added glutPositionFunc callback, now just need to implement so it does

something
For all callbacks now using function type definitions from
fg_internal.h.
Reorganized and cleaned up fg_callbacks.c so that there are no wrong
comments in there (timers are global, not per window) and so that all
global, per menu, and per window callbacks are grouped together


git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@1474 7f0cb862-5218-0410-a997-914c9d46530a

freeglut/freeglut/include/GL/freeglut_ext.h

@@ -139,9 +139,10 @@ FGAPI void    FGAPIENTRY glutLeaveFullScreen( void );
  * Window-specific callback functions, see freeglut_callbacks.c
  */
 FGAPI void    FGAPIENTRY glutMouseWheelFunc( void (* callback)( int, int, int, int ) );
+FGAPI void    FGAPIENTRY glutPositionFunc( void (* callback)( int, int ) );
 FGAPI void    FGAPIENTRY glutCloseFunc( void (* callback)( void ) );
 FGAPI void    FGAPIENTRY glutWMCloseFunc( void (* callback)( void ) );
-/* A. Donev: Also a destruction callback for menus */
+/* And also a destruction callback for menus */
 FGAPI void    FGAPIENTRY glutMenuDestroyFunc( void (* callback)( void ) );
 
 /*
@@ -218,15 +219,13 @@ void    glutJoystickGetCenter( int ident, float *axes );
 /*
  * Initialization functions, see freeglut_init.c
  */
+/* to get the typedef for va_list */
+#include <stdarg.h>
 FGAPI void    FGAPIENTRY glutInitContextVersion( int majorVersion, int minorVersion );
 FGAPI void    FGAPIENTRY glutInitContextFlags( int flags );
 FGAPI void    FGAPIENTRY glutInitContextProfile( int profile );
-
+FGAPI void    FGAPIENTRY glutInitErrorFunc( void (* callback)( const char *fmt, va_list ap ) );
-/* to get the typedef for va_list */
+FGAPI void    FGAPIENTRY glutInitWarningFunc( void (* callback)( const char *fmt, va_list ap ) );
-#include <stdarg.h>
-
-FGAPI void    FGAPIENTRY glutInitErrorFunc( void (* vError)( const char *fmt, va_list ap ) );
-FGAPI void    FGAPIENTRY glutInitWarningFunc( void (* vWarning)( const char *fmt, va_list ap ) );
 
 /* OpenGL >= 2.0 support */
 FGAPI void    FGAPIENTRY glutSetVertexAttribCoord3(GLint attrib);

freeglut/freeglut/src/fg_callbacks.c

@@ -30,71 +30,19 @@
 
 /* -- INTERFACE FUNCTIONS -------------------------------------------------- */
 
-/*
- * All of the callbacks setting methods can be generalized to this:
- */
-#define SET_CALLBACK(a)                                         \
-do                                                              \
-{                                                               \
-    if( fgStructure.CurrentWindow == NULL )                     \
-        return;                                                 \
-    SET_WCB( ( *( fgStructure.CurrentWindow ) ), a, callback ); \
-} while( 0 )
 
 /*
- * Sets the Display callback for the current window
+ * Global callbacks.
  */
-void FGAPIENTRY glutDisplayFunc( void (* callback)( void ) )
+/* Sets the global idle callback */
-{
+void FGAPIENTRY glutIdleFunc( FGCBIdle callback )
-    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutDisplayFunc" );
-    if( !callback )
-        fgError( "Fatal error in program.  NULL display callback not "
-                 "permitted in GLUT 3.0+ or freeglut 2.0.1+" );
-    SET_CALLBACK( Display );
-}
-
-/*
- * Sets the Reshape callback for the current window
- */
-void FGAPIENTRY glutReshapeFunc( void (* callback)( int, int ) )
-{
-    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutReshapeFunc" );
-    SET_CALLBACK( Reshape );
-}
-
-/*
- * Sets the Keyboard callback for the current window
- */
-void FGAPIENTRY glutKeyboardFunc( void (* callback)
-                                  ( unsigned char, int, int ) )
-{
-    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutKeyboardFunc" );
-    SET_CALLBACK( Keyboard );
-}
-
-/*
- * Sets the Special callback for the current window
- */
-void FGAPIENTRY glutSpecialFunc( void (* callback)( int, int, int ) )
-{
-    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSpecialFunc" );
-    SET_CALLBACK( Special );
-}
-
-/*
- * Sets the global idle callback
- */
-void FGAPIENTRY glutIdleFunc( void (* callback)( void ) )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutIdleFunc" );
     fgState.IdleCallback = callback;
 }
 
