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C++ DC_LockDc函数代码示例

本文整理汇总了C++中DC_LockDc函数的典型用法代码示例。如果您正苦于以下问题：C++ DC_LockDc函数的具体用法？C++ DC_LockDc怎么用？C++ DC_LockDc使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了DC_LockDc函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: DxEngLockDC

/*++
* @name DxEngLockDC
* @implemented
*
* The function DxEngLockDC locks a hdc from dxg.sys
*
* @param HDC hDC
* The handle we want to lock
*
* @return
* Returns PDC if lock succeeded or NULL if it failed.
*
* @remarks.
* none
*
*--*/
PDC
APIENTRY
DxEngLockDC(HDC hDC)
{
    DPRINT1("ReactX Calling : DxEngLockDC\n");
    return DC_LockDc(hDC);
}
开发者ID:hoangduit，项目名称:reactos，代码行数:23，代码来源:dxeng.c

示例2: NtGdiSetBrushOrg

BOOL
APIENTRY
NtGdiSetBrushOrg(
    _In_ HDC hdc,
    _In_ INT x,
    _In_ INT y,
    _Out_opt_ LPPOINT pptOut)
{
    PDC pdc;

    /* Lock the DC */
    pdc = DC_LockDc(hdc);
    if (pdc == NULL)
    {
        EngSetLastError(ERROR_INVALID_HANDLE);
        return FALSE;
    }

    /* Check if the old origin was requested */
    if (pptOut != NULL)
    {
        /* Enter SEH for buffer transfer */
        _SEH2_TRY
        {
            /* Probe and copy the old origin */
            ProbeForWrite(pptOut, sizeof(POINT), 1);
            *pptOut = pdc->pdcattr->ptlBrushOrigin;
        }
        _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
        {
            DC_UnlockDc(pdc);
            _SEH2_YIELD(return FALSE);
        }
        _SEH2_END;
    }
开发者ID:staring，项目名称:RosFE，代码行数:35，代码来源:dcobjs.c

示例3: IntGdiSetTextColor

COLORREF
FASTCALL
IntGdiSetTextColor(HDC hDC,
                   COLORREF color)
{
    COLORREF crOldColor;
    PDC pdc;
    PDC_ATTR pdcattr;

    pdc = DC_LockDc(hDC);
    if (!pdc)
    {
        EngSetLastError(ERROR_INVALID_HANDLE);
        return CLR_INVALID;
    }
    pdcattr = pdc->pdcattr;

    crOldColor = (COLORREF) pdcattr->ulForegroundClr;
    pdcattr->ulForegroundClr = (ULONG)color;

    if (pdcattr->crForegroundClr != color)
    {
        pdcattr->ulDirty_ |= (DIRTY_TEXT|DIRTY_LINE|DIRTY_FILL);
        pdcattr->crForegroundClr = color;
    }

    DC_vUpdateTextBrush(pdc);

    DC_UnlockDc(pdc);

    return  crOldColor;
}
开发者ID:Strongc，项目名称:reactos，代码行数:32，代码来源:dcutil.c

示例4: GreSetBrushOrg

BOOL FASTCALL
GreSetBrushOrg(
    HDC hdc,
    INT x,
    INT y,
    LPPOINT pptOut)
{
    PDC pdc = DC_LockDc(hdc);
    if (pdc == NULL)
    {
        EngSetLastError(ERROR_INVALID_HANDLE);
        return FALSE;
    }

    if (pptOut != NULL)
    {
        *pptOut = pdc->pdcattr->ptlBrushOrigin;
    }

    pdc->pdcattr->ptlBrushOrigin.x = x;
    pdc->pdcattr->ptlBrushOrigin.y = y;

    DC_vSetBrushOrigin(pdc, x, y);

    DC_UnlockDc(pdc);
    return TRUE;
}
开发者ID:Moteesh，项目名称:reactos，代码行数:27，代码来源:dcutil.c

