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Disable Close Button (X) in console program

Posted on 2004-09-01
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Last Modified: 2007-12-19
Good afternoon!

How do I disable the min, max, and close buttons in a console program?  

Regards,
Tony
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Question by:fattumsdad
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by:jkr
ID: 11956108
You first need to obtain a window handle for your console: http://support.microsoft.com/default.aspx?scid=kb;en-us;124103 ("How To Obtain a Console Window Handle (HWND)")

Then, you need to get the system menu handle:

HWND hwndConsole = ...;

HMENU hMenu = GetSystemMenu ( hwndConsole, FALSE);

After that, you need to delete the Close Menu Item from the Console Application System Menu:

DeleteMenu ( hMenu, 6, MF_BYPOSISTION); // 'Close'

Also, the others:

DeleteMenu ( hMenu, 5, MF_BYPOSISTION); // 'Minimize'
DeleteMenu ( hMenu, 4, MF_BYPOSISTION); // 'Maximize'

This will affect the buttons also.

(adapted from http://support.microsoft.com/default.aspx?scid=kb;en-us;818361 -- "HOW TO: Disable the Close Button on the Title Bar of a Console Application by Using Microsoft Visual Basic .NET")

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Expert Comment

by:jkr
ID: 11956131
Um, MF_BYPOSISTION should of course be MF_BYPOSITION :-(
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Author Comment

by:fattumsdad
ID: 11956389
Jk,

This is what I have for code so far....

#include <windows.h>
#include <stdio.h>
#include <conio.h>

int main()
{
   TCHAR szOldTitle[MAX_PATH];
   TCHAR szNewTitle[MAX_PATH];

   if( GetConsoleTitle(szOldTitle, MAX_PATH) )
   {
      wsprintf(szNewTitle, TEXT("Testing"), szOldTitle);
        HMENU hMenu = GetSystemMenu ( hwndConsole, FALSE)
        DeleteMenu(hMenu, 6, MF_BYPOSITION);

      if( !SetConsoleTitle(szNewTitle) )
         printf("SetConsoleTitle failed (%d)\n", GetLastError());

      getch();
   }
}

The errors I get:
--------------------Configuration: Test - Debug--------------------
Compiling source file(s)...
Test.cpp
Test.cpp: In function `int main()':
Test.cpp:13: error: `hwndConsole' undeclared (first use this function)
Test.cpp:13: error: (Each undeclared identifier is reported only once for each
function it appears in.)
Test.cpp:14: error: syntax error before `(' token
Test.cpp:13: warning: unused variable `HMENU__*hMenu'

Test.exe - 3 error(s), 1 warning(s)
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Expert Comment

by:jkr
ID: 11956438
You need to use the code from the MSKB article above to retrieve the console's HWND, e.g.

#include <windows.h>
#include <stdio.h>
#include <conio.h>


HWND GetConsoleHwnd(void)
   {
       #define MY_BUFSIZE 1024 // Buffer size for console window titles.
       HWND hwndFound;         // This is what is returned to the caller.
       char pszNewWindowTitle[MY_BUFSIZE]; // Contains fabricated
                                           // WindowTitle.
       char pszOldWindowTitle[MY_BUFSIZE]; // Contains original
                                           // WindowTitle.

       // Fetch current window title.

       GetConsoleTitle(pszOldWindowTitle, MY_BUFSIZE);

       // Format a "unique" NewWindowTitle.

       wsprintf(pszNewWindowTitle,"%d/%d",
                   GetTickCount(),
                   GetCurrentProcessId());

       // Change current window title.

       SetConsoleTitle(pszNewWindowTitle);

       // Ensure window title has been updated.

       Sleep(40);

       // Look for NewWindowTitle.

       hwndFound=FindWindow(NULL, pszNewWindowTitle);

       // Restore original window title.

       SetConsoleTitle(pszOldWindowTitle);

       return(hwndFound);
   }

int main ()
{

    HWND hwndConsole = GetConsoleHwnd ();

      HMENU hMenu = GetSystemMenu ( hwndConsole, FALSE)
      DeleteMenu(hMenu, 6, MF_BYPOSITION);

    getch ();

    return 0;
}
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Author Comment

by:fattumsdad
ID: 11956503
Ok, I put the code in exactly as stated above.  Down to one error, one warning:

Compiling source file(s)...
Test.cpp
Test.cpp: In function `int main()':
Test.cpp:50: error: syntax error before `(' token
Test.cpp:49: warning: unused variable `HMENU__*hMenu'

Test.exe - 1 error(s), 1 warning(s)

I appreciate your patience....  I think you've walked me through a good 50 things over the past 2 days :)
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Accepted Solution

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jkr earned 500 total points
ID: 11956572
Sorry, there's a semicolon missing, that should be

    HMENU hMenu = GetSystemMenu ( hwndConsole, FALSE); // <---

BTW, you need to link with user32.lib

PS: That test just ruined one of my consoles :o)
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Author Comment

by:fattumsdad
ID: 11956588
Just added that semi, worked great.  How do I link with user32.lib?  Thanks again for all the help...  I really do appreciate it.  And sorry about the console LOL.
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Expert Comment

by:jkr
ID: 11956625
Well, if the linker does not complain about any missing symbols, you are already linking with that lib. I just compiled on the command line, so I had to add that manually...
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Author Comment

by:fattumsdad
ID: 11956729
Just curious....  how long have you been doing this stuff?
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LVL 86

Expert Comment

by:jkr
ID: 11956773
Earning my living with coding in C/C++ for well over 10 years now :o)
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Author Comment

by:fattumsdad
ID: 11956796
Well, that definitely shows.  I can't stress enough how much I appreciate the patience and help you've given!  Thanks again!  I'm sure I'll have another question in a couple hours or so LOL.
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