c#直接调用DLL里面的函数，以UF_MODL_ask_face_parm为例

using System;
using NXOpen;
using NXOpen.UF;
using System.Runtime.InteropServices;

public class Program
{
    // class members
    [DllImport("libufun.dll", EntryPoint = "UF_MODL_ask_face_parm")]
    public static extern int UF_MODL_ask_face_parm(Tag face_id, double[] ref_pnt, double[] parm, double[] face_pnt);
    private static Session theSession;
    private static Part workpart;
    private static UI theUI;
    private static UFSession theUfSession;
    public static Program theProgram;
    public static ListingWindow lw;
    public static bool isDisposeCalled;

    //------------------------------------------------------------------------------
    // Constructor
    //------------------------------------------------------------------------------
    public Program()
    {
        try
        {
            theSession = Session.GetSession();
            workpart = theSession.Parts.Work;
            theUI = UI.GetUI();
            theUfSession = UFSession.GetUFSession();
            lw = theSession.ListingWindow;
            lw.Open();
            isDisposeCalled = false;
        }
        catch (NXOpen.NXException ex)
        {
            // ---- Enter your exception handling code here -----
            // UI.GetUI().NXMessageBox.Show("Message", NXMessageBox.DialogType.Error, ex.Message);
        }
    }

    //------------------------------------------------------------------------------
    //  Explicit Activation
    //      This entry point is used to activate the application explicitly
    //------------------------------------------------------------------------------
    public static int Main(string[] args)
    {
        int retValue = 0;
        try
        {
            theProgram = new Program();
            double[] parm = new double[2];
            double[] face_pnt = new double[3];
            double[] ref_pnt = new double[] { -18.75412126318, 3.13573138078, 18.82464836060 };
            NXOpen.Utilities.JAM.StartUFCall();
            UF_MODL_ask_face_parm((Tag)29684, ref_pnt, parm, face_pnt);
            NXOpen.Utilities.JAM.EndUFCall();
            lw.WriteLine(parm[0].ToString() + "," + parm[1].ToString());
            lw.WriteLine(face_pnt[0].ToString() + "," + face_pnt[1].ToString() + "," + face_pnt[2].ToString());
            theProgram.Dispose();
        }
        catch (NXOpen.NXException ex)
        {
            // ---- Enter your exception handling code here -----

        }
        return retValue;
    }

    //------------------------------------------------------------------------------
    // Following method disposes all the class members
    //------------------------------------------------------------------------------
    public void Dispose()
    {
        try
        {
            if (isDisposeCalled == false)
            {
                //TODO: Add your application code here 
            }
            isDisposeCalled = true;
        }
        catch (NXOpen.NXException ex)
        {
            // ---- Enter your exception handling code here -----

        }
    }

    public static int GetUnloadOption(string arg)
    {
        //Unloads the image explicitly, via an unload dialog
        //return System.Convert.ToInt32(Session.LibraryUnloadOption.Explicitly);

        //Unloads the image immediately after execution within NX
        return System.Convert.ToInt32(Session.LibraryUnloadOption.Immediately);

        //Unloads the image when the NX session terminates
        // return System.Convert.ToInt32(Session.LibraryUnloadOption.AtTermination);
    }

}

标签：c#,double,parm,pnt,face,static,UF,public
来源： https://blog.csdn.net/huang233229920/article/details/113784741