Performs black & white effect on a GdPicture image or on an area of a GdPicture image defined by SetROI() method using a specific threshold value. Values above or equal to the threshold value will be set white, and values lower than the threshold value will be set as black.

'Declaration
 
Public Function FxBlackNWhiteT( _
   ByVal ImageID As Integer, _
   ByVal Threshold As Byte _
) As GdPictureStatus

public GdPictureStatus FxBlackNWhiteT( 
   int ImageID,
   byte Threshold
)

public function FxBlackNWhiteT( 
    ImageID: Integer;
    Threshold: Byte
): GdPictureStatus; 

public function FxBlackNWhiteT( 
   ImageID : int,
   Threshold : byte
) : GdPictureStatus;

public: GdPictureStatus FxBlackNWhiteT( 
   int ImageID,
   byte Threshold
) 

public:
GdPictureStatus FxBlackNWhiteT( 
   int ImageID,
   byte Threshold
)