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From: warlock@csuchico.edu (John Kennedy)
Newsgroups: comp.windows.x
Subject: Cursor control
Keywords: disappear cursor
Message-ID: <1990Jun29.215452.221@csuchico.edu>
Date: 29 Jun 90 21:54:52 GMT
Sender: news@csuchico.edu (USENET)
Reply-To: warlock@csuchico.edu (John Kennedy)
Organization: California State University, Chico
Lines: 25


  I have a problem that perhaps someone can answer.  I wish to make the cursor
temporarily disappear.  My current efforts have been foiled because X seems to
keep around an image of what's under the cursor.  Here is the situation:

  I'm using a Sun SPARCstation 1+  (8-bit color)
  X11R4

  I'm calling a function that apparently uses low-level pixrect calls to
move images around inside a box.  By clicking on a spot, the function centers
the image on that spot (so I'm basically panning around, seeing a piece of a
larger image).  That is all working fine, but the problem is this:  When I
click on a spot, the function copies a piece of the image on top of where my
cursor was.  When I move the mouse, what used to be under the cursor is
restored, leaving a cookie on the screen.  Defining the mouse shape as nothing
doesn't appear to help anything at all.

  Xterm appears to get around this problem nicely.  Does anybody know how it
does it?  Thanks for any help you might give.

--

Warlock, AKA              +----------------------------------------------------
John Kennedy              | internet: warlock@csuchico.edu
CSU Chico		  +----------------------------------------------------