wm_broadcast.c

在ucos上实现了图形用户接口GUI；值得一看

/*
*********************************************************************************************************
*                                                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_Broadcast.C
Purpose     : Windows manager, add. module
----------------------------------------------------------------------
*/


#include "WM_Intern.H"

#if GUI_WINSUPPORT    /* If 0, WM will not generate any code */

/*********************************************************************
*
*                   Broadcast message
*
**********************************************************************
*/


int WM_BroadcastMessage( WM_MESSAGE* pMsg) {
  WM_HWIN hWin;
  WM_LOCK();
  for (hWin = WM__FirstWin; hWin; ) {
    WM_SendMessage(hWin, pMsg);
    hWin = WM_H2P(hWin)->hNextLin;
  }
  WM_UNLOCK();
  return 0;
}

#else

void WM_Broadcast(void) {} /* avoid empty object files */

#endif /* WM_MAX_WINDOW */