如何在vc6中创建CObject的派生类 - 编程论坛

请问如何在vc6中派生Cobjec的类。
刚才用MFC向导生成了一个多文档程序。然后工程中创建了Stroke.h和Stroke.cpp文件，以创建CStroke(继承CObject)，可发现编译Stroke.cpp时一直错误。还望高手指点。
Stroke.h文件内容如下：

程序代码：

#ifndef CSTROKE_H
#define CSTROKE_H
#include "StdAfx.h"
class CStroke:public CObject
{
public:

CStroke(UINT nPenWidth);
protected:

CStroke();

DECLARE_SERIAL(CStroke)
//成员变量
protected:

UINT m_nPenWidth;
public:

CArray<CPoint,CPoint> m_pointArray;
//操作
public:

BOOL DrawStroke(CDC* pDC);

virtual void Serialize(CArchive& ar);
};
#endif

Stroke.cpp的内容：

程序代码：

#include "Stroke.h"
IMPLENT_SERIAL(CStroke,CObject,1)
CStroke::CStroke()
{
}
CStroke::CStroke(UINT nPenWidth)
{

m_nPenWidth=nPenWidth;
}
BOOL CStroke::DrawStroke(CDC* pDC)
{

CPen penStroke;

if(!penStroke.CreatePen(PS_SOLID,m_nPenWidth,RGB(0,0,0))
  return FALSE;

CPen* pOldPen=pDC->SelectObject(&penStroke);

pDC->MoveTo(m_pointArray[0]);

for(int i=0;i<m_pointArray.GetSize();i++)

{
  pDC->LineTo(m_pointArray[i]);

}

pDC->SelectObject(pOldPen);

return TRUE;
}
void CStroke::Serialize(CArchive &ar)
{

if(ar.IsStoring)

{
  ar<<(WORD)m_nPenWidth;

}

else

{
  WORD v;
  ar>>v;
  m_nPenWidth=v;

}

m_pointArray.Serialize(ar);
}

编译时一直提示错误：unexpected end of file while looking for precompiled header directive
Error executing cl.exe.
郁闷啊！