The _wmenuclick function emulates the user choosing one of the menu commands that are standard on all QuickWin applications. By giving a program access to these commands it can more completely control its appearance on the screen.
The function accepts one parameter that indicates which command to choose. The following parameters are currently supported:
_WINTILE
Tiles the windows
_WINCASCADE
Cascades the windows
_WINARRANGE
Arranges the icons of any closed windows
_WINSTATBAR
Turns the Status Bar on if it is off, or off if it is on
The _wmenuclick function does not change which window is active, but may change its size and placement on the screen. For example, the following line cascades all the currently open windows and places the active window on top:
iWMC = _wmenuclick(_WINCASCADE);
The integer return value is 0 if the operation succeeds or -1 if it fails.