Unitech PA982 User Manual download pdf (Page 18)

2.10 Clear scan data system buffer

Function Description:

Reset the data buffer so that next new scan data can come in.

Function call:

void USI_ResetData();

2.11 Good read indicator

Function Description:

Inform a good receiving of scan data, this will play a sound (wave file scanok.wav) and light the

LED lasting for 1 second.

Function call:

void USI_ReadOK();

Note:

USI will call the function GoodReadLEDOn function exported by the DLL defined in the registry

described below (UPI300.DLL is an example) to turn on and off the LED. If the DLL is not defined or

the function is not found, USI will bypass the call of GoodReadLEDOn.

[HKEY_LOCAL_MACHINE\SOFTWARE\Unitech America Inc.\Scanner\Settings]

"DLLLEDCONTROL"="UPI300.DLL"

The function prototype of GoodReadLEDOn is:

VOID WINAPI GoodReadLEDOn(BOOL fon);

Turn on when fon is TRUE, and turn off when fon is FALSE.

2.12 Wait for acknowledgement of the last sent command

Function Description:

Wait for acknowledgement of the last sent command until timeout. It is useful when a serial of

commands needs to be sent at a time. Before call USI_SendCommand, call

USI_WaitForSendEchoTO to make sure that the previous command is done.

Function call:

BOOL USI_WaitForSendEchoTO(DWORD timeout);

Parameter: (input)

timeout: DWORD : Specifies the timeout in millisecond.

Return:

Returns FALSE if timeout.

2.13 Save setting to profiles

Function Description:

Save current settings of scanner so that the settings will be persistent when the unit get power off

and on again.

Function call:

BOOL USI_SaveCurrentSettings();

Return :

TRUE: Success,

FALSE: Fail

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Unitech PA982 User Manual Page 18