Re: quirky realize?

["Gustavo J. A. M. " Carneiro <gjc inescporto pt>]

On Dom, 2003-03-09 at 05:56, Ramkumar Chinchani wrote:
> I have overridden the realize() function with my own for a widget that I
> have written. I am attempting to set the event mask within this funtion as
> follows.
>
> << code start >>
>
> void
> wm_root_realize(GtkWidget *widget)
> {
>       WmRoot *wm_root;
>
>       printf("realize\n");
>
>       g_return_if_fail(widget != NULL);
>       g_return_if_fail(IS_WM_ROOT(widget));
>
>       GTK_WIDGET_SET_FLAGS(widget, GTK_REALIZED);
>
>       wm_root = WM_ROOT(widget);
>
>       widget->window = gdk_get_default_root_window();
>
>       gtk_widget_set_events(widget, gtk_widget_get_events(widget) |
> GDK_BUTTON_PRESS_MASK);
>
>       g_object_ref(gdk_get_default_root_window());
>
>       gdk_window_set_user_data(widget->window, widget);
>
>       return;
> }
>
> << code end >>
>
> It fails with this message:
>
> Gtk-CRITICAL **: file gtkwidget.c: line 4877 (gtk_widget_set_events):
> assertion `!GTK_WIDGET_REALIZED (widget)' failed
>
> GTK_WIDGET_REALIZED just seems to check the flags field, which I have set
> to GTK_REALIZED already.
>
> Why is this failing?

  It's obvious :) You must be missing the little '!' that appears here:
assertion `!GTK_WIDGET_REALIZED (widget)' failed

You cannot add events to the event mask of an already realized widget.
And what is it that you are doing? Changing widget's window to a
reference to the root window? Is that necessary? Is that wise? :)

> Thanks
>
> -Ram
>
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-- 
Gustavo João Alves Marques Carneiro
<gjc inescporto pt> <gustavo users sourceforge net>