA RgnData;
01205         PRECTL pr;
01206         int i;
01207         LONG height;
01208 
01209         if(wnd) {
01210              height = (redraw & RDW_FRAME_W) ? wnd->getWindowHeight() : wnd->getClientHeight();
01211         }
01212         else height = OSLibQueryScreenHeight();
01213 
01214         if (!hrgn)
01215             goto error;
01216 
01217         BytesNeeded = GetRegionData (hrgn, 0, NULL);
01218         RgnData = (PRGNDATA)_alloca (BytesNeeded);
01219         if (RgnData == NULL)
01220           goto error;
01221         GetRegionData (hrgn, BytesNeeded, RgnData);
01222 
01223         pr = (PRECTL)(RgnData->Buffer);
01224         for (i = RgnData->rdh.nCount; i > 0; i--, pr++) {
01225             LONG temp = pr->yTop;
01226             pr->yTop = height - pr->yBottom;
01227             pr->yBottom = height - temp;
01228             dprintf2(("RedrawWindow: region (%d,%d) (%d,%d)", pr->xLeft, pr->yBottom, pr->xRight, pr->yTop));
01229         }
01230 
01231         hpsTemp = WinGetScreenPS (HWND_DESKTOP);
01232         hrgnTemp = GpiCreateRegion (hpsTemp, RgnData->rdh.nCount, (PRECTL)(RgnData->Buffer));
01233         if (!hrgnTemp) goto error;
01234     }
01235     else if (pRect)
01236     {
01237         if(wnd) {
01238             if(redraw & RDW_FRAME_W) {
01239                  mapWin32ToOS2Rect(wnd->getWindowHeight(), (PRECT)pRect, (PRECTLOS2)&rectl);
01240             }
01241             else mapWin32ToOS2Rect(wnd->getClientHeight(), (PRECT)pRect, (PRECTLOS2)&rectl);
01242         }
01243         else mapWin32ToOS2Rect(OSLibQueryScreenHeight(), (PRECT)pRect, (PRECTLOS2)&rectl);
01244     }
01245 
01246     if (redraw & RDW_INVALIDATE_W)
01247     {
01248         //TODO: SvL: pingpong.exe doesn't have RDW_NOERASE, but doesn't want WM_ERASEBKGND msgs        
01249         if (redraw & RDW_ERASE_W) {
01250             wnd->setEraseBkgnd(TRUE);
01251         }
01252         else 
01253         //Don't clear erase background flag if the window is 
01254         //already (partly) invalidated
01255         if (!WinQueryUpdateRect (hwnd, NULL)) {
01256             wnd->setEraseBkgnd(FALSE);
01257         }
01258 
01259         if (!pRect && !hrgn)
01260             success = WinInvalidateRect (hwnd, NULL, IncludeChildren);
01261         else
01262         if (hrgn) {
01263             success = WinInvalidateRegion (hwnd, hrgnTemp, IncludeChildren);
01264             if(IncludeChildren && WinQueryUpdateRect(hwnd, NULL) == FALSE) {
01265                 dprintf(("WARNING: WinQueryUpdateRect %x region %x returned false even though we just invalidated part of a window!!!", hwnd, hrgnTemp));
01266                 success = success = WinInvalidateRegion (hwnd, hrgnTemp, FALSE);
01267             }
01268         }
01269         else {
01270             dprintf2(("WinInvalidateRect (%d,%d)(%d,%d)", rectl.xLeft, rectl.yBottom, rectl.xRight, rectl.yTop));
01271             success = WinInvalidateRect (hwnd, &rectl, IncludeChildren);
01272 //SvL: If all children are included, then WinInvalidateRect is called
01273 //     with fIncludeChildren=1 -> rect of hwnd isn't invalidated if child(ren)
01274 //     overlap(s) the specified rectangle completely (EVEN if window doesn't
01275 //     have WS_CLIPCHILREN!)