-/*
+/* Creates a timer and sets its callback */
- * Sets the Timer callback for the current window
+void FGAPIENTRY glutTimerFunc( unsigned int timeOut, FGCBTimer callback, int timerID )
- */
-void FGAPIENTRY glutTimerFunc( unsigned int timeOut, void (* callback)( int ),
-                               int timerID )
 {
     SFG_Timer *timer, *node;
 
@@ -124,6 +72,101 @@ void FGAPIENTRY glutTimerFunc( unsigned int timeOut, void (* callback)( int ),
     fgListInsert( &fgState.Timers, &node->Node, &timer->Node );
 }
 
+/* Deprecated version of glutMenuStatusFunc callback setting method */
+void FGAPIENTRY glutMenuStateFunc( FGCBMenuState callback )
+{
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMenuStateFunc" );
+    fgState.MenuStateCallback = callback;
+}
+
+/* Sets the global menu status callback for the current window */
+void FGAPIENTRY glutMenuStatusFunc( FGCBMenuStatus callback )
+{
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMenuStatusFunc" );
+    fgState.MenuStatusCallback = callback;
+}
+
+
+/*
+ * Menu specific callbacks.
+ */
+/* Callback upon menu destruction */
+void FGAPIENTRY glutMenuDestroyFunc( FGCBDestroy callback )
+{
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMenuDestroyFunc" );
+    if( fgStructure.CurrentMenu )
+        fgStructure.CurrentMenu->Destroy = callback;
+}
+
+
+/*
+ * All of the window-specific callbacks setting methods can be generalized to this:
+ */
+#define SET_CALLBACK(a)                                         \
+do                                                              \
+{                                                               \
+    if( fgStructure.CurrentWindow == NULL )                     \
+        return;                                                 \
+    SET_WCB( ( *( fgStructure.CurrentWindow ) ), a, callback ); \
+} while( 0 )
+
+/*
+ * Sets the Display callback for the current window
+ */
+void FGAPIENTRY glutDisplayFunc( FGCBDisplay callback )
+{
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutDisplayFunc" );
+    if( !callback )
+        fgError( "Fatal error in program.  NULL display callback not "
+                 "permitted in GLUT 3.0+ or freeglut 2.0.1+" );
+    SET_CALLBACK( Display );
+}
+
+/*
+ * Sets the Reshape callback for the current window
+ */
+void FGAPIENTRY glutReshapeFunc( FGCBReshape callback )
+{
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutReshapeFunc" );
+    SET_CALLBACK( Reshape );
+}
+
+/*
+ * Sets the Keyboard callback for the current window
+ */
+void FGAPIENTRY glutKeyboardFunc( FGCBKeyboard callback )
+{
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutKeyboardFunc" );
+    SET_CALLBACK( Keyboard );
+}
+
+/*
+ * Sets the keyboard key release callback for the current window
+ */
+void FGAPIENTRY glutKeyboardUpFunc( FGCBKeyboardUp callback )
+{
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutKeyboardUpFunc" );
+    SET_CALLBACK( KeyboardUp );
+}
+
+/*
+ * Sets the Special callback for the current window
+ */
+void FGAPIENTRY glutSpecialFunc( FGCBSpecial callback )
+{
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSpecialFunc" );
+    SET_CALLBACK( Special );
+}
+
+/*
+ * Sets the special key release callback for the current window
+ */
+void FGAPIENTRY glutSpecialUpFunc( FGCBSpecialUp callback )
+{
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSpecialUpFunc" );
+    SET_CALLBACK( SpecialUp );
+}
+
 /*
  * Sets the Visibility callback for the current window.
  */
@@ -139,7 +182,7 @@ static void fghVisibility( int status )
     INVOKE_WCB( *( fgStructure.CurrentWindow ), Visibility, ( glut_status ) );
 }
 
