dropdown_setautoscroll.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		: DROPDOWN_SetAutoScroll.c
Purpose 	: Implementation of dropdown widget
---------------------------END-OF-HEADER------------------------------
*/

#include "DROPDOWN_Private.h"
#include "LISTBOX.h"

#if GUI_WINSUPPORT

/*********************************************************************
*
*   	Public routines
*
**********************************************************************
*/

/*********************************************************************
*
*   	DROPDOWN_SetAutoScroll
*/
void DROPDOWN_SetAutoScroll(DROPDOWN_Handle hObj, int OnOff)
{
	if (hObj)
	{
		DROPDOWN_Obj* pObj;
		char Flags;
		WM_LOCK();
		pObj = DROPDOWN_H2P(hObj);
		Flags = pObj->Flags & (~DROPDOWN_SF_AUTOSCROLLBAR);
		if (OnOff)
		{
			Flags |= DROPDOWN_SF_AUTOSCROLLBAR;
		}
		if (pObj->Flags != Flags)
		{
			pObj->Flags = Flags;
			if (pObj->hListWin)
			{
				LISTBOX_SetAutoScrollV(pObj->hListWin, (Flags & DROPDOWN_SF_AUTOSCROLLBAR) ? 1 : 0);
			}
		}
		WM_UNLOCK();
	}
}

#else   						 /* Avoid problems with empty object modules */
void DROPDOWN_SetAutoScroll_C(void);
void DROPDOWN_SetAutoScroll_C(void)
{
}
#endif