示例5: IntGdiSetBkColor

COLORREF FASTCALL
IntGdiSetBkColor(HDC hDC, COLORREF color)
{
    COLORREF oldColor;
    PDC dc;
    PDC_ATTR pdcattr;
    HBRUSH hBrush;

    if (!(dc = DC_LockDc(hDC)))
    {
        EngSetLastError(ERROR_INVALID_HANDLE);
        return CLR_INVALID;
    }
    pdcattr = dc->pdcattr;

    oldColor = pdcattr->ulBackgroundClr;
    pdcattr->ulBackgroundClr = color;

    if (pdcattr->crBackgroundClr != color)
    {
        pdcattr->ulDirty_ |= (DIRTY_BACKGROUND|DIRTY_LINE|DIRTY_FILL); // Clear Flag if set.
        pdcattr->crBackgroundClr = color;
    }
    hBrush = pdcattr->hbrush;
    DC_UnlockDc(dc);
    NtGdiSelectBrush(hDC, hBrush);
    return oldColor;
}
开发者ID:Moteesh，项目名称:reactos，代码行数:28，代码来源:dcutil.c

示例6: IntGdiSetTextAlign

UINT
FASTCALL
IntGdiSetTextAlign(HDC  hDC,
                   UINT  Mode)
{
    UINT prevAlign;
    DC *dc;
    PDC_ATTR pdcattr;

    dc = DC_LockDc(hDC);
    if (!dc)
    {
        EngSetLastError(ERROR_INVALID_HANDLE);
        return GDI_ERROR;
    }
    pdcattr = dc->pdcattr;
    prevAlign = pdcattr->lTextAlign;
    pdcattr->lTextAlign = Mode;
    if (pdcattr->dwLayout & LAYOUT_RTL)
    {
        if ((Mode & TA_CENTER) != TA_CENTER) Mode ^= TA_RIGHT;
    }
    pdcattr->flTextAlign = Mode & TA_MASK;
    DC_UnlockDc(dc);
    return  prevAlign;
}
开发者ID:Moteesh，项目名称:reactos，代码行数:26，代码来源:dcutil.c

示例7: IntGdiSetTextColor

COLORREF
FASTCALL
IntGdiSetTextColor(HDC hDC,
                   COLORREF color)
{
    COLORREF crOldColor;
    PDC pdc;
    PDC_ATTR pdcattr;

    pdc = DC_LockDc(hDC);
    if (!pdc)
    {
        EngSetLastError(ERROR_INVALID_HANDLE);
        return CLR_INVALID;
    }
    pdcattr = pdc->pdcattr;

    // What about ulForegroundClr, like in gdi32?
    crOldColor = pdcattr->crForegroundClr;
    pdcattr->crForegroundClr = color;
    DC_vUpdateTextBrush(pdc);

    DC_UnlockDc(pdc);

    return  crOldColor;
}
开发者ID:HBelusca，项目名称:NasuTek-Odyssey，代码行数:26，代码来源:dcutil.c

示例8: IntAnimatePalette

UINT APIENTRY
IntAnimatePalette(HPALETTE hPal,
                  UINT StartIndex,
                  UINT NumEntries,
                  CONST PPALETTEENTRY PaletteColors)
{
    UINT ret = 0;

    if( hPal != NtGdiGetStockObject(DEFAULT_PALETTE) )
    {
        PPALETTE palPtr;
        UINT pal_entries;
        HDC hDC;
        PDC dc;
        PWND Wnd;
        const PALETTEENTRY *pptr = PaletteColors;

        palPtr = PALETTE_ShareLockPalette(hPal);
        if (!palPtr) return FALSE;

        pal_entries = palPtr->NumColors;
        if (StartIndex >= pal_entries)
        {
            PALETTE_ShareUnlockPalette(palPtr);
            return FALSE;
        }
        if (StartIndex+NumEntries > pal_entries) NumEntries = pal_entries - StartIndex;

        for (NumEntries += StartIndex; StartIndex < NumEntries; StartIndex++, pptr++)
        {
            /* According to MSDN, only animate PC_RESERVED colours */
            if (palPtr->IndexedColors[StartIndex].peFlags & PC_RESERVED)
            {
                memcpy( &palPtr->IndexedColors[StartIndex], pptr,
                        sizeof(PALETTEENTRY) );
                ret++;
                PALETTE_ValidateFlags(&palPtr->IndexedColors[StartIndex], 1);
            }
        }

