[platform-swt-dev] ActiveX pointers to interfaces

["Goldbaum, Stephen" <Stephen.Goldbaum@xxxxxxxxxx>]

I'm trying to use the Microsoft Office Chart 9.0 thru SWT's OLE interface.
Specifically, I'm trying to get/set the Border line style.  Chart 9.0 has
the following specs:

In the IDispatch interface there is a property:

	[id(0x0000138c), propget, helpcontext(0x0501a00e)]
	Border* Border();

Border is actually defined as an interface of Microsoft Office Pivot Table
9.0.  It looks like this:
	[
	  odl,
	  uuid(0FB45160-2DE7-11D1-B1CE-00A0C9056619),
	  helpcontext(0x06009000),
	  dual,
	  oleautomation
	]
	interface Border : IDispatch {
	    [id(0x60020000), propget, helpcontext(0x06009001)]
	    HRESULT Color([out, retval] VARIANT* Color);
	    [id(0x60020000), propput, helpcontext(0x06009001)]
	    HRESULT Color([in] VARIANT* Color);
	    [id(0x60020002), propget, helpcontext(0x06009003)]
	    HRESULT LineStyle([out, retval] VARIANT* LineStyle);
	    [id(0x60020002), propput, helpcontext(0x06009003)]
	    HRESULT LineStyle([in] LineStyleEnum LineStyle);
	    [id(0x60020004), propget, helpcontext(0x06009005)]
	    HRESULT Parent([out, retval] IDispatch** Parent);
	    [id(0x60020005), propget, helpcontext(0x06009006)]
	    HRESULT Weight([out, retval] VARIANT* LineWeight);
	    [id(0x60020005), propput, helpcontext(0x06009006)]
	    HRESULT Weight([in] LineWeightEnum LineWeight);
	};

As far as I can tell from the WordBase example, I should be able to do the
following to get/set the line style.

	OleClientSite clientSite = new OleClientSite(frame, SWT.NONE,
"OWC.Char");
	OleAutomation automation = new OleAutomation(clientSite);
	clientSite.doVerb(OLE.OLEIVERB_INPLACEACTIVATE);

      int[] rgdispid = automation.getIDsOfNames(new String[]{"Border"});
      Variant result = automation.getProperty(rgdispid[0]);
      OleAutomation borderAuto = result.getAutomation();
                
      rgdispid = borderAuto.getIDsOfNames(new String[]{"LineStyle"}); 
      result = borderAuto.getProperty(rgdispid[0]);
      System.out.println("ERROR: " + borderAuto.getLastError());
      result = borderAuto.invoke(rgdispid[0], new Variant[] {new
Variant(4)});
      System.out.println("ERROR: " + borderAuto.getLastError());

      borderAuto.dispose();

The printlns show the following errors, both of which mean the method isn't
implemented in this interface.
	ERROR: OLE Automation Error Exception code = -2147467263 
	ERROR: OLE Automation Error HResult : -2147352573

The method is being found in borderAuto.getIDsOfNames, so what would be the
reason for these errors?

Thanks,
-Stephen

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