Re: Scribble Example

[muppet <scott asofyet org>]

On Jul 13, 2008, at 9:08 AM, zentara wrote:

> Hi, this is the result of my experiments. I can write to the gdk  
> foreign window,
> and even move it, but I can't scribble to it with the mouse.
> The problem seems to be you can't assign events to the gdk window from
> another window, so the mouse is useless on it.
>
> Is there a trick I'm missing?  There are 2 attachments. One is the  
> target
> script called Z, and the other launches it, starts itself, then tries
> to manipulate the gdk window.


(My line numbers are different, i had to hack up something to replace  
the Wnck code on my system.)

GLib-GObject-WARNING **: gsignal.c:1657: signal `event' is invalid for  
instance `0x8889b68' at ./screenshot-foreign-write-scribble line 49.


GdkWindow is a GObject but has no signals.  You're thinking of the  
GtkWidget::event signal.  If you want integration with the event  
system, you'll have to wrap the GdkWindow up in a GtkWidget, and  
enable an event filter.  (Oops, gdk_window_add_filter() has never been  
implemented in the bindings...)


I'm a bit confused, what's the actual goal, here?  If you just want to  
capture the contents of the other window, it seems that readonly  
access you get here is fine.  If you want something more elaborate,  
then xswallow or GtkPlug/GtkSocket may be more appropriate.


--
Me:  What's that in your mouth?
Zella:  *swallows laboriously*  Nothing.
Me:  What did you just swallow?
Zella:  A booger.
Me:  Baby girl, don't eat boogers.  That's gross.
Zella:  But it was in my nose.