Re: Differences between kinds of events

[Gnaural <gnaural users sourceforge net>]

Thanks for the reply. Using gtk_widget_add_events()
was a good tip in general, and the order in which I
call things too. But unfortunately, they didn't help
solve the question I still see. 

I'll paste a very short program illustrating what I
mean below, in which I set-up a button-press and a
key-press handler in the same way for drawingarea1,
but only the button-press responds. But if I merely
change "drawingarea1" to "window1" in the key-press
g_signal_connect(), it catches key presses just fine:


<code>
/* Compile with:
gcc main.c -o keytest `pkg-config --cflags --libs
gtk+-2.0`
*/
#include <gtk/gtk.h>

gboolean 
on_drawingarea1_button_press_event(GtkWidget     
*widget,
                                   GdkEventButton
*event,
                                   gpointer      
user_data)
{
 printf("button\n");
  return FALSE;
}

gboolean
on_drawingarea1_key_press_event(GtkWidget   *widget,
                                GdkEventKey *event,
                                gpointer    user_data)
{
 printf("Key\n");
  return FALSE;
}

int main (int argc, char *argv[])
{
  GtkWidget *window1;
  GtkWidget *drawingarea1;
  gtk_init (&argc, &argv);
  window1 = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  drawingarea1 = gtk_drawing_area_new();
  gtk_widget_add_events (drawingarea1,  
                    GDK_BUTTON_PRESS_MASK |
GDK_KEY_PRESS_MASK);
  gtk_container_add (GTK_CONTAINER (window1),
drawingarea1);
  
  g_signal_connect ((gpointer) drawingarea1,
"button_press_event",
                    G_CALLBACK
(on_drawingarea1_button_press_event),
                    NULL);
  g_signal_connect ((gpointer) drawingarea1,
"key_press_event",
                    G_CALLBACK
(on_drawingarea1_key_press_event),
                    NULL);
  gtk_widget_show (drawingarea1);
  gtk_widget_show (window1);

  gtk_main ();
  return 0;
}
</code>