01276 //     -> example: XWing vs Tie Fighter install window
01277 //     WinInvalidateRect with fIncludeChildren=0 invalidates both the parent
01278 //     and child windows
01279 //SvL: Can't always set fIncludeChildren to FALSE or else some controls in
01280 //     the RealPlayer setup application aren't redrawn when invalidating
01281 //     their parent
01282 //     SO: Check if IncludeChildren is set and part of the window is invalid
01283 //         If not -> call WinInvalidateRect with IncludeChildren=0 to force
01284 //         the window rectangle to be invalidated
01285 //
01286             if(IncludeChildren && WinQueryUpdateRect(hwnd, NULL) == FALSE) {
01287                 dprintf(("WARNING: WinQueryUpdateRect %x (%d,%d)(%d,%d) returned false even though we just invalidated part of a window!!!", hwnd, rectl.xLeft, rectl.yBottom, rectl.xRight, rectl.yTop));
01288                 success = WinInvalidateRect (hwnd, &rectl, FALSE);
01289             }
01290         }
01291 
01292         if (!success) goto error;
01293     }
01294     else if (redraw & RDW_VALIDATE_W)
01295     {
01296         if (redraw & RDW_NOERASE_W)
01297             wnd->setEraseBkgnd(FALSE);
01298 
01299         if (WinQueryUpdateRect (hwnd, NULL))
01300         {
01301             if(!pRect && !hrgn) {
01302                 success = WinValidateRect (hwnd, NULL, IncludeChildren);
01303             }
01304             else
01305             if(hrgn) {
01306                 success = WinValidateRegion (hwnd, hrgnTemp, IncludeChildren);
01307             }
01308             else {
01309                 success = WinValidateRect (hwnd, &rectl, IncludeChildren);
01310             }
01311             if(!success) goto error;
01312         }
01313     }
01314 
01315     if(WinQueryUpdateRect(hwnd, &rectl))
01316     {
01317         dprintf2(("Update region (%d,%d)(%d,%d)", rectl.xLeft, rectl.yBottom, rectl.xRight, rectl.yTop));
01318         //TODO: Does this work if RDW_ALLCHILDREN is set??
01319         if(redraw & RDW_UPDATENOW_W) 
01320         {
01321             dprintf(("RDW_UPDATENOW -> UpdateWindow"));
01322             UpdateWindow(wnd->getWindowHandle());
01323         }
01324         else
01325 //        if((redraw & RDW_ERASE_W) && (redraw & RDW_ERASENOW_W))
01326         if(redraw & RDW_ERASENOW_W && wnd->needsEraseBkgnd())
01327             wnd->setEraseBkgnd(sendEraseBkgnd(wnd) == 0);
01328 //      if(redraw & RDW_ALLCHILDREN_W) {
01329 //              EnumChildWindows(wnd->getWindowHandle(), RedrawChildEnumProc, redraw);
01330 //      }
01331     }
01332     else if((redraw & RDW_INTERNALPAINT_W) && !(redraw & RDW_INVALIDATE_W))
01333     {
01334         dprintf(("Manual redraw"));
01335         if(redraw & RDW_UPDATENOW_W) {
01336             wnd->MsgPaint(0, FALSE);
01337         }
01338         else PostMessageA(hwnd, WINWM_PAINT, 0, 0);
01339     }
01340 
01341 error:
01342     /* clean up */
01343     if (hrgnTemp)
01344         GpiDestroyRegion (hpsTemp, hrgnTemp);
01345 
01346     if (hpsTemp)
01347         WinReleasePS (hpsTemp);
01348 
01349     if (!success) {
01350         dprintf(("RedrawWindow failure!"));
01351         SetLastError(ERROR_INVALID_PARAMETER_W);
01352     }
01353     if(wnd) RELEASE_WNDOBJ(wnd);
01354     return (success);
01355 }
01356 //******************************************************************************
01357 //******************************************************************************
01358 BOOL WIN32API UpdateWindow (HWND hwnd)
01359 {
01360   Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
01361   RECTL rectl;
01362   BOOL  rc;
01363 
01364     if(!wnd) {
01365         dprintf (("ERROR: User32: UpdateWindow INVALID hwnd %x", hwnd));
01366         SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
