OLE Error with tablet pc factoids and TInkPicture

[instinctfx]

Hi

Im writing an application that uses the Microsoft Tablet PC api's

When im trying to set the FACTOID for an ink recogniser, im getting an OLE Error that i cant seem to find a plausable explanation for

The code is this

vPicture := (Components[i] as TInkPicture);
        case vPicture.Tag of
        40,41,42,43:
        begin
          FRecogniser.Factoid := 'DIGIT';
        end;
        else
          FRecogniser.Factoid := 'DEFAULT';
        end;

The code part that is failing is FRecogniser.Factoid := 'DEFAULT'; and FRecogniser.Factoid := 'DIGIT';

This calls a COM library that ive imported calling this

property Factoid: WideString read Get_Factoid write Set_Factoid;

in the type library

The code in the type library is this

procedure TInkRecognizerContext.Set_Factoid(const Factoid: WideString);
var
  InterfaceVariant: OleVariant;
begin
  InterfaceVariant := DefaultInterface;
  InterfaceVariant.Factoid := Factoid;
end;

Which the error is on this line, InterfaceVariant.Factoid := Factoid;

The ole Error is 80040237

Ive not been able to find an explanation that could suit the error, the only one i seem to find is

H_ERR_NOT_OPENED
Or
Operation failed due to a SQL integrity

Now none of these make sense esp the SQL integrity as there
s no database operations going on for this.

Any clues??

Brendan
Developer
IFX Software