The previous anwer retrieved from google appears to be incorrect.
Sorry about that.
Fortunately i found two solutions for you:
1. the simple solution using Dynamics;
2. the invoke solution with some help from TonyT.
//Start with a modied version of youre code
Type acadType = Type.GetTypeFromProgID("AutoCAD.Application.19.1");
var acad = Activator.CreateInstance(acadType);
//this is what we want to get returned
string[] acadProfileNames = null;
//Using Dynamics
dynamic acadPreferences = ((dynamic)acad).Preferences;
dynamic acadProfiles = acadPreferences.Profiles;
acadProfiles.GetAllProfileNames(out acadProfileNames);
if (acadProfileNames == null)
throw new System.Exception("Error GetAllProfileNames: Failed to return List of AutoCAD Profile Names");
Console.WriteLine("AutoCAD Profile Names: {0}", (string.Join(": ", acadProfileNames)));
//using Invoke
//Slightly modified shortcuts from TonyT
public static class LateBinding
{
public static object Get(this object obj, string propName, params object[] parameter)
{
return obj.GetType().InvokeMember(propName, BindingFlags.GetProperty, null, obj, parameter);
}
public static void Set(this object obj, string propName, params object[] parameter)
{
obj.GetType().InvokeMember(propName, BindingFlags.SetProperty, null, obj, parameter);
}
public static object Invoke(this object obj, string methName, object[] args, ParameterModifier[] mods)
{
return obj.GetType().InvokeMember(methName, BindingFlags.InvokeMethod, null, obj, args, mods, null, null);
}
}
//Samples using TonyT latebindings
//acad.Get("Preferences").Get("Display").Set("CursorSize", 10);
//object acadProfPref = acad.Get("Preferences").Get("Profiles");
//Reserve space for the returning argument, placeholder==NULL
object[] getAllProfilesArgs = new Object[] { null };
//First argument as reference(out)
ParameterModifier paramMods = new ParameterModifier(1);
paramMods[0] = true;
ParameterModifier[] argModifiers = { paramMods };
// all modifiers as a single object
acad.Get("Preferences").Get("Profiles").Invoke("GetAllProfileNames", getAllProfilesArgs,argModifiers);
if (getAllProfilesArgs[0] == null)
throw new System.Exception("Error GetAllProfileNames: Failed to return List of AutoCAD Profile Names using Reflection");
acadProfileNames = (string[])getAllProfilesArgs[0];
Console.WriteLine("AutoCAD Profile Names: {0}", (string.Join(": ", acadProfileNames)));
