GtkStyle this time....

OK, so I have another question. I've been playing with GtkStyles and have
come across something I just don't understand. Here's a little snipped of
code:

function set_widget_style($widget, $colour) {
	$current_widget_style=$widget->get_style();
	var_dump($current_widget);
	$new_widget_style=$current_widget_style->copy();

	$new_widget_style->base[GTK_STATE_NORMAL]=$colour;

	$widget->set_style($new_widget_style);	
}

and I call this passing it a widget (in this case a CList) and a
GdkColor. Now it works the first time and fails after that, and I think
Oh, of course, I'm assinging the style to a local variable, by the second
call that no longer exists. So just for fun I put the var_dump in there
and what do you know both times it returns a GtkStyle object. 

So, is that the correct behavior? I expected the var_dump to return a
NULL.

Here's the error that php produces:
<b>Fatal error</b>:  Underlying object missing or of invalid type in
<b>/home/richp/rdp_projects/teak/colour_selection.php</b> on line
<b>134</b><br>

line 134 is  $new_widget_style=$current_widget_style->copy();

so my code is wrong (I think), but not failing the way I expected.

Also if anybody has any good example of working with GtkStyles
(specifically changing them on the fly) that would be appreciated. the
GTK+ Docs are a little thin.

TIA,
--rdp

 -- 
Rich Payne
[email protected]			www.alphalinux.org