Unitech PA600 Programming Manual

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2.2. Unregister the application from the USI.DLL
Function Description:
Unregister the application from the DLL. It will close the scanner port, and by default it will disable
the scanner.
Function call:
void USI_Unregister();
2.3. Enable / Disable Scanner
Function Description:
To start or stop USI function. This function is useful for application to temporarily stop scanner
function if it is only need keypad input or keep clear input buffer.
Function call:
BOOL USI_EnableScan(BOOL bStatus);
Parameter: (input)
bStatus: TRUE : Enable Scanner
FALSE : Disable Scanner
Return:
BOOL : TRUE : OK
FALSE : Failure
2.4. Reset Scanner
Function Description:
Set the scanner to the working mode, and reset the communication control.
Function call:
BOOL USI_Reset();
Return:
Always TRUE
2.5. Get error code
Function Description:
Returns the error code (SERR_***).
Function call:
DWORD USI_GetError();
Return:
Returns the error code (SERR_***), which has been described in USI_Register function.
2.6. Returns the system error code
Function Description:
Returns the system error code, which is returned by GetLastError. It will also return the description
of the error in buffer if it is not NULL.
Function call:
DWORD USI_GetLastSysError(LPTSTR buffer, int len);
Return:
Returns the system error code, which is returned by system function GetLastError. It will also return
the description of the error in buffer retrieved by system function FormatMessage if it is not NULL.
For a complete list of error codes, refer to the SDK header file WINERROR.H.

Unitech PA600 Specifications

System Memory

SDRAM memory	64 MB
Flash ROM	128 MB
Flash ROM with WWAN	320 MB

Display

display resolution	240x320 QVGA
display type	Color Transflective TFT
touch screen	Yes

Power

main battery	3.7V 1950mAh Li-Ion Battery Pack
backup battery	One Rechargeable Ni-MH Backup Battery
power source	Main Battery

Operating Environment

operating temperature	32ºF to 122ºF (0ºC to 50ºC)
storage temperature	-4ºF to 140ºF (-20ºC to 60ºC)
relative humidity	5% ~ 95% (non-condensing)

Weight and Dimensions

weight	290g with Battery & Scan Engine
length	149.5 mm
height	26.6 mm