wm_setcapture.c

来自「LPC2368驱动淘宝上27元钱的TFT的代码」· C语言 代码 · 共 93 行

/*
*********************************************************************************************************
*   											 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_SetCapture.c
Purpose 	: Implementation of WM_SetCapture
----------------------------------------------------------------------
*/

#include "WM_Intern.h"

#if GUI_WINSUPPORT

/*********************************************************************
*
*   	 Public data
*
**********************************************************************
*/


/*********************************************************************
*
*   	 Static code
*
**********************************************************************
*/
/*********************************************************************
*
*   	WM__ReleaseCapture
*/
static void WM__ReleaseCapture(void)
{
	if (WM__hCapture)
	{
		WM_MESSAGE Msg;
		Msg.MsgId = WM_CAPTURE_RELEASED;
		WM_SendMessage(WM__hCapture, &Msg);
		WM__hCapture = 0;
	}
}

/*********************************************************************
*
*   	 Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	WM_SetCapture
*/
void WM_SetCapture(WM_HWIN hObj, int AutoRelease)
{
	WM_LOCK();
	if (WM__hCapture != hObj)
	{
		WM__ReleaseCapture();
	}
	WM__hCapture = hObj;
	WM__CaptureReleaseAuto = AutoRelease;
	WM_UNLOCK();
}

/*********************************************************************
*
*   	WM_ReleaseCapture
*/
void WM_ReleaseCapture(void)
{
	WM_LOCK();
	WM__ReleaseCapture();
	WM_UNLOCK();
}

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

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