01367         return FALSE;
01368     }
01369 
01370 #ifdef DEBUG
01371     if(WinQueryUpdateRect(wnd->getOS2WindowHandle(), &rectl))
01372     {
01373          RECT rectUpdate;
01374          mapOS2ToWin32Rect(wnd->getClientHeight(), (PRECTLOS2)&rectl, &rectUpdate);
01375 
01376          dprintf (("User32: UpdateWindow hwnd %x: update rectangle (%d,%d)(%d,%d)", hwnd, rectUpdate.left, rectUpdate.top, rectUpdate.right, rectUpdate.bottom));
01377     }
01378     else dprintf (("User32: UpdateWindow hwnd %x; EMPTY update rectangle (vis=%d/%d, show=%d/%d, vis parent=%d)", hwnd, WinIsWindowVisible(wnd->getOS2FrameWindowHandle()), WinIsWindowVisible(wnd->getOS2WindowHandle()), WinIsWindowShowing(wnd->getOS2FrameWindowHandle()), WinIsWindowShowing(wnd->getOS2WindowHandle()), IsWindowVisible(GetParent(hwnd))));
01379 #endif
01380     //SvL: This doesn't work right (Wine uses RDW_NOCHILDREN_W -> doesn't work here)
01381     //     Breaks vpbuddy
01382     //rc = RedrawWindow(hwnd, NULL, 0, RDW_UPDATENOW_W | RDW_ALLCHILDREN_W);
01383     //   -> RDW_UPDATENOW causes WM_PAINT messages to be directy posted to window
01384     //   handler; possibly bypassing queued WM_PAINT messages for parent window(s)
01385     //   -> out of sync painting (i.e. parent paints over child)
01386 
01387 //    if(!WinIsWindowShowing(wnd->getOS2FrameWindowHandle()) || !WinIsWindowShowing(wnd->getOS2WindowHandle())) {
01388 //        dprintf(("UpdateWindow: window not showing %d/%d", WinIsWindowShowing(wnd->getOS2FrameWindowHandle()), WinIsWindowShowing(wnd->getOS2WindowHandle()) ));
01389 //        RELEASE_WNDOBJ(wnd);
01390 //        return FALSE;
01391 //    }
01392     //Must use frame window here. If the frame window has a valid update region and we call
01393     //WinUpdateWindow for the client window, then no WM_PAINT messages will be sent.
01394     rc = WinUpdateWindow(wnd->getOS2FrameWindowHandle());
01395 #ifdef DEBUG
01396     if(WinQueryUpdateRect(wnd->getOS2WindowHandle(), NULL))
01397     {
01398         //if parent has valid update region then WinUpdateWindow will still fail..
01399         //might be harmless and happen even in windows
01400         dprintf (("ERROR: User32: UpdateWindow didn't send WM_PAINT messages!!"));
01401     }
01402 #endif
01403     RELEASE_WNDOBJ(wnd);
01404     return rc;
01405 }
01406 //******************************************************************************
01407 //******************************************************************************
01408 BOOL WIN32API ValidateRect( HWND hwnd, const RECT * lprc)
01409 {
01410     if(lprc) {
01411          dprintf(("USER32: ValidateRect %x (%d,%d)(%d,%d)", hwnd, lprc->left, lprc->top, lprc->right, lprc->bottom));
01412     }
01413     else dprintf(("USER32: ValidateRect %x", hwnd));
01414 
01415     return RedrawWindow( hwnd, lprc, 0, RDW_VALIDATE_W | RDW_NOCHILDREN_W | (hwnd==0 ? RDW_UPDATENOW_W : 0));
01416 }
01417 //******************************************************************************
01418 //******************************************************************************
01419 BOOL WIN32API ValidateRgn( HWND hwnd, HRGN  hrgn)
01420 {
01421     dprintf(("USER32: ValidateRgn %x %x", hwnd, hrgn));
01422     return RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE_W | RDW_NOCHILDREN_W | (hwnd==0 ? RDW_UPDATENOW_W : 0));
01423 }
01424 //******************************************************************************
01425 //******************************************************************************
01426 BOOL WIN32API InvalidateRect (HWND hwnd, const RECT *pRect, BOOL erase)
01427 {
01428    BOOL result;
01429 
01430     if(pRect) {
01431         dprintf(("InvalidateRect %x (%d,%d)(%d,%d) erase=%d", hwnd, pRect->left, pRect->top, pRect->right, pRect->bottom, erase));
