/*
*********************************************************************************************************
*                                             uC/GUI V3.98
*                        Universal graphic software for embedded applications
*
*                       (c) Copyright 2002, Micrium Inc., Weston, FL
*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
*              µC/GUI is protected by international copyright laws. Knowledge of the
*              source code may not be used to write a similar product. This file may
*              only be used in accordance with a license and should not be redistributed
*              in any way. We appreciate your understanding and fairness.
*
----------------------------------------------------------------------
File        : GUI_HOOK.h
Purpose     : Hook handling routines
--------------------END-OF-HEADER-------------------------------------
*/

#ifndef GUI_HOOK_H
#define GUI_HOOK_H

#include "WM_Intern.h"

#if GUI_WINSUPPORT

#if defined(__cplusplus)
extern "C" {     /* Make sure we have C-declarations in C++ programs */
#endif

/*********************************************************************
*
*       Types
*
**********************************************************************
*/

typedef int GUI_HOOK_FUNC(WM_MESSAGE* pMsg);

typedef struct GUI_HOOK {
  struct GUI_HOOK* pNext;
  GUI_HOOK_FUNC*   pHookFunc;
} GUI_HOOK;

/*********************************************************************
*
*       Functions
*
**********************************************************************
*/

void GUI_HOOK_Add   (GUI_HOOK** ppFirstHook, GUI_HOOK* pNewHook, GUI_HOOK_FUNC* pHookFunc);
void GUI_HOOK_Remove(GUI_HOOK** ppFirstHook, GUI_HOOK* pHook);

#if defined(__cplusplus)
  }
#endif

#endif   /* GUI_WINSUPPORT */
#endif   /* GUI_HOOK_H */

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