The WindowEx.GetWindowRect function retrieves the dimensions of the bounding rectangle of the specified window. The dimensions are given in screen coordinates that are relative to the upper-left corner of the screen.

table WindowEx.GetWindowRect(

number hWnd --handle of window
);

Parameters

hWnd

Identifies the window.

Return Values

If the function succeeds, the return value is table containing bounding rectangle of specified window

result = WindowEx.GetWindowRect(Application.GetWndHandle());

left = result.Left;
top = result.Top;
right = result.Right;
bottom = result.bottom;

If the function fails, the return value is nil

if result ~= nil then
--do anything here
end