MFC如何从外部导入图片

Question

不用加入资源的`我想连到外部的图片`例如同一目录下的ren/bg.jpg
将这张图显示为背景`怎么做`代码看看

Answer 1

怎么学GDI呀`不会啊`我是慢慢摸索的`好难啊`高手啊`给我段代码我打上了能工作`我研究代码更方便啊`给个函数我还不会用啊`参数看不懂msdn`
就是debug同目录下有个ren/bg.jpg

Answer 2

BOOL CMyListView::ShowJpg(CDC* pDC,CString strPath, int x, int y){
     IStream *pStm;  
     CFileStatus fstatus;  
     CFile file;  
     LONG cb;      //打开文件并检测文件的有效性
    if (file.Open(strPath,CFile::modeRead)&&
         file.GetStatus(strPath,fstatus)&& 
         ((cb = fstatus.m_size) != -1))  
     {  
HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE, cb);  
        LPVOID pvData = NULL;  
        if (hGlobal != NULL)  
         {  
pvData = GlobalLock(hGlobal);
            if (pvData != NULL)  
             {  
file.ReadHuge(pvData, cb);  //6.0中可能是用这个函数
                 //file.Read(pvData, cb);  //VC2005.NET中用这个函数
                GlobalUnlock(hGlobal);  
                CreateStreamOnHGlobal(hGlobal, TRUE, &pStm);  
             } 
         }      }
    else
     {
        return false;
     } //打开文件结束
    IPicture *pPic; 
    if(SUCCEEDED(OleLoadPicture(pStm,fstatus.m_size,TRUE,IID_IPicture,(LPVOID*)&pPic))) 
     { 
         OLE_XSIZE_HIMETRIC hmWidth;  
         OLE_YSIZE_HIMETRIC hmHeight;  
         pPic->get_Width(&hmWidth);  
         pPic->get_Height(&hmHeight);  
         double fX,fY;           fX = (double)pDC->GetDeviceCaps(HORZRES)*(double)hmWidth/((double)pDC->GetDeviceCaps(HORZSIZE)*100.0);  
         fY = (double)pDC->GetDeviceCaps(VERTRES)*(double)hmHeight/((double)pDC->GetDeviceCaps(VERTSIZE)*100.0);  
         if(FAILED(pPic->Render(*pDC,x,y,(DWORD)fX,(DWORD)fY,0,hmHeight,hmWidth,-hmHeight,NULL)))  
         {
             pPic->Release();
 pStm->Release();
 return false;
         }
         pPic->Release();  
 pStm->Release();
     }  
    else  
     {
        return false;  
     }    return true;
}