VS读取剪贴板中的位图数据

最新推荐文章于 2022-11-06 21:16:33 发布

原创最新推荐文章于 2022-11-06 21:16:33 发布 · 682 阅读

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本文详细介绍了如何使用C语言编程从Windows剪贴板中读取并处理位图数据，涵盖了获取剪贴板内容、解析位图信息等关键步骤。

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[code=C/C++]
// pDC is the DC to draw to
// metafile is a CRect to display the DIB/Metafile in
CRect metafile(0, 0, 100, 100); // example location
if (IsClipboardFormatAvailable(CF_METAFILEPICT))
{
// play a metafile from the clipboard if available
  GLOBALHANDLE hGMem ;
  LPMETAFILEPICT lpMFP ;
  OpenClipboard() ;
  hGMem = GetClipboardData(CF_METAFILEPICT) ;
  lpMFP = (LPMETAFILEPICT)GlobalLock(hGMem) ;
  pDC->SaveDC() ;
  pDC->SetMapMode(lpMFP->mm) ;
  pDC->SetViewportExt(metafile.Width(), metafile.Height()) ;
  pDC->SetViewportOrg(metafile.left, metafile.top) ;
  pDC->PlayMetaFile(lpMFP->hMF) ;
  VERIFY(pDC->RestoreDC(-1)) ;
  GlobalUnlock(hGMem) ;
  CloseClipboard() ;
}if (IsClipboardFormatAvailable(CF_DIB))
{
// a DIB is in the clipboard, draw it out
  GLOBALHANDLE hGMem ;
  LPBITMAPINFO lpBI ;
  void* pDIBBits;  OpenClipboard() ;
  hGMem = GetClipboardData(CF_DIB) ;
  lpBI = (LPBITMAPINFO)GlobalLock(hGMem) ;
// point to DIB bits after BITMAPINFO object
  pDIBBits = (void*)(lpBI + 1);
  ::StretchDIBits(pDC->m_hDC,
                   metafile.left, metafile.top,
                   metafile.Width(), metafile.Height(),
                   0, 0, lpBI->bmiHeader.biWidth,
                   lpBI->bmiHeader.biHeight,
                   pDIBBits, lpBI, DIB_RGB_COLORS, SRCCOPY);
  GlobalUnlock(hGMem) ;
  CloseClipboard() ;
}