01432     }
01433     else dprintf(("InvalidateRect %x NULL erase=%d", hwnd, erase));
01434 #if 1
01435     result = RedrawWindow (hwnd, pRect, NULLHANDLE,
01436                            RDW_ALLCHILDREN_W | RDW_INVALIDATE_W |
01437                            (erase ? RDW_ERASE_W : 0) |
01438                            (hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
01439 #else
01440     result = RedrawWindow (hwnd, pRect, NULLHANDLE,
01441                            RDW_ALLCHILDREN_W | RDW_INVALIDATE_W |
01442                            (erase ? RDW_ERASE_W : RDW_NOERASE_W) |
01443                            (hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
01444 #endif
01445     return (result);
01446 }
01447 //******************************************************************************
01448 //******************************************************************************
01449 BOOL WIN32API InvalidateRgn (HWND hwnd, HRGN hrgn, BOOL erase)
01450 {
01451     BOOL result;
01452 
01453     dprintf(("InvalidateRgn %x %x erase=%d", hwnd, hrgn, erase));
01454 #if 1
01455     result = RedrawWindow (hwnd, NULL, hrgn,
01456                           RDW_ALLCHILDREN_W | RDW_INVALIDATE_W |
01457                           (erase ? RDW_ERASE_W : 0) |
01458                           (hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
01459 #else
01460     result = RedrawWindow (hwnd, NULL, hrgn,
01461                           RDW_ALLCHILDREN_W | RDW_INVALIDATE_W |
01462                           (erase ? RDW_ERASE_W : RDW_NOERASE_W) |
01463                           (hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
01464 #endif
01465     return (result);
01466 }
01467 //******************************************************************************
01468 //TODO: Change for client rectangle!!!!!
01469 //******************************************************************************
01470 BOOL setPMRgnIntoWinRgn (HPS hps, HRGN hrgnPM, HRGN hrgnWin, LONG height)
01471 {
01472    BOOL    rc;
01473    RGNRECT rgnRect;
01474    rgnRect.ircStart    = 1;
01475    rgnRect.crc         = 0;
01476    rgnRect.ulDirection = RECTDIR_LFRT_TOPBOT;
01477 
01478    rc = GpiQueryRegionRects (hps, hrgnPM, NULL, &rgnRect, NULL);
01479 
01480    if (rc && (rgnRect.crcReturned > 0))
01481    {
01482       PRECTL Rcls = new RECTL[rgnRect.crcReturned];
01483       PRECTL pRcl = Rcls;
01484 
01485       if (Rcls != NULL)
01486       {
01487          rgnRect.crc = rgnRect.crcReturned;
01488          rc = GpiQueryRegionRects (hps, hrgnPM, NULL, &rgnRect, Rcls);
01489 
01490          rc = SetRectRgn(hrgnWin, pRcl->xLeft, height - pRcl->yTop,
01491                          pRcl->xRight, height - pRcl->yBottom);
01492 
01493          if (rgnRect.crcReturned > 1)
01494          {
01495             int i;
01496             HRGN temp;
01497             temp = CreateRectRgn (0, 0, 1, 1);
01498 
01499             for (i = 1, pRcl++; rc && (i < rgnRect.crcReturned); i++, pRcl++)
01500             {
01501               rc = SetRectRgn (temp, pRcl->xLeft, height - pRcl->yTop,
01502                                pRcl->xRight, height - pRcl->yBottom);
01503               rc &= CombineRgn (hrgnWin, hrgnWin, temp, RGN_OR_W);
01504             }
01505             DeleteObject (temp);
01506          }
01507          delete[] Rcls;
01508       }
01509       else
01510       {
01511          rc = FALSE;
01512       }
01513    }
01514    else
01515    {
01516       rc = SetRectRgn (hrgnWin, 0, 0, 0, 0);
01517    }
01518 
01519    return (rc);
01520 }
01521 //******************************************************************************
01522 //Using WinScrollWindow to scroll child windows is better (smoother).
