Ibarcodereadercontrol::queryattribute - Intermec 700 Series User Manual

SECTION 6

IBarCodeReaderControl::QueryAttribute

This function retrieves the device-specific grid, the scanner enable status, and
the LED control status for the current bar code reader engine.
Syntax:
Parameters:
Remarks:
Return Values:
See Also:
HRESULT IBarCodeReaderControl::QueryAttribute (
ITC_BARCODEREADER_ATTRIBUTE_ID eAttr, BYTE rgbAttrBuffer[],
DWORD dwAttrBufferSize );
eAttr [in]
rgbAttrBuffer [out]
dwAttrBufferSize [in]
The following attributes are not supported on the imager:
ITC_RDRATTR_TONE_ENABLE
ITC_RDRATTR_VOLUME_LEVEL
ITC_RDRATTR_TONE_FREQUENCY
ITC_RDRATTR_GOOD_READ_BEEPS_NUMBER
ITC_RDRATTR_GOOD_READ_BEEP_DURATION
A standard status code that indicates success or failure.
IBarCodeReaderControl::CancelReadRequest
IBarCodeReaderControl::ControlLED
IBarCodeReaderControl::Initialize
IBarCodeReaderControl::IssueBeep
IBarCodeReaderControl::Read
IBarCodeReaderControl::SetAttribute
IBarCodeReaderControl::TriggerScanner
Specifies the attribute. See
IBarCodeReaderControl::SetAttribute on page
6-24 for the attributes.
Contains buffer for the attribute to be queried.
The structure of rgbAttrBuffer depends on the
attribute being queried. See
IBarCodeReaderControl::SetAttritbute for a
description of these structures.
The maximum number of bytes that
rgbAttrBuffer can store.
700 Series Color Mobile Computer User's Manual
Scanner Support
6-21