Jedy Wang wrote:
> Hi all,
>
> The following application starts up a ???Run Application" dialog. If I use
> X11 api, the application works fine. But if I use gdk api, the dialog
> can not be started. Does anyone know if there is something wrong with
> the code? Thanks in advance.
>
> BTW:
> You can run 'cc [source] -g `pkg-config --cflags --libs gdk-2.0`' to
> build the source.
> Jedy
> ----------------------------------------------------------------->8
> #include <stdio.h>
> #include <stdlib.h>
> #include <X11/Xlib.h>
> #include <gdk/gdk.h>
> #include <gdk/gdkx.h>
>
> int main(int argc, char* argv[])
> {
> Atom gnome_panel_atom, run_atom;
>
> gdk_init(&argc, &argv);
> gnome_panel_atom = gdk_x11_get_xatom_by_name("_GNOME_PANEL_ACTION");
> run_atom = gdk_x11_get_xatom_by_name("_GNOME_PANEL_ACTION_RUN_DIALOG");
>
> if (gnome_panel_atom != None && run_atom != None) {
> #if 0
> Display *display;
> XClientMessageEvent event;
>
> display = XOpenDisplay(NULL);
> if (display == NULL)
> return 0;
> event.type = ClientMessage;
> event.window = DefaultRootWindow(display);
> event.message_type = gnome_panel_atom;
> event.format = 32;
> event.data.l[0] = run_atom;
> event.data.l[1] = (Time)(time(NULL) * 1000);
>
> XSendEvent(display, event.window, False, StructureNotifyMask,
> (XEvent *)&event);
>
The event is sent to every clients on the root window according to the
man page.
> XCloseDisplay(display);
> #else
> gint ret;
> GdkEvent *event = gdk_event_new (GDK_CLIENT_EVENT);
> ((GdkEventAny *)event)->window = gdk_get_default_root_window();
> ((GdkEventAny *)event)->send_event = TRUE;
> ((GdkEventClient *)event)->message_type =
> gdk_x11_xatom_to_atom (gnome_panel_atom);
> ((GdkEventClient *)event)->data_format = 32;
> ((GdkEventClient *)event)->data.l[0] = run_atom;
> ((GdkEventClient *)event)->data.l[1] = (Time)(time(NULL) *
> 1000);
>
> ret = gdk_event_send_client_message (event,
> GDK_WINDOW_XID
> (gdk_get_default_root_window()));
>
According to API doc, the event is only sent to the specific window. So
if you changes the code like:
...
((GdkEventClient *)event)->window = gdk_window_lookup(GDK_ROOT_WINDOW());
g_assert(((GdkEventClient *)event)->window);
((GdkEventClient *)event)->send_event = TRUE;
((GdkEventClient *)event)->message_type =
gdk_x11_xatom_to_atom (gnome_panel_atom);
((GdkEventClient *)event)->data_format = 32;
((GdkEventClient *)event)->data.l[0] = run_atom;
((GdkEventClient *)event)->data.l[1] = (Time)(time(NULL) * 1000);
gdk_event_send_clientmessage_toall(event);
...
It works.
lin
> fprintf(stderr, "%d\n", ret);
> gdk_event_free (event);
> #endif
> }
>
> return 0;
> }
>
>
>
> ------------------------------------------------------------------------
>
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