Re: gtk_drawing_area_new()

[Olexiy Avramchenko <olexiy irtech cn ua>]

Russell Shaw wrote:

> Hi,
> In this code, grid->window is NULL (in gdk_draw_rectangle). Is a parent
> widget needed to inherit the window from?
>
>     GtkWidget *grid=gtk_drawing_area_new();
>     gtk_widget_set_size_request(grid,100,100);
>     gdk_gc_set_foreground(gc,&(obj->background.col));
>     
> gdk_draw_rectangle(grid->window,gc,TRUE,0,0,grid->allocation.width,grid->allocation.height);

Your widget just not realized. Connect to "realize" signal to be sure 
that GdkWindow for this widget (or his parent in case of GTK_NO_WINDOW 
widgets) is created. You also can check that the widget is realized by 
GTK_WIDGET_REALIZED() macro.

   Olexiy