Attached is a gtk2 program which sets the "primary selection". As written, it should set the selection to be a string of "length" 6: "\0\0\0\0\0\0". Middle clicking in xterm does not cause anything to be pasted, and it does not crash. I recommend that this bug is closed. (As an afterthought, I note that we're talking different graphics libraries here: gtk and qt(kde)). Justin
CFLAGS=-I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/include/freetype2 -I/usr/X11R6/include -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -Wl,--export-dynamic -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lm -lpangoxft-1.0 -lpangox-1.0 -lpango-1.0 -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0 CFLAGS+=-O3 -W all: gtkcopy
// file:///usr/share/doc/libgtk2.0-doc/gtk-tutorial/x1893.html #include <stdlib.h> #include <gtk/gtk.h> #include <time.h> #include <string.h>
GtkWidget *selection_button;
GtkWidget *selection_widget;
/* Callback when the user toggles the selection */
static void selection_toggled(GtkWidget *widget,
gint *have_selection)
{
if (GTK_TOGGLE_BUTTON (widget)->active) {
*have_selection = gtk_selection_owner_set (selection_widget,
GDK_SELECTION_PRIMARY,
GDK_CURRENT_TIME);
/* if claiming the selection failed, we return the
* button to the out state */
if (!*have_selection)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), FALSE);
} else {
if (*have_selection) {
/* Before clearing the selection by setting the
* owner to NULL, we check if we are the actual
* owner
*/
if (gdk_selection_owner_get(GDK_SELECTION_PRIMARY) == widget->window)
gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, GDK_CURRENT_TIME);
*have_selection = FALSE;
}
}
}
/* Called when another application claims the selection */
static gboolean selection_clear(GtkWidget *widget, GdkEventSelection *event,
gint *have_selection )
{
*have_selection = FALSE;
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON (selection_button), FALSE);
return TRUE;
}
/* Supplies the current time as the selection. */
static void selection_handle(GtkWidget *widget,
GtkSelectionData *selection_data,
guint info,
guint time_stamp,
gpointer data)
{
gchar *timestr;
time_t current_time;
current_time = time(NULL);
timestr = asctime (localtime (¤t_time));
/* When we return a single string, it should not be
* null terminated. That will be done for us. */
timestr="\0\0\0\0\0\0";
gtk_selection_data_set(selection_data, GDK_SELECTION_TYPE_STRING,
8, timestr, 6);
}
int main(int argc, char *argv[])
{
GtkWidget *window;
static int have_selection = FALSE;
gtk_init (&argc, &argv);
/* Create the toplevel window */
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), "Event Box");
gtk_container_set_border_width (GTK_CONTAINER (window), 10);
g_signal_connect (G_OBJECT (window), "destroy",
G_CALLBACK (exit), NULL);
/* Create a toggle button to act as the
* selection */
selection_widget = gtk_invisible_new ();
selection_button = gtk_toggle_button_new_with_label ("Claim Selection");
gtk_container_add (GTK_CONTAINER (window), selection_button);
gtk_widget_show (selection_button);
g_signal_connect (G_OBJECT (selection_button), "toggled",
G_CALLBACK (selection_toggled), (gpointer) &have_selection);
g_signal_connect (G_OBJECT (selection_widget), "selection_clear_event",
G_CALLBACK (selection_clear), (gpointer) &have_selection);
gtk_selection_add_target (selection_widget,
GDK_SELECTION_PRIMARY,
GDK_SELECTION_TYPE_STRING,
1);
g_signal_connect (G_OBJECT (selection_widget), "selection_get",
G_CALLBACK (selection_handle), (gpointer) &have_selection);
gtk_widget_show (selection_button);
gtk_widget_show (window);
gtk_main ();
return 0;
}
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