-void FGAPIENTRY glutVisibilityFunc( void (* callback)( int ) )
+void FGAPIENTRY glutVisibilityFunc( FGCBVisibility callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutVisibilityFunc" );
     SET_CALLBACK( Visibility );
@@ -150,31 +193,10 @@ void FGAPIENTRY glutVisibilityFunc( void (* callback)( int ) )
         glutWindowStatusFunc( NULL );
 }
 
-/*
- * Sets the keyboard key release callback for the current window
- */
-void FGAPIENTRY glutKeyboardUpFunc( void (* callback)
-                                    ( unsigned char, int, int ) )
-{
-    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutKeyboardUpFunc" );
-    SET_CALLBACK( KeyboardUp );
-}
-
-/*
- * Sets the special key release callback for the current window
- */
-void FGAPIENTRY glutSpecialUpFunc( void (* callback)( int, int, int ) )
-{
-    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSpecialUpFunc" );
-    SET_CALLBACK( SpecialUp );
-}
-
 /*
  * Sets the joystick callback and polling rate for the current window
  */
-void FGAPIENTRY glutJoystickFunc( void (* callback)
+void FGAPIENTRY glutJoystickFunc( FGCBJoystick callback, int pollInterval )
-                                  ( unsigned int, int, int, int ),
-                                  int pollInterval )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickFunc" );
     fgInitialiseJoysticks ();
@@ -201,7 +223,7 @@ void FGAPIENTRY glutJoystickFunc( void (* callback)
 /*
  * Sets the mouse callback for the current window
  */
-void FGAPIENTRY glutMouseFunc( void (* callback)( int, int, int, int ) )
+void FGAPIENTRY glutMouseFunc( FGCBMouse callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMouseFunc" );
     SET_CALLBACK( Mouse );
@@ -210,7 +232,7 @@ void FGAPIENTRY glutMouseFunc( void (* callback)( int, int, int, int ) )
 /*
  * Sets the mouse wheel callback for the current window
  */
-void FGAPIENTRY glutMouseWheelFunc( void (* callback)( int, int, int, int ) )
+void FGAPIENTRY glutMouseWheelFunc( FGCBMouseWheel callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMouseWheelFunc" );
     SET_CALLBACK( MouseWheel );
@@ -220,7 +242,7 @@ void FGAPIENTRY glutMouseWheelFunc( void (* callback)( int, int, int, int ) )
  * Sets the mouse motion callback for the current window (one or more buttons
  * are pressed)
  */
-void FGAPIENTRY glutMotionFunc( void (* callback)( int, int ) )
+void FGAPIENTRY glutMotionFunc( FGCBMotion callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMotionFunc" );
     SET_CALLBACK( Motion );
@@ -230,7 +252,7 @@ void FGAPIENTRY glutMotionFunc( void (* callback)( int, int ) )
  * Sets the passive mouse motion callback for the current window (no mouse
  * buttons are pressed)
  */
-void FGAPIENTRY glutPassiveMotionFunc( void (* callback)( int, int ) )
+void FGAPIENTRY glutPassiveMotionFunc( FGCBPassive callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPassiveMotionFunc" );
     SET_CALLBACK( Passive );
@@ -239,7 +261,7 @@ void FGAPIENTRY glutPassiveMotionFunc( void (* callback)( int, int ) )
 /*
  * Window mouse entry/leave callback
  */
-void FGAPIENTRY glutEntryFunc( void (* callback)( int ) )
+void FGAPIENTRY glutEntryFunc( FGCBEntry callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutEntryFunc" );
     SET_CALLBACK( Entry );
@@ -248,48 +270,22 @@ void FGAPIENTRY glutEntryFunc( void (* callback)( int ) )
 /*
  * Window destruction callbacks
  */
-void FGAPIENTRY glutCloseFunc( void (* callback)( void ) )
+void FGAPIENTRY glutCloseFunc( FGCBDestroy callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutCloseFunc" );
     SET_CALLBACK( Destroy );
 }
 
