I think you should be able to just pass a function object to PythonRegister and
it should be converted into a delegate. For example:
import clr
clr.AddReference('PyAcadDotNet')
from PyAcadDotNet import PyAcadCmd
def foo():
print 'hello world'
PyAcadCmd.PythonRegister('some command', foo, CommandFlags.Whatever)
Does that not work?
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tim Riley
Sent: Wednesday, August 29, 2007 7:10 PM
To: Discussion of IronPython
Subject: [IronPython] Hosting: Delegates from Ironpython to C#
I'm embedding IronPython in a C# dll that is hosted inside a program
called AutoCAD. In order to register commands in AutoCAD from .NET I
need to P/Invoke a C function inside a .dll. I can do this fairly easy
from C# but I can't figure out the right way to call my C# wrapper
from IronPython to have it register the command. I have perused the
hosting docs for 1.1 and haven't been able to come up with a solution
that works. Here is my C# code. I either want to call the PyRegCmds
void or the PythonRegister void. Both of which expect a delegate.for
example if I had a python function like:
def test1:
print "This is a test".
I can't figure out how to map test to the delegate required in the code below.
Note: I can call this from C# fine. See :static public void test().
Can anyone give me any pointers? It would be greatly appreciated.
code:
using System ;
using System.Runtime.InteropServices;
using Autodesk.AutoCAD.Runtime ;
using Autodesk.AutoCAD.EditorInput;
namespace PyAcadDotNet
{
/// <summary>
/// PyAcadCmd Class:
/// Used to register commands on the AutoCAD command stack.
/// </summary>
public class PyAcadCmd
{
public PyAcadCmd()
{
}
public delegate void CmdDelegate();
/// <summary>
/// RegPyAcadCmd:
/// Registers a delegate (callback) with the AutoCAD command
string
/// on the command stack.
/// </summary>
[DllImport("PyRegCmd.dll",
CallingConvention=CallingConvention.Cdecl,CharSet =
CharSet.Unicode,
EntryPoint = "?RegPyCmd@@[EMAIL PROTECTED]")]
public static extern void RegPyCmd(
string cmd_group,
string cmd_name,
Autodesk.AutoCAD.Runtime.CommandFlags cmd_flags,
[MarshalAs(UnmanagedType.FunctionPtr)]
PyAcadCmd.CmdDelegate cmd_delegate);
public static void PythonRegister(string CommandName,
CmdDelegate FuncPointer, CommandFlags flags)
{
RegPyCmd("_pycmds", CommandName, flags, FuncPointer);
}
//testing stuff
public static void testcommand()
{
Editor ed =
Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
ed.WriteMessage("\ncb1 delegate seems to work!\n");
}
[CommandMethod("regcmds")]
static public void test() // This method can have any name
{
CmdDelegate cb1 = new CmdDelegate(PyAcadCmd.testcommand);
PythonRegister("testcommand", cb1, CommandFlags.Session);
}
}
}
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