From 95e8b639883a6f4d61ba48a5f4fa0ed80446d353 Mon Sep 17 00:00:00 2001
From: andy <andy>
Date: Thu, 1 Apr 2004 23:28:47 +0000
Subject: [PATCH] I was too agressive in the fg_os port.  Glut doesn't support
 grabbing the keyboard modifiers outside of a key event handler, so adding the
 fgGetKeyModifiers() call to doMouseMotion was broken.  The user could see
 "phantom" modifier keys.

---
 src/Input/input.cxx | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Input/input.cxx b/src/Input/input.cxx
index 6253a2990..744135836 100644
--- a/src/Input/input.cxx
+++ b/src/Input/input.cxx
@@ -304,7 +304,10 @@ FGInput::doMouseClick (int b, int updown, int x, int y)
 void
 FGInput::doMouseMotion (int x, int y)
 {
-  int modifiers = fgGetKeyModifiers();
+  // Don't call fgGetKeyModifiers() here, until we are using a
+  // toolkit that supports getting the mods from outside a key
+  // callback.  Glut doesn't.
+  int modifiers = KEYMOD_NONE;
 
   int xsize = fgGetInt("/sim/startup/xsize", 800);
   int ysize = fgGetInt("/sim/startup/ysize", 600);
-- 
2.39.5