-void FGAPIENTRY glutWMCloseFunc( void (* callback)( void ) )
+void FGAPIENTRY glutWMCloseFunc( FGCBDestroy callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutWMCloseFunc" );
     glutCloseFunc( callback );
 }
 
-/* A. Donev: Destruction callback for menus */
-void FGAPIENTRY glutMenuDestroyFunc( void (* callback)( void ) )
-{
-    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMenuDestroyFunc" );
-    if( fgStructure.CurrentMenu )
-        fgStructure.CurrentMenu->Destroy = callback;
-}
-
-/*
- * Deprecated version of glutMenuStatusFunc callback setting method
- */
-void FGAPIENTRY glutMenuStateFunc( void (* callback)( int ) )
-{
-    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMenuStateFunc" );
-    fgState.MenuStateCallback = callback;
-}
-
-/*
- * Sets the global menu status callback for the current window
- */
-void FGAPIENTRY glutMenuStatusFunc( void (* callback)( int, int, int ) )
-{
-    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMenuStatusFunc" );
-    fgState.MenuStatusCallback = callback;
-}
-
 /*
  * Sets the overlay display callback for the current window
  */
-void FGAPIENTRY glutOverlayDisplayFunc( void (* callback)( void ) )
+void FGAPIENTRY glutOverlayDisplayFunc( FGCBOverlayDisplay callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutOverlayDisplayFunc" );
     SET_CALLBACK( OverlayDisplay );
@@ -298,7 +294,7 @@ void FGAPIENTRY glutOverlayDisplayFunc( void (* callback)( void ) )
 /*
  * Sets the window status callback for the current window
  */
-void FGAPIENTRY glutWindowStatusFunc( void (* callback)( int ) )
+void FGAPIENTRY glutWindowStatusFunc( FGCBWindowStatus callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutWindowStatusFunc" );
     SET_CALLBACK( WindowStatus );
@@ -307,7 +303,7 @@ void FGAPIENTRY glutWindowStatusFunc( void (* callback)( int ) )
 /*
  * Sets the spaceball motion callback for the current window
  */
-void FGAPIENTRY glutSpaceballMotionFunc( void (* callback)( int, int, int ) )
+void FGAPIENTRY glutSpaceballMotionFunc( FGCBSpaceMotion callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSpaceballMotionFunc" );
     fgInitialiseSpaceball();
@@ -318,7 +314,7 @@ void FGAPIENTRY glutSpaceballMotionFunc( void (* callback)( int, int, int ) )
 /*
  * Sets the spaceball rotate callback for the current window
  */
-void FGAPIENTRY glutSpaceballRotateFunc( void (* callback)( int, int, int ) )
+void FGAPIENTRY glutSpaceballRotateFunc( FGCBSpaceRotation callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSpaceballRotateFunc" );
     fgInitialiseSpaceball();
@@ -329,7 +325,7 @@ void FGAPIENTRY glutSpaceballRotateFunc( void (* callback)( int, int, int ) )
 /*
  * Sets the spaceball button callback for the current window
  */
-void FGAPIENTRY glutSpaceballButtonFunc( void (* callback)( int, int ) )
+void FGAPIENTRY glutSpaceballButtonFunc( FGCBSpaceButton callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSpaceballButtonFunc" );
     fgInitialiseSpaceball();
@@ -340,7 +336,7 @@ void FGAPIENTRY glutSpaceballButtonFunc( void (* callback)( int, int ) )
 /*
  * Sets the button box callback for the current window
  */
-void FGAPIENTRY glutButtonBoxFunc( void (* callback)( int, int ) )
+void FGAPIENTRY glutButtonBoxFunc( FGCBButtonBox callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutButtonBoxFunc" );
     SET_CALLBACK( ButtonBox );
@@ -349,7 +345,7 @@ void FGAPIENTRY glutButtonBoxFunc( void (* callback)( int, int ) )
 /*
  * Sets the dials box callback for the current window
  */
-void FGAPIENTRY glutDialsFunc( void (* callback)( int, int ) )
