From c385d8870893f84be4e6a249af38c2c881ee4fd3 Mon Sep 17 00:00:00 2001
From: rustdesk <info@rustdesk.com>
Date: Sun, 1 Aug 2021 14:51:53 +0800
Subject: [PATCH] https://github.com/rustdesk/rustdesk/issues/133
 https://github.com/rustdesk/rustdesk/issues/112
 https://github.com/rustdesk/rustdesk/issues/43

---
 libs/enigo/src/macos/macos_impl.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libs/enigo/src/macos/macos_impl.rs b/libs/enigo/src/macos/macos_impl.rs
index bb4875c08..ac0bb3687 100644
--- a/libs/enigo/src/macos/macos_impl.rs
+++ b/libs/enigo/src/macos/macos_impl.rs
@@ -690,6 +690,9 @@ impl Enigo {
             return std::ptr::null() as _;
         }
         let keyboard_layout = unsafe { CFDataGetBytePtr(layout_data) };
+        if keyboard_layout.is_null() {
+            return std::ptr::null() as _;
+        }
 
         let mut keys_down: UInt32 = 0;
         let mut chars: u16 = 0;