Re: [Bug-gnubg] changing GTK label from callback

[Olivier Baur]

Le vendredi, 18 juil 2003, à 21:38 Europe/Paris, Holger a écrit :

> does anybody know how one can update a GTK label from a signal callback? Just gtk_label_set_text doesn't seem to work.
>
> I've tried to fix "[bug #4288] Incorrect path to MET", showing the MET filename under settings|options|match. After loading a new table I try to change the label text from SetMET(). But it doesn't want to. :( I've even tried:
>
> extern void SetMET( gpointer *p, guint n, GtkWidget *pw ) {
> ...
> if ( p && GTK_WIDGET_VISIBLE( p ) ) {
> gtk_label_set_text( GTK_LABEL( p ), miCurrent.szFileName );
> /* the following shouldn't be necessary */
> gtk_widget_queue_draw( GTK_WIDGET( p ) );
> gtk_widget_queue_draw( gtk_widget_get_toplevel( GTK_WIDGET( p ) ) );
> gtk_widget_show_all( gtk_widget_get_toplevel( GTK_WIDGET( p ) ) );
> }

The problem is the prototype of your callback function is incorrect, and should read:

extern void SetMET( GtkWidget *p, guint n )  

I've tried it and it works.


-- Olivier