Stop text adornments from coming in Overprint preview and PDF

Hi, I am working with text adornments and referring the basicTextAdornment sample plugin from Indesign SDK.

Please have a look at below routine from the ITextAdornment.h interface:

/**  Draw the text adornment.
   Two important IShape flags must be observed:

  IShape::kPrinting       If set, indicates that we are printing.


  IShape::kPreviewMode    If set, indicates that we are previewing
  printing to the screen, text adornments
  that do not draw when printing should not
  draw for this either

  @param gd IN Pointer to the GraphicsData.
  @param iShapeFlags IN The value of the flags parameter passed into IShape::Draw.
  @param waxRun IN An interface on this wax run boss. 
  @param renderData An interface on this wax run boss.  It can be nil, meaning the WaxRunis NOT a typical text run.
  @param waxGlyphs IN An interface on this wax run boss.  It can be nil, meaning the WaxRunis NOT a typical text run.
  @param data IN pointer to optional ITextAdornmentData.  It may be nil if no data is specified when the adornment was attached.
  */
  virtual void Draw(GraphicsData *gd, int32 iShapeFlags,
  IWaxRun* waxRun,
  IWaxRenderData* renderData,
  IWaxGlyphs* waxGlyphs,
  const ITextAdornmentData *data) = 0;

We can see that the value for the parameter 'iShapeFlags' can be set to either kPrinting or kPreviewMode, but I don't want the text adornments to be part of any one of them.

Can some one suggest how we can stop this?

Is there kPrinting