Unitech PA500 Instrukcja Użytkownika Pobierz pdf (Strona 24)

6. SysIOAPI.DLL

This DLL provide hardware relative API for user to control scanner, LED, back-light and PC

card slot. API functions are provided through DLL to assist programmer to write application

for PA500.

Note : For PA500 programming, it need to dynamically load DLL for using Unitech built-in DLL (Unitech

will not provide *.H and *.LIB for compiler), please refer to Chapter 7 for programming guide.

6.1. Keypad Related Functions

6.1.1. Disable/enable power button

Function Description:

To enable / disable power button

Function call:

VOID DisablePowerButton (BOOL)

Parameter (Input)

TRUE = Disable power button.

FALSE = Enable power button.

Return code:

None

6.1.2. Get CAPS lock status

Function Description:

To check if CAPS is lock or unlock

Function call:

BOOL GetCapsLock (void)

Return code:

BOOL: TRUE : CAPS lock

FALSE : CAPS unlock

6.1.3. Get SHIFT status

Function Description:

To check if SHIFT key is lock or not

Function call:

BOOL GetShift (void)

Return code:

TRUE : Shift lock

FALSE : Shift unlock

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Unitech PA500 Instrukcja Użytkownika Strona 24