添加关闭窗口快捷键

src/main.c

@@ -104,6 +104,15 @@ void select_tag(const user_action_arg_t *arg) {
   arrange(current_monitor);
 }
 
+void kill_client(const user_action_arg_t *arg) {
+  client_t *client = current_monitor->selected_client;
+  if (!client) return;
+
+  if (!send_event(client->window, get_xcb_atom(atom_wm_delete))) {
+    kill_window(client->window);
+  }
+}
+
 /* 调试函数，开发完成后删除 */
 static void print_monitor_list_info(monitor_t *monitor_list) {
   logger("========================= monitor info =========================\n");