Retrieves the width of a window's client area
#include <WinAPISysWin.au3> _WinAPI_GetClientWidth ( $hWnd )
_WinAPI_GetClientHeight
#include <MsgBoxConstants.au3> #include <WinAPISysWin.au3> Example() Func Example() Local $hWnd $hWnd = GUICreate("test") MsgBox($MB_SYSTEMMODAL, "Client", "Client Width: " & _WinAPI_GetClientWidth($hWnd)) EndFunc ;==>Example