IsMouse()
 Return a status of the mouse shape and buttons.
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 Syntax:

     IsMouse( <nSpecifier> ) --> lStatus

 Arguments:

     <nSpecifier> is a numeric value which specifies the setting to be
     inspected.  <nSpecifier> should be supplied as a manifest constant
     (see below).

 Returns:

     IsMouse() returns a logical value indicating the status of the
     specified setting.

 Description:

     IsMouse() is used to inspect the status of the mouse settings and
     buttons.

     The setting to be inpected is supplied as a parameter to the
     function via one of the manifest constants found in MOUSE.CH.
     --------------------------------------------------------------------------
     Constant           Associated status(Return value is .T. if...)
     --------------------------------------------------------------------------
     MOUSE_OFF         ... the mouse is off.
     MOUSE_ON          ... the mouse is on and is an arrow pointer.
     MOUSE_WAIT        ... the mouse is on and is an hour glass.
     MOUSE_HIDDEN      ... is behind something on the screen.
     MOUSE_LEFT        ... the left mouse button is being pressed.
     MOUSE_RIGHT       ... the right mouse button is being pressed.
     MOUSE_BOTH        ... the both of the mouse buttons are being pressed.
     MOUSE_MIDDLE      ... the middle mouse button is being pressed.


 Files:  Library is MOUSE.LIB and MOUSE.CH.