PRINT "This will not compile or run correctly on Windows 7 thru 10"
 PRINT "It is being left here for historical continuity only."
 PRINT "MrBcx -- Dec 01, 2019"
 
 $COMMENT
 
 '-----------------------------------------------------
 ' This program demonstrates toggling full screen mode
 ' This version only works in Win95/98/ME/NT
 '-----------------------------------------------------
 
 REM '$HEADER
 REM  typedef void (CALLBACK *ULPRET1)(DWORD*);
 REM  typedef void (CALLBACK *ULPRET2)(HANDLE,DWORD,int);
 REM '$HEADER
 
 ToggleFullScreen()
 Sleep(1000)                  'delay 1 second each iteration
 
 SUB ToggleFullScreen()
 DIM SetConsoleDisplayMode AS ULPRET2
 DIM GetConsoleDisplayMode AS ULPRET1
 DIM hKernel32             AS HMODULE
 DIM hOut      AS HANDLE
 DIM dwOldMode AS DWORD
 DIM hConWnd AS HWND
 DIM ConTxt$
 
 CONST ID_SWITCH_CONSOLEMODE = 0xE00F
 
 IF IsNT() THEN
 ' ------------------------------------------------
 ' taken from http://www.codepile.com/tric16.shtml
 ' ------------------------------------------------
   hKernel32 = GetModuleHandle("kernel32.dll")
   SetConsoleDisplayMode = (ULPRET2)GetProcAddress(hKernel32, "SetConsoleDisplayMode")
   GetConsoleDisplayMode = (ULPRET1)GetProcAddress(hKernel32, "GetConsoleDisplayMode")
   hOut = GetStdHandle(STD_OUTPUT_HANDLE)
   GetConsoleDisplayMode(&dwOldMode)
   SetConsoleDisplayMode(hOut, 1 XOR dwOldMode, 0)
 ELSE
   GetConsoleTitle(ConTxt$, SIZEOF(ConTxt$))
   hConWnd = FindWindow("tty", ConTxt$)
   SendMessage(hConWnd, WM_COMMAND, ID_SWITCH_CONSOLEMODE, 0)
 END IF
 END SUB
 
 FUNCTION IsNT()
 DIM dwVersion AS DWORD
 dwVersion = GetVersion()
 IF (dwVersion < 0x80000000) THEN
   FUNCTION = TRUE
 ELSE
   FUNCTION = FALSE
 END IF
 END FUNCTION
 
 $COMMENT