[Q]Dos in fullscreen

This is a discussion on [Q]Dos in fullscreen within the C++ Programming forums, part of the General Programming Boards category; Hi. I have a (simple) question: is there a command or something that if you execute your program (*.exe file) ...

  1. #1
    Banned Yuri's Avatar
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    [Q]Win32 Console in fullscreen

    Hi.
    I have a (simple) question: is there a command or something that if you execute your program (*.exe file) that it opends it in full DOS screen, so that your cursor is some sort of little white block? So, a command that you can use in your source, that the program (if you execute it (by dubble clikking on it)) automaticly opens a fullscreen?
    Last edited by Yuri; 08-12-2005 at 06:27 AM.

  2. #2
    Registered User major_small's Avatar
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    not anything standard... and it's not a DOS screen - it's actually a Win32 Console. The difference is that DOS is a (mostly) dead operating system, whereas a console is another method of access the OS allows a user or program. what you're using could also be called an operating system shell

    one way you can do it: while you're program's running, go to options and choose fullscreen. there's also something in there that asks if you want to modify the source program. if you do so, every time you run the program, windows will give it a full-screen console.

    note that that only works on the system it was changed on.
    Last edited by major_small; 08-11-2005 at 09:24 AM. Reason: more.
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  3. #3
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    i dont know how you could do it with source code,
    but you can do it by pressing Alt-Enter, give them the option
    to do that?

    that is assumming you mean the command prompt, because
    dos would be an operating system on its on and last time i
    seen dos it already took the full screen.

  4. #4
    Banned Yuri's Avatar
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    Yeah I mean the Win32 Console, I know how to choose the option fullscreen but I wanted to know how you can do it in the source, so that when you (compile and) run, that it automaticly opens in a fullscreen Win32 Console. So... is there a command for, just like... ehh... system("cls"); and then something like: system("ofs"); (open fullscreen, :P), thanks anyway.
    Last edited by Yuri; 08-11-2005 at 10:07 AM.

  5. #5
    Registered User Codeplug's Avatar
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    Code:
    // Simulate ALT-ENTER keystrokes
    void AltEnter()
    {
        // NOTE: This method only works if the console window has the keyboard 
        //       focus and the user isn't hitting keys on the keyboard.
        SetForegroundWindow(GetConsoleWindow()); 
        keybd_event(VK_MENU, MapVirtualKey(VK_MENU, 0), 0, 0); 
        keybd_event(VK_RETURN, MapVirtualKey(VK_RETURN, 0), 0, 0); 
        keybd_event(VK_RETURN, MapVirtualKey(VK_RETURN, 0), KEYEVENTF_KEYUP, 0); 
        keybd_event(VK_MENU, MapVirtualKey(VK_MENU, 0), KEYEVENTF_KEYUP, 0); 
    }//AltEnter
    If you're running on an NT based verison of Windows, here is the best way to do it:
    Code:
    /*-----------------------------------------------------------------------------
    NT_SetConsoleDisplayMode - Set the console display to fullscreen or windowed.
    
    Parameters:
        hOutputHandle - Output handle of cosole, usually 
                            "GetStdHandle(STD_OUTPUT_HANDLE)"
        dwNewMode - 0=windowed, 1=fullscreen
    
    Returns Values: 
        TRUE if successful, otherwise FALSE is returned. Call GetLastError() for 
        extened information.
    
    Remarks:
        This only works on NT based versions of Windows.
    
        If dwNewMode is anything other than 0 or 1, FALSE is returned and 
        GetLastError() returns ERROR_INVALID_PARAMETER.
        
        If dwNewMode specfies the current mode, FALSE is returned and 
        GetLastError() returns ERROR_INVALID_PARAMETER. Use the (documented) 
        function GetConsoleDisplayMode() to determine the current display mode.
    -----------------------------------------------------------------------------*/
    BOOL NT_SetConsoleDisplayMode(HANDLE hOutputHandle, DWORD dwNewMode)
    {
        typedef BOOL (WINAPI *SCDMProc_t) (HANDLE, DWORD, LPDWORD);
        SCDMProc_t SetConsoleDisplayMode;
        HMODULE hKernel32;
        BOOL bFreeLib = FALSE, ret;
        const char KERNEL32_NAME[] = "kernel32.dll";
    
        hKernel32 = GetModuleHandleA(KERNEL32_NAME);
        if (hKernel32 == NULL)
        {
            hKernel32 = LoadLibraryA(KERNEL32_NAME);
            if (hKernel32 == NULL)
                return FALSE;
    
            bFreeLib = true;
        }//if
    
        SetConsoleDisplayMode = 
            (SCDMProc_t)GetProcAddress(hKernel32, "SetConsoleDisplayMode");
        if (SetConsoleDisplayMode == NULL)
        {
            SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
            ret = FALSE;
        }//if
        else
        {
            DWORD dummy;
            ret = SetConsoleDisplayMode(hOutputHandle, dwNewMode, &dummy);
        }//else
            
        if (bFreeLib)
            FreeLibrary(hKernel32);
    
        return ret;
    }//NT_SetConsoleDisplayMode
    gg

  6. #6
    Banned Yuri's Avatar
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    if I use the first one it sais: 47 `GetConsoleWindow' undeclared (first use this function)
    and if I use the second above int main(); it doesn't do anything. Maybe I did something wrong, I don't know but thanks for trying.

