From a4b31fffa75b94adb3622698a9610c50667ff9e5 Mon Sep 17 00:00:00 2001
From: Sergio Gil <sgilperez@gmail.com>
Date: Fri, 14 Nov 2025 14:53:19 +0100
Subject: [PATCH] Support Unicode input by calling `wget_wch` instead of
 `wgetch`

---
 src/lib_ncurses.cr    |  2 +-
 src/ncurses.cr        |  5 +++--
 src/ncurses/window.cr | 12 +++++++++---
 3 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/lib_ncurses.cr b/src/lib_ncurses.cr
index c98d44e..325cc67 100644
--- a/src/lib_ncurses.cr
+++ b/src/lib_ncurses.cr
@@ -66,7 +66,7 @@ lib LibNCurses
   fun wtimeout(window : Window, timeout : LibC::Int)
 
   # Input functions
-  fun wgetch(window : Window) : LibC::Int
+  fun wget_wch(window : Window, wch : LibC::UInt*) : LibC::Int
   fun flushinp : LibC::Int
 
   # Mouse functions
diff --git a/src/ncurses.cr b/src/ncurses.cr
index a723bf8..68ea63a 100644
--- a/src/ncurses.cr
+++ b/src/ncurses.cr
@@ -16,8 +16,9 @@ module NCurses
   alias Color = LibNCurses::Color
 
   # Possible integer result values
-  ERR = -1
-  OK  =  0
+  ERR          = -1
+  OK           =  0
+  KEY_CODE_YES = 0o400
 
   BORDER_DEFAULT = 0.chr
 
diff --git a/src/ncurses/window.cr b/src/ncurses/window.cr
index 4adf3af..fb9afb1 100644
--- a/src/ncurses/window.cr
+++ b/src/ncurses/window.cr
@@ -232,10 +232,16 @@ module NCurses
     #
     # Returned as `Key` if recognised, `Char` otherwise
     #
-    # Wrapper for `wgetch()` (`getch()`)
+    # Wrapper for `wget_wch()` (`get_wch()`)
     def get_char : Key | Char | Nil
-      return nil if (key = LibNCurses.wgetch(self)) == ERR
-      return Key.from_value?(key) || key.chr
+      case LibNCurses.wget_wch(self, out key)
+      when OK # key is a character
+        key.chr
+      when KEY_CODE_YES # key is a special key
+        Key.from_value?(key)
+      else # ERR or something else unexpected
+        nil
+      end
     end
 
     # Get a character input for main loop