Casio IT-2000D Uživatelský manuál stáhnout pdf (Strana 163)

163

Key Buffer Clear

Clears both the system buffer and key BIOS buffer. If coordinate input by pen touch is continued,

coordinate values selected until the pen is lifted will be ignored. Furthermore, any operation in

progress on the pad will be canceled at that point. While in the process of USER coordinates

acquisition, the coordinates will be cleared after they have been acquired. Also, the KEY_Scan and

KEY_Read function does not collect data until the keypad is touched again.

SYNTAX

void KEY_Clear(void);

INPUT

None

OUTPUT

None

EXAMPLE

#include "padlib.h"

KEY_Clear0;

Display / Non-display of Keypad

Sets the specified keypad to either Display or Non-display. If "Display" is specified while the

keypad is being displayed, nothing occurs.

SYNTAX

int KEY_DisplayPad (int padno);

INPUT

padno = Number of the displayed keypad

KDC_PADOFF(0) Non-display

KDC_PADENG(1) Display

OUTPUT

= 0 Normal termination

= -1 Invalid pad number

EXAMPLE

#include "padlib.h"

int retcode;

retcode = KEY_DisplayPad (PAD_xxx);

Note:

If "Non-display" mode is specified while the keypad is not being displayed, the operation will be

terminated normally.

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Casio IT-2000D Uživatelský manuál Strana 163