Argox PT-9130 - Manual (Page 34)

PT-90 Mobile Computer SDK Programming Manual 27
KeypadLEDOn
To always turn ON or OFF the keypad LED.
DWORD KeypadLEDOn
{
BOOL bOn
}
Parameters
bOn
[in] Flag that indicates whether to turn ON (TRUE) or OFF(FALSE) the keypad LED.
Returned Values
If this action succeeds, the returned value is E_FUNC_SUCCEED . If this action fails, possible returned values are
E_FUNC_ERROR , E_FUNC_PAR_ERROR .
Remarks
The KeyPad LED Setting in Control Panel is used to set the Keypad LED operation to meet actual application
requirements. Calling this function will set the KeyPad LED to always ON or OFF. Programmer can use this
function or KeyPad LED Setting in the Control Panel to always turn ON or OFF the keypad LED.
Example
DWORD dwResult;
dwResult = KeypadLEDOn(TRUE);
if(dwResult != E_FUNC_SUCCEED)
AfxMessageBox(_T("KeypadLEDOn fail"));
Requirements
OS Versions: Windows CE 6.0 or beyond.
Header: sysapiax.h
Link Library: sysapiax.lib
Link DLL: sysapiax.dll
Device: PT90