  7. #7
    Frequently Quite Prolix dwks's Avatar
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    For both you need to include <windows.h>.
    dwk

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    This has been working ok for me on XP. Haven't tried backward compatability:
    Code:
    /* set screen mode, b == TRUE -> fullscreen, b == FALSE -> windowed */
    BOOL setScreenMode( BOOL b )
    {
    	COORD coord;
    	BOOL success = 0;
    	
    	HANDLE hConsole = GetStdHandle( STD_OUTPUT_HANDLE );
    	if(hConsole == NULL || hConsole == INVALID_HANDLE_VALUE )
    		return success;
    	
    	if(b)
    		success = SetConsoleDisplayMode( hConsole, CONSOLE_FULLSCREEN_MODE, &coord);
    	else
    		success = SetConsoleDisplayMode( hConsole, CONSOLE_WINDOWED_MODE, &coord);
    		
    	return success;
    }

  9. #9
    Super Moderator VirtualAce's Avatar
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    Scratch all that and get a DOS-based compiler if you really want DOS. I don't know why you would, but here is a link that will lead you to just that.

    Get DJGPP from here: www.delorie.com

  10. #10
    Banned Yuri's Avatar
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    1. Yes I had include <windows.h> and it still doesn't work.
    2. If I use Br5an's code above int main(); it sais In function `BOOL setScreenMode(BOOL)': `CONSOLE_FULLSCREEN_MODE' undeclared (first use this function)
    (Each undeclared identifier is reported only once for each function it appears in.)
    `SetConsoleDisplayMode' undeclared (first use this function)
    `CONSOLE_WINDOWED_MODE' undeclared (first use this function)

    Thanks for trying but I don't understand anything of it (why it doesn't work, etc.)
    3. I mean Win32 Console not DOS.
    It would be verry helpfull if someone could help me with my error's or something like that, till now on I don't get anything to work, please help me.

  11. #11
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    Code:
    #include <windows.h>
    #include <iostream>
    
    BOOL NT_SetConsoleDisplayMode(HANDLE hOutputHandle, DWORD dwNewMode)
    {
        typedef BOOL (WINAPI *SCDMProc_t) (HANDLE, DWORD, LPDWORD);
        SCDMProc_t SetConsoleDisplayMode;
        HMODULE hKernel32;
        BOOL bFreeLib = FALSE, ret;
        const char KERNEL32_NAME[] = "kernel32.dll";
    
        hKernel32 = GetModuleHandleA(KERNEL32_NAME);
        if (hKernel32 == NULL)
        {
            hKernel32 = LoadLibraryA(KERNEL32_NAME);
            if (hKernel32 == NULL)
                return FALSE;
    
            bFreeLib = true;
        }//if
    
        SetConsoleDisplayMode = 
            (SCDMProc_t)GetProcAddress(hKernel32, "SetConsoleDisplayMode");
        if (SetConsoleDisplayMode == NULL)
        {
            SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
            ret = FALSE;
        }//if
        else
        {
            DWORD dummy;
            ret = SetConsoleDisplayMode(hOutputHandle, dwNewMode, &dummy);
        }//else
            
        if (bFreeLib)
            FreeLibrary(hKernel32);
    
        return ret;
    }//NT_SetConsoleDisplayMode
    
    int main( void )
    {
      NT_SetConsoleDisplayMode( GetStdHandle( STD_OUTPUT_HANDLE ), 1 );
      std::cin.get();
      return 0;
    }
    Did you pass those parameters? If so, you're probably not running an NT based version of Windows.

    I don't know where those functions Br5an uses are, neither where GetConsoleWindow(); is

    However, you can delete GetConsoleWindow, but it just won't work if they don't have the window in focus.

    I know I'm mostly just repeating other people, but it seems you didn't hear it

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    Just a follow up with example, please pardon that I didn't change printf's to cout, ect... The problem is probably with _WIN32_WINNT, I put a little comment in the code. Works with DevC++ 4.9.9.2 (MinGW compiler) on XP for sure.

