wm__getprevsibling.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__GetPrevSibling.c
Purpose 	: Implementation of WM__GetPrevSibling
----------------------------------------------------------------------
*/

#include "WM_Intern.h"
#if GUI_WINSUPPORT    /* If 0, WM will not generate any code */

/*********************************************************************
*
*   	Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	WM__GetPrevSibling

  Return value: Handle of previous sibling (if any), otherwise 0
*/
WM_HWIN WM__GetPrevSibling(WM_HWIN hWin)
{
	WM_HWIN hi;
	WM_Obj* pi;
	for (hi = WM__GetFirstSibling(hWin); hi; hi = pi->hNext)
	{
		if (hi == hWin)
		{
			hi = 0; 				/* There is no previous sibling. Return 0 */
			break;
		}
		pi = WM_H2P(hi);
		if (pi->hNext == hWin)
		{
			break;  				/* We found the previous one ! */
		}
	}
	return hi;
}

#else
void WM__GetPrevSibling_C(void)
{
} /* avoid empty object files */
#endif

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