From: Volker Rümelin <vr_q...@t-online.de>
There is no way to grab the Ctrl-Alt-Del key combination on
Windows. This key combination will leave all three keys in a
stuck condition. This patch uses the grab-broken-event to
release the keys.
Signed-off-by: Volker Rümelin <vr_q...@t-online.de>
Message-id: 20200516072014.7766-3-vr_q...@t-online.de
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
---
ui/gtk.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/ui/gtk.c b/ui/gtk.c
index a0b10a140330..655b26de384e 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -1142,6 +1142,25 @@ static gboolean gd_key_event(GtkWidget *widget,
GdkEventKey *key, void *opaque)
return TRUE;
}
+static gboolean gd_grab_broken_event(GtkWidget *widget,
+ GdkEventGrabBroken *event, void *opaque)
+{
+#ifdef CONFIG_WIN32
+ /*
+ * On Windows the Ctrl-Alt-Del key combination can't be grabbed. This
+ * key combination leaves all three keys in a stuck condition. We use
+ * the grab-broken-event to release all keys.
+ */
+ if (event->keyboard) {
+ VirtualConsole *vc = opaque;
+ GtkDisplayState *s = vc->s;
+
+ gtk_release_modifiers(s);
+ }
+#endif
+ return TRUE;
+}
+
static gboolean gd_event(GtkWidget *widget, GdkEvent *event, void *opaque)
{
if (event->type == GDK_MOTION_NOTIFY) {
@@ -1910,6 +1929,8 @@ static void gd_connect_vc_gfx_signals(VirtualConsole *vc)
G_CALLBACK(gd_focus_out_event), vc);
g_signal_connect(vc->gfx.drawing_area, "configure-event",
G_CALLBACK(gd_configure), vc);
+ g_signal_connect(vc->gfx.drawing_area, "grab-broken-event",
+ G_CALLBACK(gd_grab_broken_event), vc);
} else {
g_signal_connect(vc->gfx.drawing_area, "key-press-event",
G_CALLBACK(gd_text_key_down), vc);
--
2.18.4
