WM_SetCallback.c
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上传日期:2017-08-10
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- /*
- *********************************************************************************************************
- * uC/GUI
- * Universal graphic software for embedded applications
- *
- * (c) Copyright 2002, Micrium Inc., Weston, FL
- * (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
- *
- * 礐/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 : WM_SetCallback.C
- Purpose : Windows manager, add. module
- ----------------------------------------------------------------------
- */
- #include "WM_Intern.H"
- #if GUI_WINSUPPORT /* If 0, WM will not generate any code */
- #include "GUIDebug.h"
- #define WM_DEBUG_LEVEL 1
- /*
- ********************************************************************
- *
- * Exported routines: Set callback
- *
- ********************************************************************
- */
- WM_CALLBACK* WM_SetCallback (WM_HWIN Win, WM_CALLBACK* cb) {
- WM_CALLBACK* r;
- WM_LOCK(); {
- WM_Obj* pWin = WM_HANDLE2PTR(Win);
- if (pWin) {
- r = pWin->cb;
- pWin->cb = cb;
- }
- } WM_UNLOCK();
- return r;
- }
- #else
- void WM_SetCallBack(void) {} /* avoid empty object files */
- #endif /* WM_MAX_WINDOW */