NetNews Usenet Archive 1992 #16/NN_1992_16.iso/spool/comp/windows/x/14183

Internet Message Format | 1992-07-22 | 1.6 KB

Path: sparky!uunet!haven.umd.edu!umd5!wls
From: [e-mail] (William L. Sebok)
Newsgroups: comp.windows.x
Subject: cursor in spring-loaded menu
Message-ID: <[e-mail]>
Date: 22 Jul 92 16:42:17 GMT
Sender: [e-mail]
Organization: U. of Maryland @ College Park, Astronomy
Lines: 19

I have a menu widget which I have written intended to be used as a
spring-loaded popup when a button is pressed (by means of an XtMenuPopup() in
the translations).  While the menu is popped up I would like the cursor to have
some special shape.  It seems to be hard to do this.  Setting the default
cursor on the widget does not do anything. Nor does setting the cursor with
XDefineCursor() in the popup callback. The cursor always seems to be that of
the widget that issued the grab.  The XtMenuPopup action routine puts out a
passive pointer grab (XGrabButton).  XGrabButton specifies a cursor that is
used during the grab.  The code for this in the Intrinsics is hard for me to
follow but it is not obvious to me how to have cursor have any other value but
None.  Perhaps I have to write my own action routine rather than XtMenuPopup()?
Is there something I am missing? some way to get the grab to be issued with a
particular cursor? I have solved it with a call to XChangeActivePointerGrab()
in the popup callback which seems to be what the doctor ordered except that it
wants a new event mask to be specified. I would want to use the same event mask
as used in the original XGrabButton call but I have no easy way of knowing
that.  I have used a mask for all possible pointer events.
--
Bill Sebok      Univ. of Maryland, Astronomy    Internet: [e-mail]