DestroyWindow(); wont destroy the window?

This is a discussion on DestroyWindow(); wont destroy the window? within the Windows Programming forums, part of the Platform Specific Boards category; first my code: Code: case WM_COMMAND: WORD wID,wNotify; wID=LOWORD(wparam); wNotify=HIWORD(wparam); case BN_CLICKED: if(wID == 90) { WNDCLASS bw; HINSTANCE hInst; ...

  1. #1
    The Right Honourable psychopath's Avatar
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    DestroyWindow(); wont destroy the window?

    first my code:
    Code:
    case WM_COMMAND:
    WORD wID,wNotify;
    
    wID=LOWORD(wparam);
    wNotify=HIWORD(wparam);
    
    case BN_CLICKED:
    if(wID == 90)
    {
    WNDCLASS bw;
    HINSTANCE hInst;
    // register brush insert window class
    memset(&bw,0,sizeof(WNDCLASS));
    bw.style = CS_OWNDC;
    bw.lpfnWndProc = (WNDPROC)WndProc;
    bw.cbClsExtra = 0;
    bw.cbWndExtra = 0;
    bw.hInstance = hInst;
    bw.hIcon = LoadIcon( NULL, IDI_APPLICATION );
    bw.hCursor = LoadCursor( NULL, IDC_ARROW );
    bw.hbrBackground = (HBRUSH)GetStockObject( LTGRAY_BRUSH );
    bw.lpszMenuName = NULL;
    bw.lpszClassName = "BrushWin";
    if (RegisterClass( &bw ))
    {
    HWND BrushWin;
    HWND button;
    BrushWin = CreateWindow( 
    "BrushWin", "", 
    WS_CHILD | WS_POPUP | WS_VISIBLE | WS_CAPTION,
    100, 100, 400, 300,
    hWnd, NULL, hInst, NULL );
    
    button = CreateWindow("BUTTON", "Cancel", WS_VISIBLE | WS_CHILD | BS_PUSHBUTTON, 330, 246, 64, 24, BrushWin,(HMENU) 210, (HINSTANCE) GetWindowLong(hWnd, GWL_HINSTANCE), NULL);
    if(wID == 210)
    {
    DestroyWindow(BrushWin);
    }
    }
    
    }
    return 0;
    break;
    anyway....when that button is pressed, the specified window will not close.

    any help will be greatly appreciated

    -psychopath

  2. #2
    erstwhile
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    Code:
    case BN_CLICKED:
    if(wID == 90)
      {
      if (wID==210) 
        {
        /*never reached */
        }
      }
    Using some sort of indentation scheme in your code would probably help you identify problems of this nature.
    CProgramming FAQ
    Caution: this person may be a carrier of the misinformation virus.

  3. #3
    The Right Honourable psychopath's Avatar
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    Code:
    case WM_COMMAND:
    	WORD wID,wNotify;
    	
    	wID=LOWORD(wparam);
    	wNotify=HIWORD(wparam);
    	
    case BN_CLICKED:
    	if(wID == 90)
    	{
    		WNDCLASS bw;
    		HINSTANCE hInst;
    		// register brush insert window class
    		memset(&bw,0,sizeof(WNDCLASS));
    		bw.style = CS_OWNDC;
    		bw.lpfnWndProc = (WNDPROC)WndProc;
    		bw.cbClsExtra = 0;
    		bw.cbWndExtra = 0;
    		bw.hInstance = hInst;
    		bw.hIcon = LoadIcon( NULL, IDI_APPLICATION );
    		bw.hCursor = LoadCursor( NULL, IDC_ARROW );
    		bw.hbrBackground = (HBRUSH)GetStockObject( LTGRAY_BRUSH );
    		bw.lpszMenuName = NULL;
    		bw.lpszClassName = "BrushWin";
    		if (RegisterClass( &bw ))
    		{
    			HWND BrushWin;
    			HWND button;
    			BrushWin = CreateWindow( 
    				"BrushWin", "", 
    				WS_CHILD | WS_POPUP | WS_VISIBLE | WS_CAPTION,
    				100, 100, 400, 300,
    				hWnd, NULL, hInst, NULL );
    			
    			// x = 270 if BrushWin style = 'WS_DLGFRAME'
    			button = CreateWindow("BUTTON", "Cancel", WS_VISIBLE | WS_CHILD | BS_PUSHBUTTON, 330, 246, 64, 24, BrushWin,(HMENU) 210, (HINSTANCE) GetWindowLong(hWnd, GWL_HINSTANCE), NULL);
    			if(wID == 210)
    			{
    				DestroyWindow(BrushWin);
    			}
    		}
    		
    	}
    	break;
    ok....now then....does anybody have any idea as to what might be the problem?

    -psychopath

  4. #4
    Registered User Codeplug's Avatar
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    Ken does........study his post a little harder.

    Spock would roll-over in his grave....

    gg

  5. #5
    The Right Honourable psychopath's Avatar
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    o...oops....sorry...

