typedef void GUI_TIMER_CALLBACK(/*const*/ GUI_TIMER_MESSAGE* pTM);

GUI_TIMER_Handle GUI_TIMER_Create      (    GUI_TIMER_CALLBACK* cb, int Time,  U32 Context, int Flags);
void         GUI_TIMER_Delete      (GUI_TIMER_Handle pObj);

/* Methods changing properties */
void GUI_TIMER_SetPeriod (GUI_TIMER_Handle hObj, GUI_TIMER_TIME Period);
void GUI_TIMER_SetTime   (GUI_TIMER_Handle hObj, GUI_TIMER_TIME Period);
void GUI_TIMER_SetDelay  (GUI_TIMER_Handle hObj, GUI_TIMER_TIME Delay);
void GUI_TIMER_Restart   (GUI_TIMER_Handle hObj);
int  GUI_TIMER_Exec(void);


/******************************************************************
*
*                 Anti Aliasing
*
*******************************************************************
*/

void GUI_AA_DisableHiRes   (void);
void GUI_AA_EnableHiRes    (void);
int  GUI_AA_GetFactor      (void);
void GUI_AA_SetFactor      (int Factor);
void GUI_AA_DrawArc        (int x0, int y0, int rx, int ry, int a0, int a1);
void GUI_AA_DrawLine       (int x0, int y0, int x1, int y1);
void GUI_AA_DrawPolyOutline(const GUI_POINT* pSrc, int NumPoints, int Thickness, int x, int y);
void GUI_AA_FillCircle     (int x0, int y0, int r);
void GUI_AA_FillPolygon    (GUI_POINT* pPoints, int NumPoints, int x0, int y0);

/* Defines for compatibility with older versins*/
#if GUI_COMPATIBLE_MODE
  #define GUI_DrawArcAA             GUI_AA_DrawArc
  #define GUI_DrawPolyOutlineAA     GUI_AA_DrawPolyOutline
  #define GUI_FillCircleAA          GUI_AA_FillCircle
  #define GUI_FillPolygonAA         GUI_AA_FillPolygon
  #define GUI_MEMDEV_Load()
#endif

/******************************************************************
*
*                 Keyboard
*
*******************************************************************
*/

/* Message layer */
void GUI_StoreKeyMsg(int Key, int Pressed);
void GUI_SendKeyMsg (int Key, int Pressed);
int  GUI_PollKeyMsg(void);

/* Message hook */
typedef int GUI_KEY_MSG_HOOK(int Key, int Pressed);
extern  GUI_KEY_MSG_HOOK* GUI_pfKeyMsgHook;
GUI_KEY_MSG_HOOK* GUI_SetKeyMsgHook(GUI_KEY_MSG_HOOK* pHook);

/* Application layer */
int  GUI_GetKey(void);
int  GUI_WaitKey(void);
void GUI_StoreKey(int c);
void GUI_ClearKeyBuffer(void);


/*********************************************************************
*
*          PID  (Pointer input device ... mouse/touch) 
*
**********************************************************************
*/
typedef struct {
  int x,y;
  unsigned char Pressed;
} GUI_PID_STATE;

void GUI_PID_StoreState(const GUI_PID_STATE *pState);
int  GUI_PID_GetState  (      GUI_PID_STATE *pState);

/*********************************************************************
*
*        Mouse, generic
*/
int  GUI_MOUSE_GetState  (      GUI_PID_STATE *pState);
void GUI_MOUSE_StoreState(const GUI_PID_STATE *pState);

/*********************************************************************
*
*          TOUCH screen, generic
*/

int  GUI_TOUCH_GetState    (      GUI_PID_STATE *pState);
void GUI_TOUCH_StoreStateEx(const GUI_PID_STATE *pState);
void GUI_TOUCH_StoreState  (int x, int y);
void GUI_TOUCH_StoreUnstable(int x, int y);
void GUI_TOUCH_GetUnstable(int* px, int* py);  /* for diagnostics only */


/*********************************************************************
*
*        Mouse, PS2 driver
*/
void GUI_MOUSE_DRIVER_PS2_Init(void);               /* optional */
void GUI_MOUSE_DRIVER_PS2_OnRx(unsigned char Data);


