/* Copyright (c) Dietmar Planitzer, 1998, 2002 */

/* 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. */

#import "macx_glut.h"

#import "GLUTView.h"

/* Modifier mask of ~0 implies not in core input callback. */

unsigned int __glutModifierMask = (unsigned int) ~0;

/* CENTRY */

int APIENTRY glutGetModifiers(void)

{

   int  modifiers;

   if(__glutModifierMask == (unsigned int) ~0) {

      __glutWarning("glutCurrentModifiers: do not call outside core input callback.");

      return 0;

   }

   modifiers = 0;

   if(__glutModifierMask & NSShiftKeyMask)

      modifiers |= GLUT_ACTIVE_SHIFT;

   if(__glutModifierMask & NSControlKeyMask)

      modifiers |= GLUT_ACTIVE_CTRL;

   if(__glutModifierMask & NSAlternateKeyMask)

      modifiers |= GLUT_ACTIVE_ALT;

   return modifiers;

}

/* ENDCENTRY */