Conference bulova::decw_jan-89_to_nov-90

1480.0. "XSelectAsyncEvent problems in V2 FT2" by BODONI::SHERMAN () Fri Sep 22 1989 14:38

	My system just got updated to V2 FT2 and my once-working application
	is now having problems with Asynchronous Events.  I define the event
	via a call to XSelectAsyncEvent...


	XSelectAsyncEvent(the_display,XtWindow(my_dialog_box_widget),
		Expose,my_callback_routine,4);

	where 4 is the user argument to be passed to my callback routine when
	the dialog box becomes exposed.  My callback routine looks like..

	static
	my_callback_routine(user_arg)

	int user_arg;
		{
		...
		}

	Before the software update, user_arg was correctly getting the
	value 4 when my_callback_routine() was called.  Now it gets the
	hex value 0x7ff2d000 !!!  This happens for both Expose events and
	ButtonPress events.  Has anyone else seen this behavior or am I
	doing something wrong?  Perhaps someone has an XSelectAsyncEvent
	sample that works under V2 FT2.

	Thanks,
	Mark

	p.s. - All modules were re-compiled, re-UILed and re-linked.

This is a known problem that will be fixed in the SSB version
of DECwindows V2.