sdi客户区画图.txt

vc使用技巧汇集

CXXView::OnDraw(CDC*pDC)
{
   CRect rect;
   GetClientRect(&rect);
   m_bitmap=new CBitmap();
   BITMAP bitmap;
   CDC *mdc=new CDC; // 定义内存DC指针
    m_bitmap->m_hObject=(HBITMAP)::LoadImage(NULL,"test.bmp",
                              IMAGE_BITMAP,0,0,LR_LOADFROMFILE);
                     // 加载位图
    mdc->CreateCompatibleDC(pDC); // 创建与pDC兼容的内存DC指针
    mdc->SelectObject(m_bitmap); 
    m_bitmap->GetObject(sizeof(BITMAP),&bitmap);
    int cxSource=bitmap.bmWidth;
    int cySource=bitmap.bmHeight;
    pDC->StretchBlt(0,0,rect.Width(),rect.Height(),mdc,0,0,cxSource,cySource,SRCCOPY);
}