+void FGAPIENTRY glutDialsFunc( FGCBDials callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutDialsFunc" );
     SET_CALLBACK( Dials );
@@ -358,7 +354,7 @@ void FGAPIENTRY glutDialsFunc( void (* callback)( int, int ) )
 /*
  * Sets the tablet motion callback for the current window
  */
-void FGAPIENTRY glutTabletMotionFunc( void (* callback)( int, int ) )
+void FGAPIENTRY glutTabletMotionFunc( FGCBTabletMotion callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutTabletMotionFunc" );
     SET_CALLBACK( TabletMotion );
@@ -367,7 +363,7 @@ void FGAPIENTRY glutTabletMotionFunc( void (* callback)( int, int ) )
 /*
  * Sets the tablet buttons callback for the current window
  */
-void FGAPIENTRY glutTabletButtonFunc( void (* callback)( int, int, int, int ) )
+void FGAPIENTRY glutTabletButtonFunc( FGCBTabletButton callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutTabletButtonFunc" );
     SET_CALLBACK( TabletButton );
@@ -376,7 +372,7 @@ void FGAPIENTRY glutTabletButtonFunc( void (* callback)( int, int, int, int ) )
 /*
  * Sets the multi-pointer entry callback for the current window
  */
-void FGAPIENTRY glutMultiEntryFunc( void (* callback)(int, int ) )
+void FGAPIENTRY glutMultiEntryFunc( FGCBMultiEntry callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMultiEntryFunc" );
     SET_CALLBACK( MultiEntry );
@@ -385,7 +381,7 @@ void FGAPIENTRY glutMultiEntryFunc( void (* callback)(int, int ) )
 /*
  * Sets the multi-pointer button callback for the current window
  */
-void FGAPIENTRY glutMultiButtonFunc( void (* callback)(int, int, int, int, int ) )
+void FGAPIENTRY glutMultiButtonFunc( FGCBMultiButton callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMultiButtonFunc" );
     SET_CALLBACK( MultiButton );
@@ -394,7 +390,7 @@ void FGAPIENTRY glutMultiButtonFunc( void (* callback)(int, int, int, int, int )
 /*
  * Sets the multi-pointer motion callback for the current window
  */
-void FGAPIENTRY glutMultiMotionFunc( void (* callback)(int, int, int ) )
+void FGAPIENTRY glutMultiMotionFunc( FGCBMultiMotion callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMultiMotionFunc" );
     SET_CALLBACK( MultiMotion );
@@ -403,7 +399,7 @@ void FGAPIENTRY glutMultiMotionFunc( void (* callback)(int, int, int ) )
 /*
  * Sets the multi-pointer passive motion callback for the current window
  */
-void FGAPIENTRY glutMultiPassiveFunc( void (* callback)(int, int, int ) )
+void FGAPIENTRY glutMultiPassiveFunc( FGCBMultiPassive callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMultiPassiveFunc" );
     SET_CALLBACK( MultiPassive );
@@ -412,7 +408,7 @@ void FGAPIENTRY glutMultiPassiveFunc( void (* callback)(int, int, int ) )
 /*
  * Sets the context reload callback for the current window
  */
-void FGAPIENTRY glutInitContextFunc( void (* callback)() )
+void FGAPIENTRY glutInitContextFunc( FGCBInitContext callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutInitContextFunc" );
     SET_CALLBACK( InitContext );
@@ -421,7 +417,7 @@ void FGAPIENTRY glutInitContextFunc( void (* callback)() )
 /*
  * Sets the pause callback for the current window
  */
-void FGAPIENTRY glutPauseFunc( void (* callback)() )
+void FGAPIENTRY glutPauseFunc( FGCBPause callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPauseFunc" );
     SET_CALLBACK( Pause );
@@ -430,7 +426,7 @@ void FGAPIENTRY glutPauseFunc( void (* callback)() )
 /*
  * Sets the resume callback for the current window
  */
-void FGAPIENTRY glutResumeFunc( void (* callback)() )
+void FGAPIENTRY glutResumeFunc( FGCBResume callback )
 {
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutResumeFunc" );
     SET_CALLBACK( Resume );

