我要显示一个图片，但是不能显示．
代码如下
CPaintDC dc(this); // device context for painting

RECT rect;
CDC*md=new CDC; //建立一暂存DC md
CBitmap*bitmap=new CBitmap;//建立位图对象

GetClientRect(&rect);//取得操作窗口大小
md->CreateCompatibleDC(&dc);//将md转换成与dc兼容的dc
bitmap->m_hObject=(HBITMAP)::LoadImage(NULL,"幽潭.bmp",IMAGE_BITMAP,rect.right,rect.bottom,LR_LOADFROMFILE);
md->SelectObject(bitmap);//加载位图
dc.BitBlt(0,0,rect.right,rect.bottom,md,0,0,SRCCOPY);
delete md;//释放资源
delete bitmap;//释放资源

不在OPaint消息中试试看，重载OnEraseBkgnd()消息,然后用
CDC * pdc=GetDC();

CDC dc;
dc->CreateCompatibleDC(pdc);
dc->SelectObject(bitmap);

pdc->BitBlt(0,0,rect.Width(),rect.Height(),&dc,0,0,SRCCOPY);

//构造函数
*md = new CDC; //建立一暂存DC md
*bitmap = new CBitmap;//建立位图对象
md->CreateCompatibleDC( &dc );//将md转换成与dc兼容的dc
bitmap->m_hObject = (HBITMAP)::LoadImage(NULL,"幽潭.bmp",IMAGE_BITMAP,rect.right,rect.bottom,LR_LOADFROMFILE);
md->SelectObject( bitmap );//加载位图

// OnPaint()
RECT rect;
GetClientRect( &rect )
dc.BitBlt(0,0,rect.right,rect.bottom,md,0,0,SRCCOPY);

//析构函数
delete md;
delete bitmap;
这样试一下?

为什么没有完整的程序呢？？？？？？？？？？？？？//