TwainGetAvailableBarCodeTypeCount Method (GdPictureImaging)

In This Topic

If barcode detection is available, returns the number of bar code types that can be detected.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Function TwainGetAvailableBarCodeTypeCount() As Integer

public int TwainGetAvailableBarCodeTypeCount()

public function TwainGetAvailableBarCodeTypeCount(): Integer;

public function TwainGetAvailableBarCodeTypeCount() : int;

public: int TwainGetAvailableBarCodeTypeCount();

public:
int TwainGetAvailableBarCodeTypeCount();

Return Value

If Success, non zero: the number of bar code types that can be detected. Else 0 if fail. Use TwainGetLastResultCode() and TwainGetLastConditionCode() methods for diagnosing the error.

Remarks

Before using this method check that the TWAIN state is >= 4 (TWAIN_SOURCE_OPEN) To get the TWAIN state, use the TwainGetState() method.

Reference

GdPictureImaging Class
GdPictureImaging Members
TwainGetState Method
TwainGetAvailableBarCodeTypeNo Method