为什么小弟我自绘的edit控件 鼠标无法选择文本

为什么我自绘的edit控件 鼠标无法选择文本
先上个版主 CometNet大人的正确截图

下面这个是我的截图

我的鼠标在edit框内就是无法选择文本，不知道为何？？？


代码如下：
MyEdit.h

#pragma once

#ifndef _H_MYEDIT_H

#define _H_MYEDIT_H


class CMyEdit :public CEdit

{

	DECLARE_DYNAMIC(CMyEdit)

public:

	CMyEdit(void);

	~CMyEdit(void);

	void DrawFrame();


protected:


	afx_msg void OnMouseLeave();

	afx_msg void OnMouseMove(UINT nFlags, CPoint point);

	afx_msg void  OnNcPaint();

 	afx_msg void  OnPaint();

	DECLARE_MESSAGE_MAP()


public:

	bool m_isinedit;

	CBrush m_normalbrush1;

	CBrush m_normalbrush2;

	CBrush m_hoverbrush1;

	CBrush m_hoverbrush2;

};

#endif

MyEdit.cpp

#include "StdAfx.h"

#include "MyEdit.h"


IMPLEMENT_DYNAMIC(CMyEdit, CEdit)

CMyEdit::CMyEdit(void)

{

	m_isinedit=false;

	m_hoverbrush1.CreateSolidBrush(0xFDC860);

    m_hoverbrush2.CreateSolidBrush(0xE7AC49);

	m_normalbrush1.CreateSolidBrush(GetSysColor(COLOR_BTNFACE));

	m_normalbrush2.CreateSolidBrush(GetSysColor(COLOR_WINDOWFRAME));

}


CMyEdit::~CMyEdit(void)

{

}

BEGIN_MESSAGE_MAP(CMyEdit, CEdit)

	ON_WM_MOUSEMOVE()

	ON_WM_MOUSELEAVE()

	ON_WM_NCPAINT()

	ON_WM_PAINT()

END_MESSAGE_MAP()


void CMyEdit::OnMouseMove(UINT nFlags, CPoint point)

{

	if (!m_isinedit)

	{

		TRACKMOUSEEVENT mouseevent;

		mouseevent.cbSize=sizeof(mouseevent);

		mouseevent.dwFlags=TME_LEAVE;

		mouseevent.dwHoverTime=10;

		mouseevent.hwndTrack=m_hWnd;

		_TrackMouseEvent(&mouseevent);

		m_isinedit=true;

		DrawFrame();

	}

}


void CMyEdit::OnMouseLeave()

{

	m_isinedit=false;

	DrawFrame();

}


void CMyEdit::OnNcPaint()

{

	CEdit::OnNcPaint();//先调用基类的OnNcPaint()让系统画图，系统画完后再我们画

	DrawFrame();


}


void  CMyEdit::OnPaint()

{

	CEdit::OnPaint();

}


void CMyEdit::DrawFrame()

{

	CDC* pDC = GetWindowDC( );

	CRect rect;

	GetWindowRect( &rect);

	rect.OffsetRect( -rect.left, -rect.top);

	if (m_isinedit)

	{

		pDC->FrameRect( &rect, &m_hoverbrush1);

		rect.InflateRect(-1,-1);

		pDC->FrameRect( &rect, &m_hoverbrush2);


	}

	else

	{

		pDC->FrameRect( &rect, &m_normalbrush1);

		rect.InflateRect(-1,-1);

		pDC->FrameRect( &rect, &m_normalbrush2);


	}

	ReleaseDC( pDC);

}

------解决方案--------------------
void CMyEdit::OnMouseMove(UINT nFlags, CPoint point)
这个函数的最后调用一下基类的函数
CEdit::OnMouseMove(nFlags, point);