        PALETTE_ShareUnlockPalette(palPtr);

        /* Immediately apply the new palette if current window uses it */
        Wnd = UserGetDesktopWindow();
        hDC =  UserGetWindowDC(Wnd);
        dc = DC_LockDc(hDC);
        if (NULL != dc)
        {
            if (dc->dclevel.hpal == hPal)
            {
                DC_UnlockDc(dc);
                IntGdiRealizePalette(hDC);
            }
            else
                DC_UnlockDc(dc);
        }
        UserReleaseDC(Wnd,hDC, FALSE);
    }
    return ret;
}
开发者ID:hoangduit，项目名称:reactos，代码行数:60，代码来源:palette.c

示例9: NtGdiOffsetClipRgn

int APIENTRY NtGdiOffsetClipRgn(HDC  hDC,
                       int  XOffset,
                       int  YOffset)
{
  INT Result;
  DC *dc;

  if(!(dc = DC_LockDc(hDC)))
  {
    EngSetLastError(ERROR_INVALID_HANDLE);
    return ERROR;
  }

  if(dc->rosdc.hClipRgn != NULL)
  {
    Result = NtGdiOffsetRgn(dc->rosdc.hClipRgn,
                            XOffset,
                            YOffset);
    CLIPPING_UpdateGCRegion(dc);
  }
  else
  {
    Result = NULLREGION;
  }

  DC_UnlockDc(dc);
  return Result;
}
开发者ID:HBelusca，项目名称:NasuTek-Odyssey，代码行数:28，代码来源:cliprgn.c

示例10: IntGdiSetHookFlags

WORD APIENTRY
IntGdiSetHookFlags(HDC hDC, WORD Flags)
{
    WORD wRet;
    DC *dc = DC_LockDc(hDC);

    if (NULL == dc)
    {
        EngSetLastError(ERROR_INVALID_HANDLE);
        return 0;
    }

    wRet = dc->fs & DC_FLAG_DIRTY_RAO; // FIXME: Wrong flag!

    /* Info in "Undocumented Windows" is slightly confusing. */
    DPRINT("DC %p, Flags %04x\n", hDC, Flags);

    if (Flags & DCHF_INVALIDATEVISRGN)
    {
        /* hVisRgn has to be updated */
        dc->fs |= DC_FLAG_DIRTY_RAO;
    }
    else if (Flags & DCHF_VALIDATEVISRGN || 0 == Flags)
    {
        //dc->fs &= ~DC_FLAG_DIRTY_RAO;
    }

    DC_UnlockDc(dc);

    return wRet;
}
开发者ID:Strongc，项目名称:reactos，代码行数:31，代码来源:dcutil.c

示例11: NtGdiSelectBrush

 /*
 * @implemented
 */
HBRUSH
APIENTRY
NtGdiSelectBrush(
    IN HDC hDC,
    IN HBRUSH hBrush)
{
    PDC pDC;
    HBRUSH hOrgBrush;

    if (hDC == NULL || hBrush == NULL) return NULL;

    pDC = DC_LockDc(hDC);
    if (!pDC)
    {
        return NULL;
    }

    /* Simply return the user mode value, without checking */
    hOrgBrush = pDC->pdcattr->hbrush;
    pDC->pdcattr->hbrush = hBrush;
    DC_vUpdateFillBrush(pDC);

