VC 中位图的显示

来源：互联网发布：软件测试过程管理 pdf 编辑：程序博客网时间：2024/05/22 12:26

RECT rect; GetClientRect(hwnd,&rect);
HDC hdcmem,hdc;
HBITMAP hbitmap,hbitmapOld;

hdc=GetDC(hwnd);
hdcmem=CreateCompatibleDC(hdc);
hbitmap=LoadBitmap(hInst,MAKEINTRESOURCE(IDB_BACKGROUND));
//GetObject(MAKEINTRESOURCE(IDB_BACKGROUND),sizeof(HBITMAP),hbitmap);
hbitmapOld=(HBITMAP)SelectObject(hdcmem,hbitmap);

//StretchBlt(hdc,0,0,500,500,hdcmem,0,0,470,420,SRCCOPY);
BitBlt(hdc,button[num].rect.left,button[num].rect.top,
75,50,hdcmem,button[num].rect.left,button[num].rect.top,SRCCOPY);
DeleteObject(hbitmap);
DeleteDC(hdcmem);
ReleaseDC(hwnd,hdc);
DeleteDC(hdc);
////////////////////////////////////////////////////////////////////////////////////////
void CCaptureDlg::SaveBmp()
{
CDC dc;
dc.CreateDC("DISPLAY",NULL,NULL,NULL);
CBitmap bm;
int Width=GetSystemMetrics(SM_CXSCREEN);
int Height=GetSystemMetrics(SM_CYSCREEN);
bm.CreateCompatibleBitmap(&dc,Width,Height);
CDC tdc;
tdc.CreateCompatibleDC(&dc);
CBitmap*pOld=tdc.SelectObject(&bm);
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY);
tdc.SelectObject(pOld);
BITMAP btm;
bm.GetBitmap(&btm);
DWORD size=btm.bmWidthBytes*btm.bmHeight;
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size);
/////////////////////////////////////////////
BITMAPINFOHEADER bih;
bih.biBitCount=btm.bmBitsPixel;
bih.biClrImportant=0;
bih.biClrUsed=0;
bih.biCompression=0;
bih.biHeight=btm.bmHeight;
bih.biPlanes=1;
bih.biSize=sizeof(BITMAPINFOHEADER);
bih.biSizeImage=size;
bih.biWidth=btm.bmWidth;
bih.biXPelsPerMeter=0;
bih.biYPelsPerMeter=0;
///////////////////////////////////
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS);
// bm.GetBitmapBits(size,lpData); //ｴﾋｺｯﾊﾔﾚｴｦﾀ・-5-5ﾄ｣ﾊｽｵﾄ16ﾎｻﾉｫﾏﾂｻ盖ﾖﾑﾕﾉｫｻ・ﾒ
//////////////////////////////
static int filecount=0;
CString name;
name.Format("pict%04d.bmp",filecount++);
name=m_Path+name;
BITMAPFILEHEADER bfh;
bfh.bfReserved1=bfh.bfReserved2=0;
bfh.bfType=((WORD)('M'<< 8)|'B');
bfh.bfSize=54+size;
bfh.bfOffBits=54;
CFile bf;
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){
  bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER));
  bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER));
  bf.WriteHuge(lpData,size);
  bf.Close();
  nCount++;
}
GlobalFreePtr(lpData);
if(nCount==1)
  m_Number.Format("%d picture captured.",nCount);
else
  m_Number.Format("%d pictures captured.",nCount);
UpdateData(FALSE);
}