From abcaa16c897678fa3fa4cda3f23660e4ca46b841 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sun, 5 Apr 2020 21:44:07 +0800
Subject: ...

---
 include/cru/win/native/window.hpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'include/cru/win/native')

diff --git a/include/cru/win/native/window.hpp b/include/cru/win/native/window.hpp
index a137463b..a27a3384 100644
--- a/include/cru/win/native/window.hpp
+++ b/include/cru/win/native/window.hpp
@@ -156,6 +156,11 @@ class WinNativeWindow : public WinNativeResource, public virtual INativeWindow {
   Event<std::string> char_event_;
 
   Event<WindowNativeMessageEventArgs&> native_message_event_;
+
+  // WM_CHAR may be sent twice successively with two utf-16 code units of
+  // surrogate pair when character is from supplementary planes. This field is
+  // used to save the previous one.
+  wchar_t last_wm_char_event_wparam_;
 };
 
 class WinNativeWindowResolver : public WinNativeResource,
-- 
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