Leader&amp&amp；吉格。

#pragma once
#include "dbjig.h"
class LeaderJig : public AcEdJig
{
private:
  AcGePoint3d m_curpnt;
  AcGePoint3d m_lastpnt;
  AcDbObjectId m_id;
  AcDbLeader *m_leader;
public:
  LeaderJig();
  virtual ~LeaderJig(void);
  virtual AcEdJig::DragStatus sampler( void );
  virtual Adesk::Boolean update(void);
  virtual AcDbEntity* entity(void) const;
  Acad::PromptStatus doit (void);
  int GetStartPoint(AcGePoint3d & startPt);
  const AcDbObjectId& getObjectId() const { return m_id; }
  __declspec(property(get = getObjectId))AcDbObjectId ObjectId;
};

#include "StdAfx.h"
#include "LeaderJig.h"
LeaderJig::LeaderJig() 
: AcEdJig(), m_curpnt(0.0,0.0,0.0), m_lastpnt(0.0,0.0,0.0), m_id(0),m_leader(0)
{
  m_leader = new AcDbLeader();
  m_leader->setDatabaseDefaults();
  m_leader->setToSplineLeader(); //appendVertex(m_curpnt);
    stat = drag();
  }
  if( (m_id = append()) == AcDbObjectId::kNull)
    return Acad::eError;
  return Acad::eNormal;
}