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controller-hd/User/lib/lcd/gui/MemDev/GUIDEV_ReduceYSize.c

65 lines
2.3 KiB
C

/*********************************************************************
* SEGGER MICROCONTROLLER SYSTEME GmbH *
* Solutions for real time microcontroller applications *
**********************************************************************
* *
* (c) 1996 - 2004 SEGGER Microcontroller Systeme GmbH *
* *
* Internet: www.segger.com Support: support@segger.com *
* *
**********************************************************************
***** emWin - Graphical user interface for embedded applications *****
emWin 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 re-
distributed in any way. We appreciate your understanding and fairness.
----------------------------------------------------------------------
File : GUIDEV_ReduceYSize.c
Purpose : Implementation of memory devices, add. module
---------------------------END-OF-HEADER------------------------------
*/
#include "GUI_Protected.h"
#include "GUIDebug.h"
#include <string.h>
/* Memory device capabilities are compiled only if support for them is enabled. */
#if GUI_SUPPORT_MEMDEV
/*********************************************************************
*
* public code
*
**********************************************************************
*/
/*********************************************************************
*
* GUI_MEMDEV_ReduceYSize
*/
void GUI_MEMDEV_ReduceYSize(GUI_MEMDEV_Handle hMem, int YSize) {
/* Make sure memory handle is valid */
if (!hMem)
hMem = GUI_Context.hDevData;
if (!hMem)
return;
{
GUI_MEMDEV * pDevData;
GUI_LOCK();
pDevData = (GUI_MEMDEV*) GUI_ALLOC_h2p(hMem); /* Convert to pointer */
if (YSize < pDevData->YSize) {
pDevData->YSize = YSize;
}
GUI_UNLOCK();
}
}
#else
void GUIDEV_ReduceYSize(void) {} /* avoid empty object files */
#endif /* GUI_MEMDEV_SUPPORT */
/*************************** end of file ****************************/