Returns the internal width of a window (without border).
// Internal width of the "WIN_EditCustomer" window
ResInternalWidth = WinInWidth(WIN_EditCustomer)
Syntax
<Result> = WinInWidth([<Window used>])
<Result>: Integer
Internal width of the window (in pixels).
<Window used>: Optional window name or optional string
Name or alias of the window to be used. If this parameter is not specified or corresponds to an empty string (""), the internal width of the current window is returned.