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Re: can anybody help with bebugging a little displaying program?

thank you , but following ur way, I get a sefmentation fault. ;(

>From: Hing-Wah Wan <50191914 ee cityu edu hk>
>To: guo li
>CC: gtk-list gnome org
>Subject: Re: can anybody help with bebugging a little displaying program?
>Date: Tue, 19 Mar 2002 09:37:34 +0800
>
>On Tue, Mar 19, 2002 at 12:06:53AM +0000, guo li wrote:
> >
> > the run time error is:
> >
> > i olympia GTK]$ ./a.out
> >
> > ** CRITICAL **: file gdk-pixbuf-render.c: line 205
> > (gdk_pixbuf_render_to_drawable): assertion `drawable != NULL' failed.
> > [gli olympia GTK]$
> >
> >
> >
> > pixbuf = gdk_pixbuf_new_from_file("rose");
> > gtk_widget_set_usize(widget,
> > gdk_pixbuf_get_width(pixbuf),gdk_pixbuf_get_height(pixbuf));
>the GdkWindow in the widget is invalid before it is realized(which will
>be realized when you call gtk_widget_show ,or gtk_widget_realize,
>call gtk_widget_realize(widget); before you are trying to use the
>window member in GtkWidget
>
>
> > gdk_pixbuf_render_to_drawable (pixbuf,
> > widget->window,widget->style->white_gc, 0, 0,0,0,
> >
> > gdk_pixbuf_get_width(pixbuf),
> >
> > gdk_pixbuf_get_height(pixbuf),
> > GDK_RGB_DITHER_NORMAL,
> > 0, 0);
> >
> >
> > gtk_container_add(GTK_CONTAINER(window), widget);
> >
> > gtk_widget_show(widget);
> > gtk_widget_show (window);
> > gtk_main ();
> > return 0;
> > }
> >
> >
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>
>--
>pub 1024D/FA54C566 2000-06-04 Wan Hing Wah (Chinese)
> Key fingerprint = 0E99 9956 B340 DA66 DB9C 85B7 1AC5 8939 FA54 C566
>sub 1024g/4EE841C3 2000-06-04
>
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