The TWAIN specification defines advanced capabilities of the Data Source. The advanced capabilities are enumerated in TP_AdvancedCapability.
Prior to initiating a Scanning Session, the application may specify values for advanced capabilities. To set advanced capabilities, first set the Capability property to use advanced capabilities (TP_Capability_UseCapAdvanced), then specify the specific advanced capability by setting the CapAdvanced property.
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' This code demonstrates how to set an advanced capability TwainPRO1.Capability = TP_Capability_UseCapAdvanced TwainPRO1.CapAdvanced = ICAP_BARCODEDETECTIONENABLED If (TwainPRO1.CapSupported) Then TwainPRO1.CapTypeOut = TWON_ONEVALUE TwainPRO1.CapValueOut = 1 TwainPRO1.SetCapOut End If |
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