Re: Using the motion-notify-event

[muppet <scott asofyet org>]

On Mar 3, 2005, at 7:56 AM, Ari Jolma wrote:

> I have a window, where I have a ScrolledWindow, where I have an 
> EventBox, where I have an image. I get the motion-notify-event only 
> when I move the mouse with button pressed. How do I get the event 
> without having to press the button?
>
> I need the press-button-move event also for panning the image, but I 
> expected it to be the drag-begin drag-end events, which I did not yet 
> get fired in any case.

it's really just a gtk+ question.  the same thing happens in C.  :-P

> my $event_box = Gtk2::EventBox->new;
> $event_box->add($image);
> $event_box->signal_connect(motion_notify_event => \&motion_notify);

by default, GtkEventBox does not ask for motion-notify-events.  when 
you drag with the mouse button down, gdk automatically grabs the 
pointer and you get the motion notifies (maybe that's X, i'm not sure), 
until you let the button up, at which point it ungrabs.  if you want 
motion notify at all times, you need to tell the widget to ask X for 
those events.

  $event_box->add_events ('pointer-motion-mask');


--
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than a broken nose.
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