Edit profile construction via API

Hi all,

i would appriciate any help for my problem!

I'm writing a vb macro that manage sheet metal docs ordered,

after input measurements trougth an excel linked file,

the first thing it has to do is to print the profile construction 

used to extrude the model.

does anyone know how to enter or visualize in a front view the sketches i used for construction?

im trying to use the togglecontruction method but it ask an object!?




then after printing the sketch it has to back out of edit mode..