```c++ void CCBitmapDlg::OnPaint() { CPaintDC dc(this); // 用于繪制的設備上下文 CBitmap bmp; bmp.LoadBitmap(IDB_WOLF);//位圖平鋪 加載 bmp格式的圖片 BITMAP bm;//定義一個空的位圖信息結構體 bmp.GetBitmap(&bm);//獲取位圖信息 把值賦值到bm CDC mdc;//CMenDc CClientDC CPaintDC CWindowDC mdc.CreateCompatibleDC(&dc);//代入一個DC模板 mdc.SelectObject(&bmp);//選擇位圖 dc.SetStretchBltMode(HALFTONE); dc.StretchBlt(10,10,bm.bmHeight * 20, bm.bmHeight * 2, &mdc, 0,0,bm.bmWidth,bm.bmHeight,SRCCOPY);//拉伸/壓縮 dc.BitBlt(20,20,280,210,&mdc, 0,0,SRCCOPY);//mdc來源DC 位圖輸出函數 dc.BitBlt(bm.bmWidth + 30,bm.bmHeight + 30, bm.bmWidth*2/3,bm.bmHeight*2/3,&mdc, bm.bmWidth/3,bm.bmHeight/3,SRCCOPY); // dc.StretchBlt(10,bm.bmHeight/2 + 30, bm.bmWidth / 2, bm.bmHeight / 2, &mdc, 0,0,bm.bmWidth,bm.bmHeight,SRCCOPY);//拉伸/壓縮 dc.StretchBlt(bm.bmWidth + 30,bm.bmHeight + 10, bm.bmWidth / 2, bm.bmHeight / 2, &mdc, bm.bmWidth,0,-bm.bmWidth,bm.bmHeight,SRCCOPY);//翻轉 dc.StretchBlt(bm.bmWidth + 30,bm.bmHeight + 10, bm.bmWidth / 2, bm.bmHeight / 2, &mdc, bm.bmWidth,0,-bm.bmWidth,bm.bmHeight,SRCCOPY);//翻轉 HBITMAP hBitmap = bmp; CBitmap* pBitmap = CBitmap::FromHandle(hBitmap); } ```