    Edit: _WIN32_WINNT 0x0501 should also work. I noticed after looking in wincon.h

    Code:
    #include <stdio.h>
    
    /* Must be running a 'new' enough version of Windows or it's not
       going to work. How 'new' 0x0502 is I don't know off hand. */
    #ifndef _WIN32_WINNT
    #define _WIN32_WINNT 0x0502
    #endif
    
    #include <windows.h>
    
    #define FULL_SCREEN TRUE
    #define WINDOWED FALSE
    
    /* set screen mode, b == TRUE -> fullscreen, b == FALSE -> windowed */
    BOOL setScreenMode( BOOL b )
    {
    	COORD coord;
    	BOOL success = 0;
    	
    	HANDLE hConsole = GetStdHandle( STD_OUTPUT_HANDLE );
    	if(hConsole == NULL || hConsole == INVALID_HANDLE_VALUE )
    		return success;
    	
    	if(b)
    		success = SetConsoleDisplayMode( hConsole, CONSOLE_FULLSCREEN_MODE, &coord);
    	else
    		success = SetConsoleDisplayMode( hConsole, CONSOLE_WINDOWED_MODE, &coord);
    		
    	return success;
    }
    
    int main( )
    {
    	BOOL mode;
    	mode = setScreenMode( FULL_SCREEN );
    	if(mode)
    		printf("Full screen mode set");
    	else
    		printf("Full screen mode failed");
    		
    	getchar( );
    		
    	mode = setScreenMode( WINDOWED );
    	if(mode)
    		printf("Windowed screen mode set");
    	else
    		printf("Windowed screen mode failed");
    		
    	getchar( );
    	
    	return(0);
    }
    Last edited by Br5an; 08-13-2005 at 12:59 AM.

  13. #13
    Banned Yuri's Avatar
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    Cool it works. There is only one problem, this is for C not C++. Really thanks for your help, it's awesome only to bad that it's not for C++.

    Edit

    Ow, sorry I noticed that the one under my previus post also worked and for C++, Thanks dude!

    Edit

    Hehe, nevermind I got them both to work now in C++. Hehe . Thanks.
    Last edited by Yuri; 08-13-2005 at 01:27 PM.

  14. #14
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    Quote Originally Posted by Br5an
    Just a follow up with example, please pardon that I didn't change printf's to cout, ect... The problem is probably with _WIN32_WINNT, I put a little comment in the code. Works with DevC++ 4.9.9.2 (MinGW compiler) on XP for sure.

    Edit: _WIN32_WINNT 0x0501 should also work. I noticed after looking in wincon.h

    Code:
    #include <stdio.h>
    
    /* Must be running a 'new' enough version of Windows or it's not
       going to work. How 'new' 0x0502 is I don't know off hand. */
    #ifndef _WIN32_WINNT
    #define _WIN32_WINNT 0x0502
    #endif
    
    #include <windows.h>
    
    #define FULL_SCREEN TRUE
    #define WINDOWED FALSE
    
    /* set screen mode, b == TRUE -> fullscreen, b == FALSE -> windowed */
    BOOL setScreenMode( BOOL b )
    {
    	COORD coord;
    	BOOL success = 0;
    	
    	HANDLE hConsole = GetStdHandle( STD_OUTPUT_HANDLE );
    	if(hConsole == NULL || hConsole == INVALID_HANDLE_VALUE )
    		return success;
    	
    	if(b)
    		success = SetConsoleDisplayMode( hConsole, CONSOLE_FULLSCREEN_MODE, &coord);
    	else
    		success = SetConsoleDisplayMode( hConsole, CONSOLE_WINDOWED_MODE, &coord);
    		
    	return success;
    }
    
    int main( )
    {
    	BOOL mode;
    	mode = setScreenMode( FULL_SCREEN );
    	if(mode)
    		printf("Full screen mode set");
    	else
    		printf("Full screen mode failed");
    		
    	getchar( );
    		
    	mode = setScreenMode( WINDOWED );
    	if(mode)
    		printf("Windowed screen mode set");
    	else
    		printf("Windowed screen mode failed");
    		
    	getchar( );
    	
    	return(0);
    }
    _WIN32_NT 0x502 means Windows Server 2003. _WIN_NT 0x501 means Windows XP. This code can also be run on _WIN32_NT 0x500 (Windows 2000. MSDN tries to screw you up by saying SetConsoleDisplayMode won't work there. It just needs some defining). However, one thing I don't get is that _WIN32_NT not defined thing. In all systems I have compiled things I get _WIN32 defined but not _WIN32_WINDOWS or _WIN32_NT. Anyway, here's what it needs to work with systems >= Windows 2000.
    Code:
    #include <stdio.h>
    
    #ifndef _WIN32_NT
    #define _WIN32_NT 0x500
    #endif
    
    #include <windows.h>
    
    typedef BOOL (WINAPI *SetConsoleDisplayModeProc) (HANDLE, DWORD, PCOORD);
    HMODULE dll = LoadLibrary("kernel32.dll");
    SetConsoleDisplayModeProc SetConsoleDisplayMode = (SetConsoleDisplayModeProc)GetProcAddress(dll, "SetConsoleDisplayMode");
    
    #define FULL_SCREEN TRUE
    #define WINDOWED FALSE
    After that it's like in the example. Works perfectly on my Windows 2000. Btw, I was using MSVC++ toolkit 2003 with SDK, just for the record. I don't have WINAPI installed on my mingw.
    ps. The function declarations are not made up by me. If the original writer ever bothers coming here, feel free to get the credit.

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