Creating a console for your MFC app's debug output

// from KnowledgeBase
HWND GetConsoleHwnd()
{
    #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);
}
 
BOOL DisableConsoleClose()
{
    return RemoveMenu(GetSystemMenu(GetConsoleHwnd(), FALSE),
        SC_CLOSE, MF_BYCOMMAND);
}

BOOL InitConsole()
{
    BOOL bRet;
    
    bRet = AllocConsole();
 
    if (bRet)
    {
 
#ifdef _INC_STDIO
    // sync stdio with the console
    freopen("CONIN$", "r", stdin);
    freopen("CONOUT$", "w", stdout);
    freopen("CONOUT$", "w", stderr);
#endif
 
#ifdef _INC_IOSTREAM
    // sync iostream with the console
    cin.sync_with_stdio();
    cout.sync_with_stdio();
    cerr.sync_with_stdio();
    clog.sync_with_stdio();
#endif
 
    }
 
    return bRet;
}

#include < process.h>
#include <errno.h>
#include <stdio.h>
#include <fcntl.h>
#include <io.h>
#include <iostream.h>
#include <fstream.h>
 
#define MAX_CONSOLE_LINES 250;
 
HANDLE  g_hConsoleOut;                   // Handle to debug console

void RedirectIOToConsole();
 
// This function dynamically creates a "Console" window and points stdout and stderr to it.
// It also hooks stdin to the window
// You must free it later with FreeConsole
void RedirectIOToConsole()
{
    int                        hConHandle;
    long                       lStdHandle;
    CONSOLE_SCREEN_BUFFER_INFO coninfo;
    FILE                       *fp;
 
    // allocate a console for this app
    AllocConsole();
 
    // set the screen buffer to be big enough to let us scroll text
    GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), 
                               &coninfo);
    coninfo.dwSize.Y = MAX_CONSOLE_LINES;  // How many lines do you want to have in the console buffer
    SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE), 
                               coninfo.dwSize);
 
    // redirect unbuffered STDOUT to the console
    g_hConsoleOut = GetStdHandle(STD_OUTPUT_HANDLE);
	lStdHandle = (long)GetStdHandle(STD_OUTPUT_HANDLE);
    hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
    fp = _fdopen( hConHandle, "w" );
    *stdout = *fp;
    setvbuf( stdout, NULL, _IONBF, 0 );
 
    // redirect unbuffered STDIN to the console
    lStdHandle = (long)GetStdHandle(STD_INPUT_HANDLE);
    hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
    fp = _fdopen( hConHandle, "r" );
    *stdin = *fp;
    setvbuf( stdin, NULL, _IONBF, 0 );
 
    // redirect unbuffered STDERR to the console
    lStdHandle = (long)GetStdHandle(STD_ERROR_HANDLE);
    hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
    fp = _fdopen( hConHandle, "w" );
    *stderr = *fp;
    setvbuf( stderr, NULL, _IONBF, 0 );	
	SetConsoleTitle("The Console Titlebar Text");   
	
    // make cout, wcout, cin, wcin, wcerr, cerr, wclog and clog 
    // point to console as well  Uncomment the next line if you are using c++ cio or comment if you don't
    //ios::sync_with_stdio();
}