Sets a color as transparent in a GdPicture image or in area of a GdPicture image defined by SetROI() method. This method takes a percentage threshold parameter regarding the color to set as transparent. Ie: A threshold value of 90 means that all the color value which are within 90% of the color value parameter will be considered.

'Declaration
 
Public Overloads Function SetTransparencyColor( _
   ByVal ImageID As Integer, _
   ByVal TransparentColor As GdPictureColor, _
   ByVal Threshold As Single _
) As GdPictureStatus

public GdPictureStatus SetTransparencyColor( 
   int ImageID,
   GdPictureColor TransparentColor,
   float Threshold
)

public function SetTransparencyColor( 
    ImageID: Integer;
    TransparentColor: GdPictureColor;
    Threshold: Single
): GdPictureStatus; 

public function SetTransparencyColor( 
   ImageID : int,
   TransparentColor : GdPictureColor,
   Threshold : float
) : GdPictureStatus;

public: GdPictureStatus SetTransparencyColor( 
   int ImageID,
   GdPictureColor TransparentColor,
   float Threshold
) 

public:
GdPictureStatus SetTransparencyColor( 
   int ImageID,
   GdPictureColor TransparentColor,
   float Threshold
)