How get Underline Type of Character?

this function attribute of textrange:

template <class textattrtype, class _val_type>

errorcode gettextscriptprovider::gettextattribute(const indesign::textrange& textrange,

    const classid& attrclassid,

    _val_type& value)

{

  // assume failure.

  value=0;

  errorcode status = kfailure;

 

  {

  // check if text range valid.

  if (textrange.isvalid() == kfalse)

  {

  //sniplog("textrange invalid - must have text selected first.");

  break;

  }

  // query text model , range data,

  interfaceptr<itextmodel> textmodel(textrange.querymodel());

  rangedata rangedata = textrange.getrange();

 

  // query compose scanner access text attributes

  interfaceptr<icomposescanner> composescanner(textmodel, usedefaultiid());

  if (composescanner == nil)

  {

  assert(composescanner); break;

  }

   // query attribute report interface

  int32 attrlen = 0;

  interfaceptr<const iattrreport> attrreport(composescanner->queryattributeat(rangedata, attrclassid, &attrlen));

  if (attrreport == nil)

  {

  //sniplog("could not find text attribute class id 0x%x on selected text!", attrclassid.get());

  break;

  }

 

  // query attribute interface

  interfaceptr<textattrtype> attr(attrreport, textattrtype::kdefaultiid);

  if (attr == nil)

  {

  //sniplog("attr nil! (class id 0x%x)", attrclassid.get());

  break;

  }

 

  // attribute value.

  const _val_type tempvalue = attr->get();

  value = tempvalue;

  status = ksuccess;

  } while (false);

 

 

  return status;

}

 

this code underline type, no working:

int16 underlinetype;

res=gettextattribute<itextattrint16, itextattrint16::valuetype>(ocharrange, ktextattrcharunderlinetypeboss,underlinetype);

 

how underline type of character?

ktextattrcharunderlinetypeboss doesn't have itextattrint16 interface.

use itextattrstroketype textattrtype.

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