+static int current_led_state(VncState *vs)
+{
+ int ledstate = 0;
+
+ if (vs->modifiers_state[0x46]) {
+ ledstate |= QEMU_SCROLL_LOCK_LED;
+ }
+ if (vs->modifiers_state[0x45]) {
+ ledstate |= QEMU_NUM_LOCK_LED;
+ }
+ if (vs->modifiers_state[0x3a]) {
+ ledstate |= QEMU_CAPS_LOCK_LED;
+ }
+
+ return ledstate;
+}
+
+static void vnc_led_state_change(VncState *vs)
+{
+ int ledstate = 0;
+
+ if (!vnc_has_feature(vs, VNC_FEATURE_LED_STATE)) {
+ return;
+ }
+
+ ledstate = current_led_state(vs);
+ vnc_lock_output(vs);
+ vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
+ vnc_write_u8(vs, 0);
+ vnc_write_u16(vs, 1);
+ vnc_framebuffer_update(vs, 0, 0, 1, 1, VNC_ENCODING_LED_STATE);
+ vnc_write_u8(vs, ledstate);
+ vnc_unlock_output(vs);
+ vnc_flush(vs);
+}
+