From 9df6dc2aeb37682a2ef1906e04b9e0436e63a6ba Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Wed, 15 May 2024 14:59:13 +0200
Subject: Fix uses of isupper() and isprint() - STR #3436

---
 src/Fl_MacOS_Sys_Menu_Bar.mm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/Fl_MacOS_Sys_Menu_Bar.mm')

diff --git a/src/Fl_MacOS_Sys_Menu_Bar.mm b/src/Fl_MacOS_Sys_Menu_Bar.mm
index 4cc6280d7..788f8b61e 100644
--- a/src/Fl_MacOS_Sys_Menu_Bar.mm
+++ b/src/Fl_MacOS_Sys_Menu_Bar.mm
@@ -174,7 +174,7 @@ const char *Fl_Mac_App_Menu::quit = "Quit %@";
 {
   NSUInteger macMod = 0;
   if ( value & FL_META ) macMod = NSEventModifierFlagCommand;
-  if ( value & FL_SHIFT || isupper(value) ) macMod |= NSEventModifierFlagShift;
+  if ( value & FL_SHIFT || (value > 0 && value < 127 && isupper(value)) ) macMod |= NSEventModifierFlagShift;
   if ( value & FL_ALT ) macMod |= NSEventModifierFlagOption;
   if ( value & FL_CTRL ) macMod |= NSEventModifierFlagControl;
   [super setKeyEquivalentModifierMask:macMod];
-- 
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