/*********************************************************************
*
*          TOUCH screen, analog driver
*/
void GUI_TOUCH_Exec(void);
int  GUI_TOUCH_Calibrate(int Coord, int Log0, int Log1, int Phys0, int Phys1);
void GUI_TOUCH_SetDefaultCalibration(void);
int  GUI_TOUCH_GetxPhys(void);    /* for diagnostics only */
int  GUI_TOUCH_GetyPhys(void);    /* for diagnostics only */
void GUI_TOUCH_GetCalData(int Coord, int* pMin,int* pMax);


/*********************************************************************
*
*          TOUCH
*
*          imports
*
**********************************************************************

Please note: The following functions are required by the module.
They need to be part of your application software (or rather, part
of the hardware-layer of your software). If you do not like the names
of these routines, you may rename them easily by defining them in
the Configuration file GUITouch.conf.h
Example:
#define TOUCH_X_MeasureY HARDWARE_ReadY

This will rename the routine TOUCH_X_MeasureY into HARDWARE_ReadY.
*/

void TOUCH_X_ActivateX(void);
void TOUCH_X_ActivateY(void);
void TOUCH_X_Disable(void);
int  TOUCH_X_MeasureX(void);
int  TOUCH_X_MeasureY(void);


/**************************************************************
*
*   Constants for fonts and bitmaps
*
***************************************************************
*/

#define GUI_COMPRESS_RLE4 0
#define GUI_COMPRESS_RLE8 0
#define GUI_DRAW_RLE4 LCD_DrawBitmap_RLE4  /* Function pointer ! */
#define GUI_DRAW_RLE8 LCD_DrawBitmap_RLE8  /* Function pointer ! */

/**************************************************************
*
*   Heap public
*
***************************************************************
  The main reason why the heap is declared public here is that
  an application can perform additional error checking on
  pointers. The variable itself is defined in the allocation
  module and will only be linke if required.
*/

typedef union {
  int aintHeap[GUI_ALLOC_SIZE/4];     /* required for proper alignement */
  U8  abHeap[GUI_ALLOC_SIZE];
} GUI_HEAP;

extern GUI_HEAP GUI_Heap;     /* Public for debugging only */


/**************************************************************
*
*      Defines for constants
*
***************************************************************
*/

