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#include <stdlib.h>
#include <gtk/gtk.h>
static gint num_monitors;
static void
request (GtkWidget *widget,
GdkEventMotion *event,
gpointer user_data)
{
gchar *str;
gint i = gdk_screen_get_monitor_at_window (gtk_widget_get_screen (widget),
widget->window);
if (i < 0)
str = g_strdup ("<big><span foreground='white' background='black'>Not on a monitor </span></big>");
else
{
GdkRectangle monitor;
gdk_screen_get_monitor_geometry (gtk_widget_get_screen (widget), i, &monitor);
str = g_strdup_printf ("<big><span foreground='white' background='black'>"
"Monitor %d of %d</span></big>\n"
"<i>Width - Height </i>: (%d,%d)\n"
"<i>Top left coordinate </i>: (%d,%d)",i+1, num_monitors,
monitor.width, monitor.height, monitor.x, monitor.y);
}
gtk_label_set_markup (GTK_LABEL (user_data), str);
g_free (str);
}
int
main (int argc, char *argv[])
{
GtkWidget *window, *label, *vbox, *button;
GdkScreen *screen;
gint i;
gtk_init (&argc, &argv);
screen = gdk_get_default_screen ();
num_monitors = gdk_screen_get_n_monitors (screen);
if (num_monitors == 1)
g_warning ("The default screen of the current display only has one monitor.");
for (i=0; i<num_monitors; i++)
{
GdkRectangle monitor;
gchar *str;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gdk_screen_get_monitor_geometry (screen, i, &monitor);
gtk_window_set_default_size (GTK_WINDOW (window), 200, 200);
gtk_window_move (GTK_WINDOW (window), (monitor.width - 200) / 2 + monitor.x,
(monitor.height - 200) / 2 + monitor.y);
label = gtk_label_new (NULL);
str = g_strdup_printf ("<big><span foreground='white' background='black'>"
"Monitor %d of %d</span></big>\n"
"<i>Width - Height </i>: (%d,%d)\n"
"<i>Top left coordinate </i>: (%d,%d)",i+1, num_monitors,
monitor.width, monitor.height, monitor.x, monitor.y);
gtk_label_set_markup (GTK_LABEL (label), str);
g_free (str);
button = gtk_button_new_with_label ("Close");
g_signal_connect (G_OBJECT (button), "clicked", G_CALLBACK (gtk_main_quit), NULL);
g_signal_connect (G_OBJECT (window), "configure-event", G_CALLBACK (request), label);
vbox = gtk_vbox_new (TRUE, 1);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_container_add (GTK_CONTAINER (vbox), label);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show_all (window);
}
gtk_main ();
return 0;
}
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