From: Philip Zander <philip.zander@gmail.com>
Date: Sat, 29 Jan 2022 21:36:40 +0000 (+0100)
Subject: gdkkeys-win32: Ignore CTRL bit for key translation
X-Git-Tag: archive/raspbian/4.6.5+ds-1+rpi1~1^2~19^2~4^2~32^2
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=90ab8b8dd3133fdc29988979b96408867237ad3b;p=gtk4.git

gdkkeys-win32: Ignore CTRL bit for key translation

Some keymaps on Windows contain bogus mappings for Ctrl+key for certain
keys, e.g. Ctrl+Backspace = Delete, or Ctrl+[ = 0x1B. These are never
used on Windows, so we should ignore them.

Fixes #4667
---

diff --git a/gdk/win32/gdkkeys-win32-impl.c b/gdk/win32/gdkkeys-win32-impl.c
index 2e2a382d0a..51ed1f6381 100644
--- a/gdk/win32/gdkkeys-win32-impl.c
+++ b/gdk/win32/gdkkeys-win32-impl.c
@@ -340,6 +340,13 @@ vk_to_char_fuzzy (GdkWin32KeymapLayoutInfo *info,
           if (candidate_modbits & ~mod_bits)
             continue;
 
+          /* Some keys have bogus mappings for the control key, e.g.
+           * Ctrl + Backspace = Delete, or Ctrl + [ = 0x1B. These are
+           * never used on Windows, so we ignore them.
+           */
+          if (candidate_modbits == KBDCTRL)
+            continue;
+
           c = entry->wch[level];
           if (c == WCH_DEAD || have_sgcaps)
             {