Tries to set the current image compression to use by the selected twain source for file transfer mode. Since only certain file formats support compression, this capability must be negotiated after setting the desired file format with the TwainSetImageFileFormat() method.

public bool TwainSetCompression( 
   TwainCompression Compression
)

public function TwainSetCompression( 
    Compression: TwainCompression
): Boolean; 

public function TwainSetCompression( 
   Compression : TwainCompression
) : boolean;

public: bool TwainSetCompression( 
   TwainCompression Compression
) 

public:
bool TwainSetCompression( 
   TwainCompression Compression
) 

'Declaration
 
Public Function TwainSetCompression( _
   ByVal Compression As TwainCompression _
) As Boolean