01523 //******************************************************************************
01524 INT WIN32API ScrollWindowEx(HWND hwnd, int dx, int dy, const RECT *pScroll, const RECT *pClip,
01525                             HRGN hrgnUpdate, PRECT pRectUpdate, UINT scrollFlag)
01526 {
01527  Win32BaseWindow *window;
01528  APIRET  rc;
01529  RECTL   scrollRect;
01530  RECTL   clipRect;
01531  PRECTL  pScrollOS2 = NULL;
01532  PRECTL  pClipOS2   = NULL;
01533  ULONG   scrollFlagsOS2 = 0;
01534  int     orgdy = dy;
01535  int     regionType = ERROR_W;
01536 
01537     window = Win32BaseWindow::GetWindowFromHandle(hwnd);
01538     if(!window) {
01539         dprintf(("ScrollWindowEx, window %x not found", hwnd));
01540         return 0;
01541     }
01542 
01543     dprintf(("ScrollWindowEx %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
01544 
01545     dy = revertDy (window, dy);
01546 
01547     if (scrollFlag & SW_INVALIDATE_W)      scrollFlagsOS2 |= SW_INVALIDATERGN;
01548     if (scrollFlag & SW_SCROLLCHILDREN_W)  scrollFlagsOS2 |= SW_SCROLLCHILDREN;
01549 
01550     if(pScroll) {
01551         mapWin32ToOS2Rect(window->getClientHeight(), (RECT *)pScroll, (PRECTLOS2)&scrollRect);
01552         pScrollOS2 = &scrollRect;
01553     }
01554 
01555     if(pClip) {
01556         mapWin32ToOS2Rect(window->getClientHeight(), (RECT *)pClip, (PRECTLOS2)&clipRect);
01557         pClipOS2 = &clipRect;
01558     }
01559 
01560     RECTL rectlUpdate;
01561     HRGN  hrgn = NULLHANDLE;
01562     HPS   hpsScreen  = 0;
01563 
01564     if(hrgnUpdate) {
01565         RECTL rectl = { 1, 1, 2, 2 };
01566 
01567         hpsScreen = WinGetScreenPS (HWND_DESKTOP);
01568         hrgn      = GpiCreateRegion(hpsScreen, 1, &rectl);
01569     }
01570 
01571     if (scrollFlag & SW_SMOOTHSCROLL_W)
01572     {
01573         INT time = (scrollFlag >> 16) & 0xFFFF;
01574 
01575         //CB: todo, scroll in several steps
01576         //    is time in ms? time <-> iteration count?
01577     }
01578 
01579     LONG lComplexity = WinScrollWindow(window->getOS2WindowHandle(), dx, dy,
01580                                        pScrollOS2, pClipOS2,
01581                                        hrgn, &rectlUpdate, scrollFlagsOS2);
01582     if (lComplexity == RGN_ERROR)
01583     {
01584         RELEASE_WNDOBJ(window);
01585         return ERROR_W;
01586     }
01587 
01588     //Notify children that they have moved (according to the SDK docs,
01589     //they only receive a WM_MOVE message)
01590     //(PM only does this for windows with CS_MOVENOTIFY class)
01591     //TODO: Verify this (no WM_WINDOWPOSCHANGING/ED?)
