Casio IT-2000D Manual de usuario descargar pdf (Pagina 160)

160

List of Input Functions

Page Function Description

160 KEY_CheckExist Checks if the keypad driver is installed

161 KEY_Read Acquires a key code or coordinates

162 KEY_Scan Checks if a key code or coordinates are in the buffer.

163 KEY_Clear Clears the key code and coordinate buffers.

163 KEY_DisplayPad Sets the specified pad to Display or Non-display.

164 KEY_GetPadState Returns whether a keypad is being displayed and

the pad number, if displayed.

164 KEY_SetInputMode Specifies the timing of input acceptance: at pen-up

or pen-down.

165 KEY_GetInputMode Sets whether to read confirmation mode.

165 KEY_SetCoordinateMode Sets whether to accept coordinate input.

166 KEY_GetCoordinateMode Acquires the current coordinates input mode.

166 KEY_SetExtKey Registers the expansion keys.

169 KEY_DelExtKey Deletes the specified expansion keys registered.

Checking Condition of Installed Keypad Driver

Checks if the keypad driver has been installed or not.

SYNTAX

int KEY_CheckExist(void);

INPUT

None

OUTPUT

= 1 Driver resides .

= 0 Driver has not been installed.

EXAMPLE

#include "padlib.h"

int retcd;

retcd = KEY_CheckExist();

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Casio IT-2000D Manual de usuario Pagina 160