在VC中将客户区图像保存到BMP位图文件

Question

在VC中将客户区图像保存到BMP位图文件
  或者jpg文件  
只要能保存为图象格式就行？
  在vc6.0中怎么写啊？？？？

Answer 1

www.vckbase.net上有这样的例子代码.

Answer 2

void SaveBmp(HBITMAP hbmp, LPCTSTR sIconFileName)
{
if(hbmp==NULL || sIconFileName==NULL)
return;
//warning: this code snippet is not bullet proof.
//do error check by yourself [masterz]
PICTDESC picdesc;
picdesc.cbSizeofstruct = sizeof(PICTDESC);
picdesc.picType = PICTYPE_BITMAP ;    
picdesc.bmp.hpal = NULL;
picdesc.bmp.hbitmap = hbmp;
IPicture* pPicture=NULL;
OleCreatePictureIndirect(&picdesc, IID_IPicture, TRUE,(VOID**)&pPicture);
LPSTREAM pStream;
CreateStreamOnHGlobal(NULL,TRUE,&pStream);
LONG size;
HRESULT hr=pPicture->SaveAsFile(pStream,TRUE,&size);
char pathbuf[1024];
strcpy(pathbuf,sIconFileName);
CFile iconfile;
iconfile.Open(pathbuf, CFile::modeCreate|CFile::modeWrite);
LARGE_INTEGER li;
li.HighPart =0;
li.LowPart =0;
ULARGE_INTEGER ulnewpos;
pStream->Seek( li,STREAM_SEEK_SET,&ulnewpos);
ULONG uReadCount = 1;
while(uReadCount>0)
{ pStream->Read(pathbuf,sizeof(pathbuf),&uReadCount);
if(uReadCount>0)
iconfile.Write(pathbuf,uReadCount);
}
pStream->Release();
iconfile.Close();
}void CsaveviewView::OnSaveview()
{
CClientDC dc(this);
CDC dcmem;
dcmem.CreateCompatibleDC(&dc);
CBitmap bmp;
CRect rc;
GetClientRect(&rc);
bmp.CreateCompatibleBitmap(&dc,rc.Width(),rc.Height());
dcmem.SelectObject(&bmp);
dcmem.BitBlt(0,0,rc.Width(),rc.Height(),&dc,0,0,SRCCOPY);
SaveBmp(bmp,"c:\\a.bmp");
}