#define	________	0x0
#define	_______X	0x1
#define	______X_	0x2
#define	______XX	0x3
#define	_____X__	0x4
#define	_____X_X	0x5
#define	_____XX_	0x6
#define	_____XXX	0x7
#define	____X___	0x8
#define	____X__X	0x9
#define	____X_X_	0xa
#define	____X_XX	0xb
#define	____XX__	0xc
#define	____XX_X	0xd
#define	____XXX_	0xe
#define	____XXXX	0xf
#define	___X____	0x10
#define	___X___X	0x11
#define	___X__X_	0x12
#define	___X__XX	0x13
#define	___X_X__	0x14
#define	___X_X_X	0x15
#define	___X_XX_	0x16
#define	___X_XXX	0x17
#define	___XX___	0x18
#define	___XX__X	0x19
#define	___XX_X_	0x1a
#define	___XX_XX	0x1b
#define	___XXX__	0x1c
#define	___XXX_X	0x1d
#define	___XXXX_	0x1e
#define	___XXXXX	0x1f
#define	__X_____	0x20
#define	__X____X	0x21
#define	__X___X_	0x22
#define	__X___XX	0x23
#define	__X__X__	0x24
#define	__X__X_X	0x25
#define	__X__XX_	0x26
#define	__X__XXX	0x27
#define	__X_X___	0x28
#define	__X_X__X	0x29
#define	__X_X_X_	0x2a
#define	__X_X_XX	0x2b
#define	__X_XX__	0x2c
#define	__X_XX_X	0x2d
#define	__X_XXX_	0x2e
#define	__X_XXXX	0x2f
#define	__XX____	0x30
#define	__XX___X	0x31
#define	__XX__X_	0x32
#define	__XX__XX	0x33
#define	__XX_X__	0x34
#define	__XX_X_X	0x35
#define	__XX_XX_	0x36
#define	__XX_XXX	0x37
#define	__XXX___	0x38
#define	__XXX__X	0x39
#define	__XXX_X_	0x3a
#define	__XXX_XX	0x3b
#define	__XXXX__	0x3c
#define	__XXXX_X	0x3d
#define	__XXXXX_	0x3e
#define	__XXXXXX	0x3f
#define	_X______	0x40
#define	_X_____X	0x41
#define	_X____X_	0x42
#define	_X____XX	0x43
#define	_X___X__	0x44
#define	_X___X_X	0x45
#define	_X___XX_	0x46
#define	_X___XXX	0x47
#define	_X__X___	0x48
#define	_X__X__X	0x49
#define	_X__X_X_	0x4a
#define	_X__X_XX	0x4b
#define	_X__XX__	0x4c
#define	_X__XX_X	0x4d
#define	_X__XXX_	0x4e
#define	_X__XXXX	0x4f
#define	_X_X____	0x50
#define	_X_X___X	0x51
#define	_X_X__X_	0x52
#define	_X_X__XX	0x53
#define	_X_X_X__	0x54
#define	_X_X_X_X	0x55
#define	_X_X_XX_	0x56
#define	_X_X_XXX	0x57
#define	_X_XX___	0x58
#define	_X_XX__X	0x59
#define	_X_XX_X_	0x5a
#define	_X_XX_XX	0x5b
#define	_X_XXX__	0x5c
#define	_X_XXX_X	0x5d
#define	_X_XXXX_	0x5e
#define	_X_XXXXX	0x5f
#define	_XX_____	0x60
#define	_XX____X	0x61
#define	_XX___X_	0x62
#define	_XX___XX	0x63
#define	_XX__X__	0x64
#define	_XX__X_X	0x65
#define	_XX__XX_	0x66
#define	_XX__XXX	0x67
#define	_XX_X___	0x68
#define	_XX_X__X	0x69
#define	_XX_X_X_	0x6a
#define	_XX_X_XX	0x6b
#define	_XX_XX__	0x6c
#define	_XX_XX_X	0x6d
#define	_XX_XXX_	0x6e
#define	_XX_XXXX	0x6f
#define	_XXX____	0x70
#define	_XXX___X	0x71
#define	_XXX__X_	0x72
#define	_XXX__XX	0x73
#define	_XXX_X__	0x74
#define	_XXX_X_X	0x75
#define	_XXX_XX_	0x76
#define	_XXX_XXX	0x77
#define	_XXXX___	0x78
#define	_XXXX__X	0x79
#define	_XXXX_X_	0x7a
#define	_XXXX_XX	0x7b
#define	_XXXXX__	0x7c
#define	_XXXXX_X	0x7d
#define	_XXXXXX_	0x7e
#define	_XXXXXXX	0x7f
#define	X_______	0x80
#define	X______X	0x81
#define	X_____X_	0x82
#define	X_____XX	0x83
#define	X____X__	0x84
#define	X____X_X	0x85
#define	X____XX_	0x86
#define	X____XXX	0x87
#define	X___X___	0x88
#define	X___X__X	0x89
#define	X___X_X_	0x8a
#define	X___X_XX	0x8b
#define	X___XX__	0x8c
#define	X___XX_X	0x8d
#define	X___XXX_	0x8e
#define	X___XXXX	0x8f
#define	X__X____	0x90
#define	X__X___X	0x91
#define	X__X__X_	0x92
#define	X__X__XX	0x93
#define	X__X_X__	0x94
#define	X__X_X_X	0x95
#define	X__X_XX_	0x96
#define	X__X_XXX	0x97
#define	X__XX___	0x98
#define	X__XX__X	0x99
#define	X__XX_X_	0x9a
#define X__XX_XX	0x9b
#define X__XXX__	0x9c
#define X__XXX_X	0x9d
#define	X__XXXX_	0x9e
#define	X__XXXXX	0x9f
#define	X_X_____	0xa0
#define	X_X____X	0xa1
#define	X_X___X_	0xa2
#define	X_X___XX	0xa3
#define	X_X__X__	0xa4
#define	X_X__X_X	0xa5
#define	X_X__XX_	0xa6
#define	X_X__XXX	0xa7
#define	X_X_X___	0xa8
#define	X_X_X__X	0xa9
#define	X_X_X_X_	0xaa
#define	X_X_X_XX	0xab
#define	X_X_XX__	0xac
#define	X_X_XX_X	0xad
#define	X_X_XXX_	0xae
#define	X_X_XXXX	0xaf
#define	X_XX____	0xb0
#define X_XX___X	0xb1
#define	X_XX__X_	0xb2
#define	X_XX__XX	0xb3
#define	X_XX_X__	0xb4
#define	X_XX_X_X	0xb5
#define	X_XX_XX_	0xb6
#define	X_XX_XXX	0xb7
#define	X_XXX___	0xb8
#define	X_XXX__X	0xb9
#define	X_XXX_X_	0xba
#define	X_XXX_XX	0xbb
#define	X_XXXX__	0xbc
#define	X_XXXX_X	0xbd
#define	X_XXXXX_	0xbe
#define	X_XXXXXX	0xbf
#define	XX______	0xc0
#define	XX_____X	0xc1
#define	XX____X_	0xc2
#define	XX____XX	0xc3
#define	XX___X__	0xc4
#define	XX___X_X	0xc5
#define	XX___XX_	0xc6
#define	XX___XXX	0xc7
#define	XX__X___	0xc8
#define	XX__X__X	0xc9
#define	XX__X_X_	0xca
#define	XX__X_XX	0xcb
#define	XX__XX__	0xcc
#define	XX__XX_X	0xcd
#define	XX__XXX_	0xce
#define XX__XXXX	0xcf
#define	XX_X____	0xd0
#define	XX_X___X	0xd1
#define	XX_X__X_	0xd2
#define	XX_X__XX	0xd3
#define	XX_X_X__	0xd4
#define	XX_X_X_X	0xd5
#define	XX_X_XX_	0xd6
#define	XX_X_XXX	0xd7
#define	XX_XX___	0xd8
#define	XX_XX__X	0xd9
#define	XX_XX_X_	0xda
#define	XX_XX_XX	0xdb
#define	XX_XXX__	0xdc
#define	XX_XXX_X	0xdd
#define	XX_XXXX_	0xde
#define	XX_XXXXX	0xdf
#define	XXX_____	0xe0
#define	XXX____X	0xe1
#define	XXX___X_	0xe2
#define	XXX___XX	0xe3
#define	XXX__X__	0xe4
#define	XXX__X_X	0xe5
#define	XXX__XX_	0xe6
#define	XXX__XXX	0xe7
#define	XXX_X___	0xe8
#define	XXX_X__X	0xe9
#define	XXX_X_X_	0xea
#define	XXX_X_XX	0xeb
#define	XXX_XX__	0xec
#define	XXX_XX_X	0xed
#define	XXX_XXX_	0xee
#define	XXX_XXXX	0xef
#define	XXXX____	0xf0
#define	XXXX___X	0xf1
#define	XXXX__X_	0xf2
#define	XXXX__XX	0xf3
#define	XXXX_X__	0xf4
#define	XXXX_X_X	0xf5
#define	XXXX_XX_	0xf6
#define	XXXX_XXX	0xf7
#define	XXXXX___	0xf8
#define	XXXXX__X	0xf9
#define	XXXXX_X_	0xfa
#define	XXXXX_XX	0xfb
#define	XXXXXX__	0xfc
#define	XXXXXX_X	0xfd
#define	XXXXXXX_	0xfe
#define	XXXXXXXX	0xff

