首先,这个函数只能针对24色的bitmap.
void CAppDlg::WriteBmp(CBitmap *PBitmap){ BITMAPINFO *m_pBMI; BYTE *m_pDIBData; BITMAPFILEHEADER bfh; BITMAPINFOHEADER bi; BITMAP BM; PBitmap->GetObject(sizeof(BM),&BM); CClientDC dc(this); bi.biSize = sizeof(BITMAPINFOHEADER); bi.biWidth = BM.bmWidth; bi.biHeight = BM.bmHeight; bi.biPlanes = 1; bi.biBitCount = 24; bi.biCompression = 0; bi.biSizeImage = 0; bi.biXPelsPerMeter = 0; bi.biYPelsPerMeter = 0; bi.biClrUsed = 0; bi.biClrImportant = 0; bfh.bfType=0x4d42; bfh.bfOffBits=sizeof(bfh)+sizeof(BITMAPINFOHEADER); bfh.bfSize=bfh.bfOffBits+BM.bmWidth*BM.bmHeight*3; bfh.bfReserved1=0; bfh.bfReserved2=0; m_pBMI=(BITMAPINFO*)new char[sizeof(BITMAPINFO)]; m_pDIBData=(BYTE*)new char[bfh.bfSize-bfh.bfOffBits]; memcpy(m_pBMI,&bi,sizeof(BITMAPINFOHEADER)); GetDIBits(dc.GetSafeHdc(), (HBITMAP)PBitmap->GetSafeHandle(), 0l, (DWORD)bi.biHeight, (LPVOID)m_pDIBData,(LPBITMAPINFO)m_pBMI, (DWORD)DIB_RGB_COLORS); CFile file; if(!file.Open(m_FileName,CFile::modeCreate|CFile::modeWrite)) { MessageBox("error!"); return; } file.Write(&bfh,sizeof(bfh)); file.Write(m_pBMI,sizeof(BITMAPINFOHEADER)); file.Write(m_pDIBData,BM.bmWidth*BM.bmHeight*3); file.Close(); delete m_pBMI; delete m_pDIBData;
}
其实横简单吧！在本站的GetPicture软件中有源代码.
