VC6里面这样加载位图有错么？？？

MrByte 2014-05-01 06:33:25

#include <AFXWIN.H>

#include "resource.h"

LRESULT CALLBACK WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);

int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd ){

	WNDCLASS wnd;

	wnd.cbClsExtra=0;

	wnd.cbWndExtra=0;

	wnd.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);

	wnd.hCursor=LoadCursor(hInstance,(LPCTSTR)IDC_CURSOR2);

	wnd.hIcon=LoadIcon(hInstance,IDI_APPLICATION);

	wnd.hInstance=hInstance;

	wnd.lpfnWndProc=WndProc;

	wnd.lpszClassName="window";

	wnd.lpszMenuName=NULL;

	wnd.style=CS_HREDRAW|CS_VREDRAW;



	RegisterClass(&wnd);



	HWND hwnd;

	hwnd=CreateWindow("window","MyWindow",WS_OVERLAPPEDWINDOW,100,100,400,300,NULL,NULL,hInstance,NULL);



	ShowWindow(hwnd,nShowCmd);



	MSG msg;

	while(GetMessage(&msg,NULL,0,0)){

		TranslateMessage(&msg);

		DispatchMessage(&msg);

	}

	return 0;

}

LRESULT CALLBACK WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam){

	HDC hdc;

	PAINTSTRUCT ps;

	HDC MemDC;

	HBITMAP bmp=LoadBitmap(NULL,(LPCSTR)IDB_BITMAP1);

	RECT r={10,10,500,500};



	switch(uMsg){

	case WM_DESTROY:

		PostQuitMessage(0);

		break;

	case WM_PAINT:

		hdc=BeginPaint(hwnd,&ps);//设备描述表

			MemDC=CreateCompatibleDC(hdc);//内存DC

				CreateCompatibleBitmap(MemDC,500,500);

				SelectObject(MemDC,bmp);//在内存DC内加载位图

				BitBlt(hdc,10,10,400,400,MemDC,0,0,SRCCOPY);

			DeleteDC(MemDC);

		EndPaint(hwnd,&ps);

		break;

	}

	return DefWindowProc(hwnd,uMsg,wParam,lParam);

}