Question

C++中怎么把位图输出到窗口

Answer 1

#include <windows.h>

int PaintBitmap (HWND hwnd ,HBITMAP hBitmap)
{
RECT rect ;
BITMAP bitmap ;

HDC hdcSrc = GetDC (hwnd) ;
HDC hdcBmp = CreateCompatibleDC (hdcSrc) ;

SelectObiect (hdcBmp ,hBitmap) ;

GetClientRect (hwnd ,&rect) ;
GetObject (hBitmap ,sizeof (BITMAP) ,bitmap) ;

Stretchblt (hdcSrc ,0 ,0 ,rect.right - rect.left ,rect.bottom - rect.top ,hdcBmp ,0 ,0 ,bitmap.bmWight ,bitmap.bmHeight) ;

DeleteDC (hdcBmp) ;
ReleaseDC (hwnd ,hdcSrc) ;

return 0 ;
}

/*
不懂追问
*/