Re: GDK_POINTER_MOTION_HINT_MASK

[jcupitt gmail com]

2009/4/17 Jean-Philippe Chancelier <jpc cermics enpc fr>:
>        I am using the GDK_POINTER_MOTION_HINT_MASK on a slow
>        machine and have signal handlers for "motion-notify-event"
>        "button-press-event" and "button-release-event".
>        I have the feeling that signal handlers for motion
>        are activated before signal handlers for press/release that
>        occured before: I move an object and during the move press
>        a button to stop the object and I continue to move the mouse,
>        the object follow the move after the stop for a while,
>        then go back to the stop. Without GDK_POINTER_MOTION_HINT_MASK
>        this behaviour do not seams to appear.
>        Is such behaviour impossible and just the result
>        of something wrong on my side ?

You need to read the pointer explicitly to flush the queue of pending
movements. I wrote a tiny program a while ago that shows how to do
this:

http://lists-archives.org/gtk/07028-gdk_pointer_motion_hint_mask-has-no-effect.html

John