ANA
ANA
CHECKWINDOW( [ window ] )
[x11] Returns 1 if a mouse button has been
clicked while the mouse pointer was in the specified ANA window, or
(when window is not specified) in any ANA window; 0
otherwise. !IX, !IY, !XTIME, !WINDOW, and
!BUTTON are modified appropriately if a mouse button was clicked.
See also: !BUTTON, CHECKMENU, !IX, !IY, !WINDOW, XPLACE, XQUERY, !XTIME, Windows