    >>case BN_CLICKED:
    if(wID == 90)
    {
    if (wID==210)
    {
    /*never reached */
    }
    }<<

    how is it 'never reached'?

    -psychopath

  6. #6
    Registered User Codeplug's Avatar
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    Stop drinking Mellow-Yellow's and get some sleep!!!

    Then tell me why the following code will never print "Hello World".
    Code:
    int X = 42;
    
    if (X == 42)
    {
        if (X == 69)
        {
            puts("Hello World");
        }
    }
    gg

  7. #7
    The Right Honourable psychopath's Avatar
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    ok...tho i still havn't gotten much sleep (and i still love mellow-yellow :P), i'm going to make an attempt at logical thinking (and in the end i'll still be wrong).

    in the code you showed above, 'hello world' is only displayed on the condition that X = 69.
    But X can only = 69 if X = 42, which means X will never = 69?

    -psychopath

  8. #8
    Registered User Codeplug's Avatar
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    Correct.

    gg

  9. #9
    The Right Honourable psychopath's Avatar
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    so what if it looked like:

    Code:
    int X = 42;
    
    if (X == 42)
    {
        DoSomthing();
    }
    
    if (X == 69)
    {
        puts("Hello World");
    }
    would this work...if not what would?

    -psychopath

  10. #10
    Registered User Codeplug's Avatar
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    Your code has several other logic and programming errors. I would suggest that you get a good handle on C/C++ programming as a language before attempting Windows programming using those languages.

    gg

  11. #11
    The Right Honourable psychopath's Avatar
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    yes...but in order to have a good understanding of anything, you must first learn from your mistakes. Now I obviously made a mistake, but i don't exactly what it is or how to fix it, so therefore I can't learn from it now can I?

    -psychopath

  12. #12
    Registered User
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    Aww.. for fu*** sake. This is simpliest logical "problem" I can think of. But it does require one to be awake and not drunk...
    Code:
    case WM_COMMAND:
      WORD wID,wNotify;
    
      wID=LOWORD(wparam);
      wNotify=HIWORD(wparam);
    
      switch (wNotify)
      {
      case BN_CLICKED:
        if(wID == 90)
        {
          WNDCLASS bw;
          HINSTANCE hInst;
          // Blah Blah Blah
          if (RegisterClass( &bw ))
          {
            HWND BrushWin;
            HWND button;
            BrushWin = CreateWindow("BrushWin", "",
              WS_CHILD | WS_POPUP | WS_VISIBLE | WS_CAPTION,
              100, 100, 400, 300, hWnd, NULL, hInst, NULL );
            // x = 270 if BrushWin style = 'WS_DLGFRAME'
            button = CreateWindow("BUTTON", "Cancel",
              WS_VISIBLE | WS_CHILD | BS_PUSHBUTTON,
              330, 246, 64, 24, BrushWin,(HMENU) 210,
              (HINSTANCE)GetWindowLong(hWnd, GWL_HINSTANCE), NULL);
          }
        }
        else if(wID == 210)
        {
          DestroyWindow(BrushWin);
        }
        break;
      }

  13. #13
    The Right Honourable psychopath's Avatar
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    wow...it still doesn't work

    my code:
    Code:
    case WM_COMMAND:
    			WORD wID, wNotify;
    			wID=LOWORD(wparam);
    			wNotify=HIWORD(wparam);
    
    			HWND BrushWin;
    			HWND button;
    							
    			switch (wNotify)
    			{
    			case BN_CLICKED:
    			if(wID == 90)
    			{
    				WNDCLASS bw;
    				HINSTANCE hInst;
    				// register brush insert window class
    				memset(&bw,0,sizeof(WNDCLASS));
    				bw.style = CS_OWNDC;
    				bw.lpfnWndProc = (WNDPROC)WndProc;
    				bw.cbClsExtra = 0;
    				bw.cbWndExtra = 0;
    				bw.hInstance = hInst;
    				bw.hIcon = LoadIcon( NULL, IDI_APPLICATION );
    				bw.hCursor = LoadCursor( NULL, IDC_ARROW );
    				bw.hbrBackground = (HBRUSH)GetStockObject( LTGRAY_BRUSH );
    				bw.lpszMenuName = NULL;
    				bw.lpszClassName = "BrushWin";
    				if (RegisterClass( &bw ))
    				{
    					BrushWin = CreateWindow( 
    						"BrushWin", "", 
    						WS_CHILD | WS_POPUP | WS_VISIBLE | WS_CAPTION,
    						100, 100, 400, 300,
    						hWnd, NULL, hInst, NULL );
    					
    					// x = 270 if BrushWin style = 'WS_DLGFRAME'
    					button = CreateWindow("BUTTON", "Cancel",
    						WS_VISIBLE | WS_CHILD | BS_PUSHBUTTON,
    						330, 246, 64, 24,
    						BrushWin,(HMENU) 210, (HINSTANCE) GetWindowLong(hWnd, GWL_HINSTANCE), NULL);
    				}
    			}
    			else if(wID == 210)
    			{
    				DestroyWindow(BrushWin);
    			}
    			break;
    			}

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