Problem with XID]

[Andre Lerche <a lerche gmx net>]

Hi List!

Currently I play a little bit with events/signals and wrote the following
program to send events to itself (this doesn't make much sense, it's only
for learning). If I try get the xid of my window with
gtk_widget_get_root_window and GDK_DRAWABLE_XID (drawable), the event is thrown,
but never receives. It works only if I search for the xid for example with
xwininfo and add it manual. What's causing this and how can I get the right
xid within gdk/gtk? I am using gtk 2.2.1-4 on Redhat 9.

Thanks in advance,

Andre

#include <gtk/gtk.h>
#include <gdk/gdkx.h>
#include <X11/Xutil.h>

typedef struct _details details;

struct _details {
    GtkWidget *window;
    GtkWidget *frame;
    Window xid;
};

int ButtonPressEvent (GtkWidget *widget, GdkEventCrossing *event, gpointer data) {
    GtkWidget *win;
    gboolean send;
    GdkEventClient ev;
    details *p = data;
    win = gtk_invisible_new ();
    gtk_widget_realize (win);
    ev.type = GDK_CLIENT_EVENT;
    ev.window = win->window;
    ev.send_event = TRUE;
    ev.message_type = gdk_atom_intern ("MEVENT", FALSE);
    ev.data_format = 8;
    strcpy (ev.data.b, "reload");
    send = gdk_event_send_client_message ((GdkEvent *)  &ev, (GdkNativeWindow) p->xid);
    //if I add the XID manually, it works 
    //send = gdk_event_send_client_message ((GdkEvent *)  &ev, (GdkNativeWindow) 0x3000002);
    gdk_flush ();
    if (send) {
        g_message ("Event OK");
    } else {
        g_message ("Event could not be send");
    }
    gtk_widget_destroy (win);
}

int ClientEvent (GtkWidget *widget, GdkEventCrossing *ev, gpointer data ) {
    g_message ("Client event received");
}

int main (int argc, char *argv[]) {
    GdkDrawable *drawable;
    details *p;
    gtk_init (&argc, &argv);
    p = g_new0 (details, 1);
    p->window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    p->frame = gtk_frame_new (NULL);
    gtk_container_add (GTK_CONTAINER(p->window), p->frame);
    gtk_widget_show_all (p->window);
    gtk_widget_set_size_request (p->window, 100, 100);
    gtk_widget_add_events (p->window, GDK_ALL_EVENTS_MASK);
    drawable = gtk_widget_get_root_window (p->frame);
    p->xid = GDK_DRAWABLE_XID (drawable);
    g_signal_connect (p->window, "button-press-event", G_CALLBACK(ButtonPressEvent), p);
    g_signal_connect (p->window, "client-event", G_CALLBACK (ClientEvent), NULL);
    gtk_main ();
}