How to empty sketch

Hi,

I want to create a macro that deletes everything in the sketch before placing anything in it. Can you help?

Below code did not do it

swModel.EditSketch();

swModel.Extension.RunCommand((int)swCommands_e.swCommands_Select_All, "ClearSketch");

swModel.EditDelete();

Thank you

SK

SolidworksApi/macros