Reference Guide
GdPicture14 Namespace / GdPictureImaging Class / TwainCloseSource Method

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    TwainCloseSource Method (GdPictureImaging)
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    Closes the open Data Source, if any. If the source is enabled, disables it first.
    Public Function TwainCloseSource() As Boolean
    public bool TwainCloseSource()
    public function TwainCloseSource(): Boolean; 
    public function TwainCloseSource() : boolean;
    public: bool TwainCloseSource(); 
    bool TwainCloseSource(); 

    Return Value

    True if success, else False. If there is not an open source, does nothing and returns TRUE.
    This method should be called only if the TWAIN state is 4 (TWAIN_SOURCE_OPEN) or 5 (TWAIN_SOURCE_ENABLED). If success, the TWAIN state must be <= 3 (TWAIN_SM_OPEN). To get the TWAIN state, use the TwainGetState() method.
    See Also