1 files changed, 31 insertions, 0 deletions
diff --git a/src/glut/os2/glut_modifier.cpp b/src/glut/os2/glut_modifier.cpp
new file mode 100644
index 0000000000..0ffa5a6801
--- /dev/null
+++ b/src/glut/os2/glut_modifier.cpp
@@ -0,0 +1,31 @@
+
+/* Copyright (c) Mark J. Kilgard, 1994. */
+
+/* This program is freely distributable without licensing fees
+   and is provided without guarantee or warrantee expressed or
+   implied. This program is -not- in the public domain. */
+
+#include "glutint.h"
+
+/* CENTRY */
+int GLUTAPIENTRY
+glutGetModifiers(void)
+{
+  int modifiers;
+
+  if(__glutModifierMask == (unsigned int) ~0) {
+    __glutWarning(
+      "glutCurrentModifiers: do not call outside core input callback.");
+    return 0;
+  }
+  modifiers = 0;
+  if(__glutModifierMask & (ShiftMask|LockMask))
+    modifiers |= GLUT_ACTIVE_SHIFT;
+  if(__glutModifierMask & ControlMask)
+    modifiers |= GLUT_ACTIVE_CTRL;
+  if(__glutModifierMask & Mod1Mask)
+    modifiers |= GLUT_ACTIVE_ALT;
+  return modifiers;
+}
+
+/* ENDCENTRY */