pic1.cpp

汽车数据采集

// pic1.cpp : implementation file
//

#include "stdafx.h"
#include "cartest.h"
#include "pic1.h"

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

/////////////////////////////////////////////////////////////////////////////
// Cpic

Cpic::Cpic()
{
}

Cpic::~Cpic()
{
}


BEGIN_MESSAGE_MAP(Cpic, CStatic)
	//{{AFX_MSG_MAP(Cpic)
	ON_WM_PAINT()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// Cpic message handlers
CPen newpen,*oldpen;
BOOL Cpic::PreCreateWindow(CREATESTRUCT& cs) 
{
	// TODO: Add your specialized code here and/or call the base class
	
	return CStatic::PreCreateWindow(cs);
}
CDC globaldc;
void Cpic::OnPaint() 
{
	
	newpen.CreatePen (PS_DASH,2,RGB(255,0,0));
	CPaintDC dc(this); // device context for painting
	globaldc==dc;
    oldpen=dc.SelectObject (&newpen);
	//画原点
	dc.TextOut (0,300,"原点");
	//画坐标轴
	dc.MoveTo (2,0);
    dc.LineTo (2,300);
	dc.LineTo (400,300);
    dc.MoveTo (0,4);
	dc.LineTo (2,0);
	dc.LineTo (4,4);
	dc.MoveTo (396,298);
	dc.LineTo (400,300);
	dc.LineTo(396,302);

	//画刻度
	
	int i,j;
	for (i=0;i<29;i++)
	{
		dc.MoveTo (2,300-10*i);
		dc.LineTo (4,300-10*i);
	}
	for (j=0;j<38;j++)
	{ 
		dc.MoveTo (2+10*j,300);
		dc.LineTo (2+10*j,298);
	}
	// TODO: Add your message handler code here
	
	// Do not call CStatic::OnPaint() for painting messages
}