Applies transformation to a JPEG image without loss of information. 

When a JPEG image is compressed, some of the information in the image is lost. 

If you open a JPEG file, modify the image, and save it to another JPEG file, the quality will decrease. 

This function allows to opening / modifying / saving JPEG images, without loss of information.

public GdPictureStatus TransformJPEG(
    String InputFile, 
    String OutputFile, 
    JPEGTransformation Transformation
);

Public Function TransformJPEG(
    ByVal InputFile As String, 
    ByVal OutputFile As String, 
    ByVal Transformation As JPEGTransformation
) As GdPictureStatus

A member of the GdPictureStatus enumeration.