Adjust in one shot, the brightness, contrast, saturation & gamma on a GdPicture image or into an area of a GdPicture image defined by SetROI() function. 

This function is faster than successive calls to any of SetBrightness, SetContrast, SetSaturation & SetGammaCorrection functions.

public GdPictureStatus SetBCSG(
    int ImageID, 
    int Brightness, 
    int Contrast, 
    int Saturation, 
    int Gamma
);

Public Function SetBCSG(
    ByVal ImageID As Integer, 
    ByVal Brightness As Integer, 
    ByVal Contrast As Integer, 
    ByVal Saturation As Integer, 
    ByVal Gamma As Integer
) As GdPictureStatus

A member of the GdPictureStatus enumeration.