/******************************************************************************
 *
 * Copyright (c) 1995-2002 PalmSource, Inc. All rights reserved.
 *
 * File: GraffitiShift.h
 *
 * Release: Palm OS 5 SDK (68K) R2.
 *
 * Description:
 *        This file defines Griffiti shift state indicator routines.
 *
 *****************************************************************************/

#ifndef __GRAFFITISHIFT_H__
#define __GRAFFITISHIFT_H__

#include <PalmTypes.h>
#include <CoreTraps.h>

// Limits to size of Graffiti shift indicator.
#define	kMaxGsiWidth	9
#define kMaxGsiHeight	10

// Graffiti lock flags
#define glfCapsLock		0x01
#define glfNumLock		0x02


typedef enum
{
	gsiShiftNone,				// no indicator
	gsiNumLock,					// numeric lock
	gsiCapsLock,				// capital lock
	gsiShiftPunctuation,		// punctuation shift
	gsiShiftExtended,			// extented punctuation shift
	gsiShiftUpper,				// alpha upper case shift
	gsiShiftLower	 			// alpha lower case
} GsiShiftState;


#ifdef __cplusplus
extern "C" {
#endif

extern void GsiInitialize (void)
							SYS_TRAP(sysTrapGsiInitialize);

extern void GsiSetLocation (const Int16 x, const Int16 y)
							SYS_TRAP(sysTrapGsiSetLocation);

extern void GsiEnable (const Boolean enableIt)
							SYS_TRAP(sysTrapGsiEnable);

extern Boolean GsiEnabled (void)
							SYS_TRAP(sysTrapGsiEnabled);

extern void GsiSetShiftState (const UInt16 lockFlags, const UInt16 tempShift)
							SYS_TRAP(sysTrapGsiSetShiftState);

#ifdef __cplusplus 
}
#endif

#endif //__GRAFFITISHIFT_H__
