wm_getdialogitem.c

MCB2300_ucgui_LCD320240.rar LPC2368的uc/gui的移植

/*
*********************************************************************************************************
*   											 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 ****************************/