Hi,

I have a COM interface definition which has a property set like this:

[propget, helpstring("property Prop")] HRESULT Prop([out, retval]
GuidType *pVal);
[propput, helpstring("property Prop")] HRESULT Prop([in] GuidType
newVal);

Where 'GuidType' is a typedef of GUID.

I wish to implement this as a .NET class and have done so successfuly
with other properties of the interface that are not GUIDs. But the
above GUID property gives the following message:

error CS0536: 'YourLibrary.YourClass' does not implement interface
member 'COMLib.COMInterface.Prop'. 'YourLibrary.YourClass.Prop' is
either static, not public, or has the wrong return type.

Obviously it's the return type that the compiler is having difficulty
with.

In the .NET class definition I have this:

public Guid Prop
{
  get {return m_Prop;}
  set {m_Prop = value;}
}

also

public COMLib.GuidType Prop
{
  get {return m_Prop;}
  set {m_Prop = value;}
}

but both result in this error. What return type am I supposed to use
here?

Sorry for the long post, but i'm totally stuck here.
Thanks in advance,

Keith