XDM_Control call within OMX application

Hi,

How do I make an XDM Control call from within an OMX application?

Can someone give me an example?

I need to be able to detect the decoder error IH264VDEC_ERR_PICSIZECHANGE so I think I need to call GET_STATUS to get this.

I tried   eError = OMX_GetConfig( pAppData->pDecHandle, OMX_TI_IndexConfigVideoStatus, &status );

But this returns the OMX_NotImplemented error.

Is there a way to detect this error through an event callback?

Thanks,

Steven