wm_getdialogitem.c

成功移植到s3c44b0开发板上的ucos-ii和lwip

/*
*********************************************************************************************************
*                                                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_GetParent.c
Purpose     : Windows manager, add. module
----------------------------------------------------------------------
*/

#include "WM_Intern.h"

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

/*******************************************************************
*
*       Public code
*
********************************************************************
*/
/*******************************************************************
*
*       WM__GetDialogItem

  Recursively scan window and its child windows until dialog item is
  found or all children have been scanned.
*/
static WM_HWIN _GetDialogItem(WM_HWIN hWin, int Id) {
  WM_HWIN hi;
  WM_HWIN r =0;
  WM_Obj* pWin = WM_H2P(hWin);
  hi = pWin->hFirstChild;
  while (hi) {
    /* This windows Id matching ? */
    if (WM_GetId(hi) == Id) {
      return hi;
    }
    /* Any child windows Id matching ? */
    if ((r = _GetDialogItem(hi, Id)) != 0) {
      break;
    }
    hi = WM_HANDLE2PTR(hi)->hNext;
  }
  return r;
}

/*********************************************************************
*
*       WM_GetDialogItem
*/
WM_HWIN WM_GetDialogItem(WM_HWIN hWin, int Id) {
  WM_HWIN r = 0;
  if (hWin) {
    WM_LOCK();
    r = _GetDialogItem(hWin, Id);
    WM_UNLOCK();
  }
  return r;
}

#else                                       /* Avoid empty object files */
  void WM_DialogItem_C(void) {}
#endif   /* GUI_WINSUPPORT */

/*************************** End of file ****************************/