How can I call a COM-DLL from C# application?

Question

Hi I have a COM DLL implemented in ATL and now I want to develop a test exe in C# to test the features.

How can I call a COM-DLL from C# application ?

I have tested with LoadLibrary() but AFAIK this is for Win32 native DLL. Also I'm not sure that CoCreateInstance is called somewhere in LoadLibrary()?

[DllImport("kernel32.dll", CharSet = CharSet.Auto)]
  static extern IntPtr LoadLibrary(string lpFileName);

        private int LoadDLL()
        {
            dllPath = lblDllPath.Text;
            int i_hmod = 0;
            IntPtr hMod = LoadLibrary(dllPath);
            i_hmod = hMod.ToInt32();
            if (i_hmod > 0)
            {
                txtOutput.Text += "Dll successfully loaded\r\n";
            }
            else
            {
                txtOutput.Text += "LoadLibrary failed\r\n";
            }
            return i_hmod;
        }

Thnx

Oded · Accepted Answer · 2010-11-03 13:03:35Z

3

You should be able to simply add a reference to the DLL directly to the .NET project - a wrapper will be created and you can call the wrapper methods that will be delegated to the COM component.

answered Nov 3, 2010 at 13:03

Oded

501k102 gold badges900 silver badges1k bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How can I call a COM-DLL from C# application?

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related