Converts a GdPicture image to a 16-bits RGB565 color image. 

5 bits are used for the red component, 6 bits are used for the green component, and 5 bits are used for the blue component.

public GdPictureStatus ConvertTo16BppRGB565(
    int ImageID
);

Public Function ConvertTo16BppRGB565(
    ByVal ImageID As Integer
) As GdPictureStatus

A member of the GdPictureStatus enumeration.