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+cmdmax is a tiny Windows application that allows to maximize cmd.exe window to match the full screen size. Unlike maximize button the utility changes botch horizontal and vertical size of the console window in characters. Additionaly the buffer size is set to 3000 lines vertically. The application is intended to be used in scripts / batch jobs, Windows PE, embedded, etc. 
diff --git a/cmdmax.c b/cmdmax.c
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+/*++
+
+Copyright (c) 2013 by Antoni Sawicki
+
+Module Name:
+
+    cmdmax.c
+
+Abstract:
+
+    Maximize cmd.exe Window to match the screen size
+
+Author:
+
+    Antoni Sawicki <as@tenoware.com>
+
+License:
+   
+    Public Domain
+
+--*/
+
+
+#include <windows.h>
+#include <stdio.h>
+
+#pragma comment(lib, "user32.lib")
+
+HWND (__stdcall *CmdGetConsoleWindow)(void);
+
+
+HWND
+MyGetConsoleWindow(
+    void
+    )
+/*++
+
+Routine Description:
+
+    This is a makeshift version of GetConsoleWindow() function substituted
+    for Windows < 2000 which do not have the OS supplied version.
+
+--*/
+{
+    char winname[128];
+    HWND cmdwin=NULL;
+    int n=0;
+
+    _snprintf(winname, sizeof(winname), "CMDMAX:%d", GetCurrentProcessId());
+
+    SetConsoleTitle(winname);
+
+    do {
+        n++;
+        Sleep(100);
+        cmdwin=FindWindow(NULL, winname);
+    } while (!cmdwin && n<600);
+
+    return cmdwin;
+}
+
+
+
+int
+main(
+    int argc, 
+    char **argv
+    )
+/*++
+
+Routine Description:
+
+    This routine is the main program for CmdMax.
+
+    There are no arguments although further improvement could be made
+    to supply user defined window size and position. If you require such
+    functionality please email the author.
+
+--*/
+{
+    HANDLE hConsole;
+    COORD buff, winmax;
+    SMALL_RECT winpos;
+
+
+    CmdGetConsoleWindow = (void *) GetProcAddress(GetModuleHandle("kernel32.dll"), "GetConsoleWindow" );
+
+    if(!CmdGetConsoleWindow) 
+        CmdGetConsoleWindow = (void *) MyGetConsoleWindow;
+
+    
+    hConsole=GetStdHandle(STD_OUTPUT_HANDLE);
+    winmax=GetLargestConsoleWindowSize(hConsole);
+
+    winpos.Left=0;
+    winpos.Top=0;
+    winpos.Right=winmax.X-5;
+    winpos.Bottom=winmax.Y-5;
+    buff.X=winpos.Right+1;
+    buff.Y=3000;
+     
+    SetConsoleScreenBufferSize(hConsole, buff);
+    SetConsoleWindowInfo(hConsole, TRUE, &winpos);
+    SetWindowPos(CmdGetConsoleWindow(), HWND_TOP, 0, 0, 0, 0, SWP_NOSIZE);
+
+    return 0;
+}
+