Mouse coordinate trouble

[Gawain Lynch <gawain freda homelinux org>]

Hi,

I am trying to get the mouse coordinates at the point when I release the
button, i.e.  I click on the window and when I release the button I wish
to move the window to the position.

The code below seems to get me most of the way however I am getting
strange results WRT the 'y' values returned and therefore have lost
total confidence in my own efforts to achieve this.

Can anybody save this piece of code?  ;)

Thanks,

Gawain


gdouble         x, y;
GdkModifierType state;

while (gdk_events_pending())
{
  event = gdk_event_get();
  if (event)
  {
    switch (event->type)
    {
      case GDK_DESTROY:
        gdk_exit(0);
        exit(0);
        break;
      case GDK_BUTTON_PRESS:
        if (event->button.button == 3)
        {
          exit(0);
          break;
        }
        if (event->button.button == 1)
        {
          gdk_pointer_grab(appwin.win, FALSE, 
            GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK, 
            NULL, gdk_cursor_new(GDK_HAND2), GDK_CURRENT_TIME);      
 
          gdk_window_get_pointer(appwin.win, &x, &y, &state);
        }
        break;
      case GDK_BUTTON_RELEASE:
        gdk_window_get_pointer(appwin.win, &x, &y, &state);
        x = event->motion.x_root; 
        y = event->motion.y_root;
        gdk_window_move(appwin.win, x, y);
            
        gdk_pointer_ungrab(GDK_CURRENT_TIME);
        break;
            
      default:
        break;
    }
  }
}