RosettaCodeData/Task/GUI-Maximum-window-dimensions/Creative-Basic/gui-maximum-window-dimensio...

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DEF Win:WINDOW
DEF Close:CHAR
DEF ScreenSizeX,ScreenSizeY:INT
DEF L,T,ClientWidth,ClientHeight:INT
GETSCREENSIZE(ScreenSizeX,ScreenSizeY)
WINDOW Win,0,0,ScreenSizeX,ScreenSizeY,@MINBOX|@MAXBOX|@SIZE|@MAXIMIZED,0,"Get Client Size",MainHandler
'Left and top are always zero for this function.
GETCLIENTSIZE(Win,L,T,ClientWidth,ClientHeight)
PRINT Win,"Maximum drawing area values: width is"+STR$(ClientWidth)+" and height is"+STR$(ClientHeight)+"."
WAITUNTIL Close=1
CLOSEWINDOW Win
END
SUB MainHandler
SELECT @CLASS
CASE @IDCLOSEWINDOW
Close=1
ENDSELECT
RETURN
Output: Maximum drawing area values: width is 1280 and height is 749.