mfc close message

[mesman00]

i'm using mfc. what is the message sent by the window when the close button in clicked. in the regular win api it's WM_CLOSE, but it's apparently differently in mfc. i tried including

ON_COMMAND(WM_CLOSE, OnClose)

in my message map, but to no avail. thanks.

 

[zenogais]

You always have the ability to override this method, but to that you need to override it in the class definition. Here's an example from my emulator:

NeoMain.h:

class NeoMain : public CFrameWnd
{
public:
	NeoMain();
protected:
	int  OnCreate(LPCREATESTRUCT lpCreateStruct);
	void OnClose();

	std::string m_strVersion; ///< String dictating the current NeoPSX verison.

	DECLARE_MESSAGE_MAP();
};

NeoMain.cpp:

....................
void NeoMain::OnClose()
{
	//===================================================
	// Handling Resource Destruction And Destroy Window
	//===================================================
	DestroyWindow();
}
.......................

Hope this will help you.

 

[mesman00]

yah i tried to overload the method, didn't work. this is my code:

CMainWin.h

#include <afxwin.h>		//main mfc lib
#include <afxdlgs.h>	//for file dialogs
#include <CString>
#include <string>
#include "DCMconvert.h"
#include "mainMenu.h"
#include "CWebView.h"

using namespace std;

#define IDF_OpenDialog 301
#define IDS_Label 401

// Declare the main window class
class CMainWin : public CFrameWnd
{
	private:
		
		CWebView *webView;
		CStatic *label;
		CFileDialog *openDialog;
		CFileDialog *saveDialog;
		DCMconvert convert;
		CString fileExt;
		CString fileName;
		CString filePath;
		CString savePath;
		string htmlFilePath;
		string xmlFilePath;
		string txtFilePath;
		string currentView;
		bool fileLoaded;
	
	public:

		CMainWin();
		//~CMainWin();

		afx_msg void OnItemFileLoad();
		afx_msg void OnItemFileSaveAs();
		afx_msg void OnItemFilePrint();
		afx_msg void OnItemFileExit();
		afx_msg void OnItemViewHTML();
		afx_msg void OnItemViewXML();
		afx_msg void OnItemViewTXT();
		afx_msg void OnItemHelpAbout();
		void OnClose();
		
		DECLARE_MESSAGE_MAP()
};

and here is the implementation in CMainWin.cpp

void CMainWin::OnClose()
{
	MessageBox("test", "", MB_OK);
}

when i hit the x button the message box never comes up. do i need to add something tot he message map as well? thanks.

 

[Doomulation]

You're doing it wrong afaik
ON_WM_CLOSE() is the one you're looking for. MFC simply wraps windows API, it doesn't change it. WM_CLOSE is sent to your window, it is.

You can also use spy++ to monitor sent messages to your windows.

 

[mesman00]

You're doing it wrong afaik
ON_WM_CLOSE() is the one you're looking for. MFC simply wraps windows API, it doesn't change it. WM_CLOSE is sent to your window, it is.

You can also use spy++ to monitor sent messages to your windows.

ON_WM_CLOSE is not a method, unless its in another library other than CFrameWnd.

 

[zenogais]

ON_WM_CLOSE is not a method, unless its in another library other than CFrameWnd.

Its a macro, you add it in between your BEGIN_MESSAGE_MAP() END_MESSAGE_MAP() sequence.

 

[Doomulation]

Its a macro, you add it in between your BEGIN_MESSAGE_MAP() END_MESSAGE_MAP() sequence.

zenogais is correct
Shame on you for not understanding that :evil:

Now have phun programming =)

 

[mesman00]

zenogais is correct
Shame on you for not understanding that :evil:

Now have phun programming =)

doh!