01592     if (scrollFlag & SW_SCROLLCHILDREN_W)
01593     {
01594         HWND hwndChild;
01595         RECT rectChild, rc;
01596 
01597             dprintf(("ScrollWindowEx: Scroll child windows"));
01598             GetClientRect(hwnd, &rc);
01599             if (pScroll) IntersectRect(&rc, &rc, pScroll);
01600 
01601             hwndChild = GetWindow(hwnd, GW_CHILD_W);
01602 
01603             while(hwndChild)
01604             {
01605                 Win32BaseWindow *child;
01606 
01607                 child = Win32BaseWindow::GetWindowFromHandle(hwndChild);
01608                 if(!child) {
01609                     dprintf(("ERROR: ScrollWindowEx, child %x not found", hwnd));
01610                     RELEASE_WNDOBJ(window);
01611                     return 0;
01612                 }
01613                 rectChild = *child->getWindowRect();
01614                 if(!pScroll || IntersectRect(&rectChild, &rectChild, &rc))
01615                 {
01616                      dprintf(("ScrollWindowEx: Scroll child window %x", hwndChild));
01617                      child->ScrollWindow(dx, orgdy);
01618                 }
01619                 RELEASE_WNDOBJ(child);
01620                 hwndChild = GetWindow(hwndChild, GW_HWNDNEXT_W);        
01621             }
01622             dprintf(("***ScrollWindowEx: Scroll child windows DONE"));
01623     }
01624 
01625     RECT winRectUpdate;
01626 
01627     mapOS2ToWin32Rect(window->getClientHeight(), (PRECTLOS2)&rectlUpdate, &winRectUpdate);
01628 
01629     if (pRectUpdate)
01630        *pRectUpdate = winRectUpdate;
01631 
01632     if (hrgnUpdate) {
01633         rc = setPMRgnIntoWinRgn(hpsScreen, hrgn, hrgnUpdate, window->getClientHeight());
01634         GpiDestroyRegion(hpsScreen, hrgn);
01635         WinReleasePS(hpsScreen);
01636     }
01637 
01638 #if 0
01639     //SvL: WinScrollWindow already invalidates the area; no need to do it again
01640     //(call to invalidateRect was wrong; has to include erase flag)
01641     if ((scrollFlag & SW_INVALIDATE_W) &&
01642         ((lComplexity == RGN_RECT) || (lComplexity == RGN_COMPLEX)))
01643     {
01644        rc = RedrawWindow (hwnd, &winRectUpdate, NULLHANDLE,
01645                           RDW_ALLCHILDREN_W | RDW_INVALIDATE_W |
01646                           ((scrollFlag & SW_ERASE_W) ? RDW_ERASE_W : 0) |
01647                           RDW_UPDATENOW_W);
01648 
01649 //       rc = InvalidateRect (hwnd, &winRectUpdate, (scrollFlag & SW_ERASE_W) ? 1 : 0);
01650        if (rc == FALSE)
01651        {
01652           RELEASE_WNDOBJ(window);
01653           return (0);
01654        }
01655     }
01656 #endif
01657 
01658     switch (lComplexity)
01659     {
01660     case RGN_NULL:
01661         regionType = NULLREGION_W;
01662         break;
01663     case RGN_RECT:
01664         regionType = SIMPLEREGION_W;
01665         break;
01666     case RGN_COMPLEX:
01667         regionType = COMPLEXREGION_W;
01668         break;
01669     default:
01670         regionType = ERROR_W;
01671         break;
01672     }
01673 
01674     RELEASE_WNDOBJ(window);
01675     return (regionType);
01676 }
01677 //******************************************************************************
01678 //******************************************************************************
01679 BOOL WIN32API ScrollWindow(HWND hwnd, int dx, int dy, const RECT *pScroll, const RECT *pClip)
01680 {
01681     dprintf(("ScrollWindow %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
01682     return (ERROR_W != ScrollWindowEx(hwnd, dx, dy, pScroll, pClip, 0, NULL,
01683                                       (pScroll ? 0 : SW_SCROLLCHILDREN_W) |
01684                                       SW_INVALIDATE_W ));
01685 }
01686 //******************************************************************************
01687 //******************************************************************************
01688 HWND WIN32API WindowFromDC(HDC hdc)
01689 {
01690    pDCData pHps = (pDCData)GpiQueryDCData( (HPS)hdc );
01691 
01692    dprintf2(("USER32:  WindowFromDC %x", hdc));
01693    if ( pHps )
01694       return OS2ToWin32Handle(pHps->hwnd);
01695    else
01696       return 0;
01697 }
01698 //******************************************************************************
01699 //******************************************************************************
01700 

Generated on Wed Jan 23 23:17:28 2002 for ODIN-user32 by doxygen1.2.11.1 written by Dimitri van Heesch, © 1997-2001