freeglut/freeglut/src/fg_init.c

@@ -668,19 +668,19 @@ void FGAPIENTRY glutInitContextProfile( int profile )
 /*
  * Sets the user error handler (note the use of va_list for the args to the fmt)
  */
-void FGAPIENTRY glutInitErrorFunc( void (* vfgError) ( const char *fmt, va_list ap ) )
+void FGAPIENTRY glutInitErrorFunc( FGError callback )
 {
     /* This allows user programs to handle freeglut errors */
-    fgState.ErrorFunc = vfgError;
+    fgState.ErrorFunc = callback;
 }
 
 /*
  * Sets the user warning handler (note the use of va_list for the args to the fmt)
  */
-void FGAPIENTRY glutInitWarningFunc( void (* vfgWarning) ( const char *fmt, va_list ap ) )
+void FGAPIENTRY glutInitWarningFunc( FGWarning callback )
 {
     /* This allows user programs to handle freeglut warnings */
-    fgState.WarningFunc = vfgWarning;
+    fgState.WarningFunc = callback;
 }
 
 /*** END OF FILE ***/

freeglut/freeglut/src/fg_internal.h

@@ -191,9 +191,12 @@
 /* Freeglut callbacks type definitions */
 typedef void (* FGCBDisplay       )( void );
 typedef void (* FGCBReshape       )( int, int );
+typedef void (* FGCBPosition      )( int, int );
 typedef void (* FGCBVisibility    )( int );
 typedef void (* FGCBKeyboard      )( unsigned char, int, int );
+typedef void (* FGCBKeyboardUp    )( unsigned char, int, int );
 typedef void (* FGCBSpecial       )( int, int, int );
+typedef void (* FGCBSpecialUp     )( int, int, int );
 typedef void (* FGCBMouse         )( int, int, int, int );
 typedef void (* FGCBMouseWheel    )( int, int, int, int );
 typedef void (* FGCBMotion        )( int, int );
@@ -202,8 +205,6 @@ typedef void (* FGCBEntry         )( int );
 typedef void (* FGCBWindowStatus  )( int );
 typedef void (* FGCBSelect        )( int, int, int );
 typedef void (* FGCBJoystick      )( unsigned int, int, int, int );
-typedef void (* FGCBKeyboardUp    )( unsigned char, int, int );
-typedef void (* FGCBSpecialUp     )( int, int, int );
 typedef void (* FGCBOverlayDisplay)( void );
 typedef void (* FGCBSpaceMotion   )( int, int, int );
 typedef void (* FGCBSpaceRotation )( int, int, int );
@@ -212,7 +213,7 @@ typedef void (* FGCBDials         )( int, int );
 typedef void (* FGCBButtonBox     )( int, int );
 typedef void (* FGCBTabletMotion  )( int, int );
 typedef void (* FGCBTabletButton  )( int, int, int, int );
-typedef void (* FGCBDestroy       )( void );
+typedef void (* FGCBDestroy       )( void );    /* Used for both window and menu destroy callbacks */
 
 typedef void (* FGCBMultiEntry   )( int, int );
 typedef void (* FGCBMultiButton  )( int, int, int, int, int );

freeglut/freeglut/src/fg_menu.c

@@ -791,7 +791,7 @@ void fghCalculateMenuBoxSize( void )
 /*
  * Creates a new menu object, adding it to the freeglut structure
  */
-int FGAPIENTRY glutCreateMenu( void(* callback)( int ) )
+int FGAPIENTRY glutCreateMenu( FGCBMenu callback )
 {
     /* The menu object creation code resides in freeglut_structure.c */
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutCreateMenu" );

freeglut/freeglut/src/freeglutdll.def.in

@@ -55,6 +55,7 @@ EXPORTS
 	glutKeyboardFunc
 	glutSpecialFunc
 	glutReshapeFunc
+    glutPositionFunc
 	glutVisibilityFunc
 	glutDisplayFunc
 	glutMouseFunc