MFC构建一个带背景图片的窗口

最新推荐文章于 2020-12-04 02:27:40 发布

xyzqiang

最新推荐文章于 2020-12-04 02:27:40 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/xyzqiang/article/details/5185278

本文档展示了如何在MFC应用程序中创建一个带有背景图片的窗口。通过继承CWinApp和CFrameWnd类，实现了在窗口加载时加载图片，并在`OnEraseBkgnd`事件中设置背景图片。

//GameApp.h

#pragma once
#include "afxwin.h"

class CGameApp :public CWinApp
{
public:
CGameApp(void);
public:
~CGameApp(void);

BOOL InitInstance();
};

//GameApp.cpp

#include "GameApp.h"
#include "GameWnd.h"

CGameApp theApp;

CGameApp::CGameApp(void)
{

}

CGameApp::~CGameApp(void)
{
}

BOOL CGameApp::InitInstance()
{
m_pMainWnd = new CGameWnd;
m_pMainWnd->ShowWindow(SW_NORMAL);
m_pMainWnd->UpdateWindow();

return true;
}

//GameWnd.h

class CGameWnd :public CFrameWnd
{
public:
CGameWnd(void);
public:
~CGameWnd(void);

}

//GameWnd.cpp

#include "GameWnd.h"

CGameWnd::CGameWnd(void)
{
Create(NULL,L"测试窗口",WS_OVERLAPPEDWINDOW);

m_Bitmap = new CBitmap;
m_Bitmap->m_hObject = LoadImageW(NULL,L"Winter.bmp",IMAGE_BITMAP,800,600,LR_LOADFROMFILE);

mdc = new CDC;
CClientDC cdc(this);

mdc->CreateCompatibleDC(&cdc);
mdc->SelectObject(m_Bitmap);

}

BOOL CGameWnd::OnEraseBkgnd(CDC* pDC)
{

pDC->BitBlt(0,0,800,600,mdc,0,0,SRCCOPY);
CRect rect;
GetClientRect(rect);
pDC->StretchBlt(0,0,rect.Width(),rect.Height(),mdc,0,0,800,600,SRCCOPY);
return true;
}