Disabling WM_Close

This is a discussion on Disabling WM_Close within the Windows Programming forums, part of the Platform Specific Boards category; Hi, first i would like to thank everyone who helped me solve my compiler problem. Second, i would like to ...

  1. #1
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    Disabling WM_Close

    Hi, first i would like to thank everyone who helped me solve my compiler problem. Second, i would like to know how to disable closing the dialog box by pressing the X (close icon). I know that when i select how to handle WM_Close is when to disable it, but i'm wondering how. If i ignore it will it just do the default and close the program? Thanks in advance for your help.

  2. #2
    Pygmy Monkey ErionD's Avatar
    Join Date
    Feb 2002
    Posts
    408
    just do

    case WM_CLOSE:
    return TRUE;
    break;


    or something like that

  3. #3
    Registered User WayTooHigh's Avatar
    Join Date
    Aug 2001
    Posts
    101
    this should work! dont process WM_CLOSE in WndProc. the only problem is your program wont close unless use a menu item or something.
    Code:
    LRESULT CALLBACK WndProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
    {
    	switch(Message)
    	{
    	case WM_COMMAND:
    		switch(LOWORD(wParam))
    		{
    		// menu item
    		case IDM_EXIT:
    			DestroyWindow(hwnd);
    			PostQuitMessage(0);
    
    			break;
    		}
    		
    		return TRUE;
    
    	// try doing this for your default
    	default:
    		if(Message != WM_CLOSE)
    		{
    			return DefWindowProc(hwnd, Message, wParam, lParam);
    		}
    	}
    	return 0;
    }
    Sometimes, the farthest point from the center is the center itself.

    Your life is your canvas, it's only as beautiful as you paint it.

  4. #4
    Programming is fun, mkay?
    Join Date
    Oct 2001
    Posts
    490

    Lightbulb It's simple!

    In your WndProc, just add this to your WM_CREATE:

    SetWindowLong(hwnd, GCL_STYLE, CS_NOCLOSE);
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  5. #5
    ¡Amo fútbol!
    Join Date
    Dec 2001
    Posts
    2,136
    Why would you want to disable closing.

  6. #6
    Unregistered
    Guest
    i want to disable it because i'm creating a login program, i want the only way for the dialog to be closed is through normal termination, ie:entering the correct password and clicking ok.

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