62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/*
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*********************************************************************************************************
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* uC/GUI
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* Universal graphic software for embedded applications
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*
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* (c) Copyright 2002, Micrium Inc., Weston, FL
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* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
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*
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* µC/GUI is protected by international copyright laws. Knowledge of the
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* source code may not be used to write a similar product. This file may
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* only be used in accordance with a license and should not be redistributed
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* in any way. We appreciate your understanding and fairness.
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*
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----------------------------------------------------------------------
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File : LCD_SetAPI.C
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Purpose : Implementation of said function
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---------------------------END-OF-HEADER------------------------------
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*/
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#include <stddef.h> /* needed for definition of NULL */
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#include "GUI_Private.h"
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#include "GUIDebug.h"
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#include "LCD_Private.h" /* Required for configuration, APIList */
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#if GUI_SUPPORT_DEVICES
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/*********************************************************************
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*
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* Public code
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* LCD_SetAPI
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*
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* Purpose:
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* Sets the API table for a layer.
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* Some high level software (such as the VNC server, but maybe also the mouse "Cursor" module)
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* may need to override these pointers in order to link itself into the chain
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* of drawing routines.
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*/
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const tLCDDEV_APIList* LCD_SetAPI(const tLCDDEV_APIList* pAPI, int Index) {
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const tLCDDEV_APIList* pOldAPI;
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pOldAPI = LCD_aAPI[Index];
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/* Also aplly changes to current context if LCD of this layer is selected */
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if ((GUI_Context.SelLayer == Index) && (GUI_Context.hDevData == 0)) {
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GUI_Context.pDeviceAPI = pAPI;
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}
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LCD_aAPI[Index] = pAPI;
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return pOldAPI;
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}
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#else
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void LCD_SetAPI_C(void);
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void LCD_SetAPI_C(void) {}
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#endif
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/*************************** End of file ****************************/
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