1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
/* testvolumebutton.c
* Copyright (C) 2007 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <gtk/gtk.h>
static void
value_changed (GtkWidget *button,
gdouble volume,
gpointer user_data)
{
g_message ("volume changed to %f", volume);
}
static void
response_cb (GtkDialog *dialog,
gint arg1,
gpointer user_data)
{
gtk_widget_destroy (GTK_WIDGET (dialog));
}
static gboolean
show_error (gpointer data)
{
GtkWindow *window = (GtkWindow *) data;
GtkWidget *dialog;
g_message ("showing error");
dialog = gtk_message_dialog_new (window,
GTK_DIALOG_MODAL,
GTK_MESSAGE_INFO,
GTK_BUTTONS_CLOSE,
"This should have unbroken the grab");
g_signal_connect (G_OBJECT (dialog),
"response",
G_CALLBACK (response_cb), NULL);
gtk_widget_show (dialog);
return FALSE;
}
int main (int argc, char **argv)
{
GtkWidget *window;
GtkWidget *button;
GtkWidget *button2;
GtkWidget *box;
gtk_init (&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
button = gtk_volume_button_new ();
button2 = gtk_volume_button_new ();
box = gtk_hbox_new (FALSE, 0);
g_signal_connect (G_OBJECT (button),
"value-changed",
G_CALLBACK (value_changed), NULL);
gtk_container_add (GTK_CONTAINER (window), box);
gtk_container_add (GTK_CONTAINER (box), button);
gtk_container_add (GTK_CONTAINER (box), button2);
gtk_widget_show_all (window);
gtk_button_clicked (GTK_BUTTON (button));
g_timeout_add (4000, (GSourceFunc) show_error, window);
gtk_main ();
return 0;
}
|
