Reference Guide
GdPicture14 Namespace / GdPictureImaging Class / TwainGetAvailableBarCodeTypeCount Method





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    TwainGetAvailableBarCodeTypeCount Method (GdPictureImaging)
    In This Topic
    If barcode detection is available, returns the number of bar code types that can be detected.
    Syntax
    '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.
    See Also