Insert structural weldments c#

Please someone help me

I make a API using the solidworks help about dotnetcontrolsdemo and it worked.

The taskpane in solidworks shows some buttons that do nothing.

Now I need to insert structural weldments. and one button to make this function

I´m using c# and I really need help for this...

I followed the help in solidworks "insert structural weldments c# example"

If someone can help I really thank.

please if anyone knows send me an e-mail : paula.mecatronica@gmail.com

thanks a Lot.

SolidworksWeldments