Unitech PA600, Руководство по программированию

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6.1.5. Check Function Key status
Function Description:
This function is used to check if function key is enabled or not.
Function call:
BOOL GetFnKeyStatus(void)
Return code:
TRUE = Function key is enabled.
FALSE = Function key is disabled.
6.1.6. Enable/Disable Function Key
Function Description:
This function is used to enable/disable function key.
Function call:
void SetFnKeyDisable(BOOL bOff)
Parameter (Input):
TRUE = Disable function key.
FALSE = Enable function key.
6.2. Scanner Related Functions
To save power, the decoder IC is disabled when scanner is not in use. It can be
enabled through USI functions. Following functions are meaningful only if decode IC is
enabled.
6.2.1. Enable/Disable Scanner trigger key
Function Description:
This function enables/disables trigger keys.
Function call:
void EnableScannerTrigger(BOOL fOn)
Parameter (Input)
fON: BOOL: TRUE = enable trigger keys.
FALSE = disable trigger keys.
Return code:
6.2.2. Turn on/off Scan Engine
Function Description:
This function emulates trigger keys to turn scan engine on or off. It
functions even if trigger keys are disabled.
Function call:
void SetScannerOn(BOOL fON)
Parameter(Input)
fON: BOOL: TRUE = turn scan engine on.
False= turn scan engine off.
Return code: none
6.2.3. Get Trigger keys Status
Function Description:
This function returns enable/disable status of trigger keys.
Function call:
BOOL GetScannerTrigger(void)
Return code:
TRUE = trigger keys are enabled.
FALSE = trigger keys are disabled.