XForms: gl_canvas with canvashandlers, and other FL_OBJECTs

Dirk Evers (dirk@TechFak.Uni-Bielefeld.DE)
Tue, 10 Nov 1998 16:08:17 +0100 (MET)

# To subscribers of the xforms list from Dirk Evers <dirk@TechFak.Uni-Bielefeld.DE> :

Hi,

my problem is as follows:
I have a nice GL canvas which works just fine, with some canvas handlers
(Expose, ButtonPress, ButtonRelease, MotionNotify) installed that I use to
manipulate the rendered scene (translate, zoom, rotate on mouse presses).

No problem so far. Everything works as expected...

Apart from one thing:
I have a slider (return when changed) on the same form. When I press mouse1=
on
the slider to move it, it behaves as expected, but when I enter the region =
of
the form taken up by the gl_canvas with the mouse pressed both objects
simultaniously interpret the motion-events. I tried fiddling around with en=
ter-
and leave-notification events, and registering/deregistering the motion
callback on button press, but didn't get anywhere really.

Have I missed something in the manual?

I'm shure there is a standard way of doing this...

Cheers
Dirk

---
Dirk Evers / AG-PI / Technische Fakultaet                         Office: M=
3-120
Universitaet Bielefeld                                     Tel: +49 521 106=
-2905
Postfach 100 131                                           FAX: +49 521 106=
-6411
D-33501 Bielefeld                    EMail: mailto:dirk@TechFak.Uni-Bielefe=
ld.DE
Germany           URL: http://www.TechFak.Uni-Bielefeld.DE/techfak/persons/=
dirk/
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