自定义消息

http://msdn.microsoft.com/en-us/library/k35k2bfs(v=VS.90).aspx

 

 

/************************************************************************/
/* mywnd.h                                                                     */
/************************************************************************/
#ifndef MYWND_H
#define MYWND_H

#include <afxwin.h>

class MyWnd : public CFrameWnd
{
public:
    MyWnd();
    const static unsigned short WM_MYMSG;
    DECLARE_MESSAGE_MAP()

    afx_msg LRESULT showMsg(WPARAM, LPARAM);
    afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
};

#endif

 

/************************************************************************/
/* myapp.h                                                                     */
/************************************************************************/
#ifndef MYAPP_H
#define MYAPP_H

#include <afxwin.h>

class MyApp : public CWinApp
{
public:
    virtual BOOL InitInstance();
    DECLARE_MESSAGE_MAP()
};
#endif

 

/************************************************************************/
/* mywnd.cpp                                                                     */
/************************************************************************/
#include "mywnd.h"

BEGIN_MESSAGE_MAP(MyWnd, CFrameWnd)
    ON_MESSAGE(MyWnd::WM_MYMSG, &MyWnd::showMsg)
    ON_WM_LBUTTONDOWN()
END_MESSAGE_MAP()

const unsigned short MyWnd::WM_MYMSG = WM_USER + 1;

MyWnd::MyWnd()
{
    Create(NULL, _T("MyWnd"));
}

LRESULT MyWnd::showMsg(WPARAM wParam, LPARAM lParam)
{
    UNREFERENCED_PARAMETER(wParam);
    UNREFERENCED_PARAMETER(lParam);
    MessageBox(_T("Hello, My Message!!!"));
    return (LRESULT)0;
}
void MyWnd::OnLButtonDown(UINT nFlags, CPoint point)
{
    // TODO: 在此添加消息处理程序代码和/或调用默认值
    ::PostMessage(m_hWnd, WM_MYMSG, 0, 0);
    CFrameWnd::OnLButtonDown(nFlags, point);
}

 

/************************************************************************/
/* myapp.cpp                                                                     */
/************************************************************************/
#include "myapp.h"
#include "mywnd.h"

BEGIN_MESSAGE_MAP(MyApp, CWinApp)
END_MESSAGE_MAP()

MyApp theApp;

BOOL MyApp::InitInstance()
{
    m_pMainWnd = new MyWnd();
    m_pMainWnd->ShowWindow(m_nCmdShow);    
    m_pMainWnd->UpdateWindow();
    return TRUE;
}