/// <summary>Returns the names of all refered procedures</summary>
public HTuple GetUsedProcedureNames()
{
IntPtr tuple;
HDevProcedure.HCkE(HalconAPI.CreateTuple(out tuple));
HDevProcedure.HCkE(EngineAPI.GetUsedProcedureNamesForProcedure(this.procedure, tuple));
GC.KeepAlive((object)this);
HTuple htuple = HalconAPI.LoadTuple(tuple);
HDevProcedure.HCkE(HalconAPI.DestroyTuple(tuple));
return(htuple);
}