Trace settings Macros?

How to set parameters of "Corner smoothness" for cdrTraceLineDrawind.

 Set Trace = bmp.Bitmap.Trace(cdrTraceTechnical, 60, 80, cdrColorBlackAndWhite, cdrUniform, , True, True, True)


There are given only Smoothing = 60, And DetailPercentage = 80
Where should I add "corner smoothness" parameters?

Please help me dear people...