mymapx.cpp

一种新的实现鹰眼图的方法

// MyMapX.cpp: implementation of the CMyMapX class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "gis.h"
#include "MyMapX.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
BEGIN_MESSAGE_MAP(CMyMapX, CWnd)
	//{{AFX_MSG_MAP(CMiWindow)
	//ON_WM_SIZE()
	//ON_WM_CREATE()
	ON_WM_PAINT()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()


CMyMapX::CMyMapX()
{

}

CMyMapX::~CMyMapX()
{

}
void CMyMapX::OnPaint()
{
	CPaintDC dc(this);

	//画出用户的视野范围
	dc.MoveTo(m_left,m_top);
	dc.LineTo(m_left,m_bottom);
	dc.LineTo(m_right,m_bottom);
	dc.LineTo(m_right,m_top);
	dc.LineTo(m_left,m_top);
}