    DC_UnlockDc(pDC);

    return hOrgBrush;
}
开发者ID:HBelusca，项目名称:NasuTek-Odyssey，代码行数:29，代码来源:dcobjs.c

示例12: NtGdiSelectPen

 /*
 * @implemented
 */
HPEN
APIENTRY
NtGdiSelectPen(
    IN HDC hDC,
    IN HPEN hPen)
{
    PDC pDC;
    HPEN hOrgPen;

    if (hDC == NULL || hPen == NULL) return NULL;

    pDC = DC_LockDc(hDC);
    if (!pDC)
    {
        return NULL;
    }

    /* Simply return the user mode value, without checking */
    hOrgPen = pDC->pdcattr->hpen;
    pDC->pdcattr->hpen = hPen;
    DC_vUpdateLineBrush(pDC);

    DC_UnlockDc(pDC);

    return hOrgPen;
}
开发者ID:HBelusca，项目名称:NasuTek-Odyssey，代码行数:29，代码来源:dcobjs.c

示例13: GdiSelectVisRgn

INT FASTCALL
GdiSelectVisRgn(HDC hdc, HRGN hrgn)
{
  int retval;
  DC *dc;
  PREGION prgn;

  if (!hrgn)
  {
  	EngSetLastError(ERROR_INVALID_PARAMETER);
  	return ERROR;
  }
  if (!(dc = DC_LockDc(hdc)))
  {
  	EngSetLastError(ERROR_INVALID_HANDLE);
  	return ERROR;
  }

  dc->fs &= ~DC_FLAG_DIRTY_RAO;

  ASSERT (dc->prgnVis != NULL);

  prgn = RGNOBJAPI_Lock(hrgn, NULL);
  retval = prgn ? IntGdiCombineRgn(dc->prgnVis, prgn, NULL, RGN_COPY) : ERROR;
  RGNOBJAPI_Unlock(prgn);
  if ( retval != ERROR )
  {
    IntGdiOffsetRgn(dc->prgnVis, -dc->ptlDCOrig.x, -dc->ptlDCOrig.y);
    CLIPPING_UpdateGCRegion(dc);
  }
  DC_UnlockDc(dc);

  return retval;
}
开发者ID:HBelusca，项目名称:NasuTek-Odyssey，代码行数:34，代码来源:cliprgn.c

示例14: DceSetDrawable

static VOID APIENTRY
DceSetDrawable( PWND Window OPTIONAL,
                HDC hDC,
                ULONG Flags,
                BOOL SetClipOrigin)
{
  DC *dc = DC_LockDc(hDC);
  if(!dc)
      return;

  if (Window == NULL)
  {
      dc->ptlDCOrig.x = 0;
      dc->ptlDCOrig.y = 0;
  }
  else
  {
      if (Flags & DCX_WINDOW)
      {
         dc->ptlDCOrig.x = Window->rcWindow.left;
         dc->ptlDCOrig.y = Window->rcWindow.top;
      }
      else
      {
         dc->ptlDCOrig.x = Window->rcClient.left;
         dc->ptlDCOrig.y = Window->rcClient.top;
      }
  }
  dc->fs |= DC_FLAG_DIRTY_RAO;
  DC_UnlockDc(dc);
}
开发者ID:GYGit，项目名称:reactos，代码行数:31，代码来源:windc.c

示例15: NtGdiExtSelectClipRgn

int
APIENTRY
NtGdiExtSelectClipRgn(
    HDC  hDC,
    HRGN  hrgn,
    int  fnMode)
{
    int retval;
    DC *dc;
    PREGION prgn;

    if (!(dc = DC_LockDc(hDC)))
    {
        EngSetLastError(ERROR_INVALID_HANDLE);
        return ERROR;
    }

    prgn = REGION_LockRgn(hrgn);

    if ((prgn == NULL) && (fnMode != RGN_COPY))
    {
        EngSetLastError(ERROR_INVALID_HANDLE);
        retval = ERROR;
    }
    else
    {
        retval = IntGdiExtSelectClipRgn(dc, prgn, fnMode);
    }

    if (prgn)
        REGION_UnlockRgn(prgn);

    DC_UnlockDc(dc);
    return retval;
}
开发者ID:GYGit，项目名称:reactos，代码行数:35，代码来源:cliprgn.c


注：本文中的DC_LockDc函数示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。