MY CODE :

[public]

Cdialog :button1:
void CTimeDlg::OnButton1()
{
// TODO: Add your control notification handler code here
CClientDC dc(this);
CBitmap b1;
HBITMAP hb = (HBITMAP)::LoadImage(AfxGetApp()->m_hInstance,"E:\\mywork\\DispCtrMenu\\3.bmp",
IMAGE_BITMAP,0,0,LR_DEFAULTCOLOR|LR_LOADFROMFILE);

// HBITMAP hb = (HBITMAP)::LoadImage(AfxGetApp()->m_hInstance,"E:\\mywork\\DispCtrMenu\\3.bmp",
// IMAGE_BITMAP,0,0,LR_DEFAULTCOLOR|LR_LOADFROMFILE);
// HBITMAP hb = (HBITMAP)::LoadImage(AfxGetApp()->m_hInstance,"C:\\Documents and Settings\\Administrator\\My Documents\\4.bmp",
// IMAGE_BITMAP,0,0,LR_DEFAULTCOLOR|LR_LOADFROMFILE);
HBITMAP hbmpold;
CRect ret;
ret.top=10;
ret.left=10;
CDC dcmem;
b1.Attach(NULL);
BITMAP pbmp;
b1.GetBitmap(&pbmp);
dcmem.CreateCompatibleDC(&dc);
hbmpold=(HBITMAP)dcmem.SelectObject(hb);
GetDC()->StretchBlt(ret.left,ret.top,800,800,&dcmem,0,0,pbmp.bmWidth,pbmp.bmHeight,SRCCOPY);
dcmem.SelectObject(hbmpold);
}

[突击召唤师]

这是干啥？

[public]

和我上个贴子相联系，它本身没什么关系

[public]

和我上个贴子相联系，它本身没什么意义！！

[public]

http://www.csdn.net/expert/topic/489/489229.shtm

[black_fox]

HBITMAP hb = (HBITMAP)::LoadImage(AfxGetApp()->m_hInstance,"E:\\mywork\\DispCtrMenu\\3.bmp",
IMAGE_BITMAP,0,0,LR_DEFAULTCOLOR¦LR_LOADFROMFILE)建议改成

HBITMAP hb = (HBITMAP)::LoadImage(NULL,"E:\\mywork\\DispCtrMenu\\3.bmp",
IMAGE_BITMAP,0,0,LR_DEFAULTCOLOR¦LR_LOADFROMFILE)

b1.Attach(NULL);
BITMAP pbmp;
b1.GetBitmap(&pbmp);
这一行肯定是会出错的。。pbmp不会空。
int GetBitmap( BITMAP* pBitMap );
Return Value
Nonzero if successful; otherwise 0.
Parameters
pBitMap
Pointer to a BITMAP structure. Must not be NULL
另外，你要将一个位图放到一个CBitmap中。为什么不用CBitmap::LoadBitmap.

[public]

是我的问题有问题。我已高定。谢谢大家帮助！！