/**************************************************************
*
*      Compatibility with older version
*
***************************************************************
*/

#define GUI_DrawBitMap(x,y,pBM)   GUI_DrawBitmap(pBM,x,y)
#define GUI_TOUCH_tState          GUI_PID_STATE
#define GUI_HID_STATE             GUI_PID_STATE


#define GUI_ID_BACKSPACE         GUI_KEY_BACKSPACE
#define GUI_ID_TAB               GUI_KEY_TAB
#define GUI_ID_ENTER             GUI_KEY_ENTER
#define GUI_ID_LEFT              GUI_KEY_LEFT
#define GUI_ID_UP                GUI_KEY_UP
#define GUI_ID_RIGHT             GUI_KEY_RIGHT
#define GUI_ID_DOWN              GUI_KEY_DOWN
#define GUI_ID_HOME              GUI_KEY_HOME
#define GUI_ID_END               GUI_KEY_END
#define GUI_ID_SHIFT             GUI_KEY_SHIFT
#define GUI_ID_CONTROL           GUI_KEY_CONTROL
#define GUI_ID_ESCAPE            GUI_KEY_ESCAPE
#define GUI_ID_INSERT            GUI_KEY_INSERT
#define GUI_ID_DELETE            GUI_KEY_DELETE


#if defined(__cplusplus)
}
#endif 

#endif   /* ifdef GUI_H */