绘图程序

开发平台：

Visual C++

画图View.cpp：源码内容

							// 画图View.cpp : C画图View 类的实现
//
#include "stdafx.h"
#include "画图.h"
#include "画图Doc.h"
#include "画图View.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// C画图View
IMPLEMENT_DYNCREATE(C画图View, CView)
BEGIN_MESSAGE_MAP(C画图View, CView)
	// 标准打印命令
	ON_COMMAND(ID_FILE_PRINT, &CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, &CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, &CView::OnFilePrintPreview)
	ON_WM_LBUTTONDOWN()
	ON_WM_LBUTTONUP()
	ON_WM_MOUSEMOVE()
END_MESSAGE_MAP()
// C画图View 构造/析构
C画图View::C画图View()
: m_point(0)
, m_b(false)
{
	m_point=0;// TODO: 在此处添加构造代码
}
C画图View::~C画图View()
{
}
BOOL C画图View::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: 在此处通过修改
	//  CREATESTRUCT cs 来修改窗口类或样式
	return CView::PreCreateWindow(cs);
}
// C画图View 绘制
void C画图View::OnDraw(CDC* /*pDC*/)
{
	C画图Doc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	if (!pDoc)
		return;
	// TODO: 在此处为本机数据添加绘制代码
}
// C画图View 打印
BOOL C画图View::OnPreparePrinting(CPrintInfo* pInfo)
{
	// 默认准备
	return DoPreparePrinting(pInfo);
}
void C画图View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 添加额外的打印前进行的初始化过程
}
void C画图View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 添加打印后进行的清理过程
}
// C画图View 诊断
#ifdef _DEBUG
void C画图View::AssertValid() const
{
	CView::AssertValid();
}
void C画图View::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}
C画图Doc* C画图View::GetDocument() const // 非调试版本是内联的
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(C画图Doc)));
	return (C画图Doc*)m_pDocument;
}
#endif //_DEBUG
// C画图View 消息处理程序
void C画图View::OnLButtonDown(UINT nFlags, CPoint point)
{
	m_point=point;// TODO: 在此添加消息处理程序代码和/或调用默认值
    m_b=TRUE;
	CView::OnLButtonDown(nFlags, point);
}
void C画图View::OnLButtonUp(UINT nFlags, CPoint point)
{
	// TODO: 在此添加消息处理程序代码和/或调用默认值
    /*CDC *pDC=GetDC();
	pDC->MoveTo(m_point);
	pDC->LineTo(point);
	ReleaseDC(pDC);*/
    /*CBitmap bitmap;
	bitmap.LoadBitmap(IDB_BITMAP1);
	CBrush brush(&bitmap);
	dc.FillRect(CRect(m_point,point),&brush);*/
	/*CClientDC dc(this);
	CBrush brush(RGB(0,255,0));
	dc.Rectangle(CRect(m_point,point));
	dc.SelectObject(brush);*/
    m_b=FALSE;
	CView::OnLButtonUp(nFlags, point);
}
void C画图View::OnMouseMove(UINT nFlags, CPoint point)
{
	CClientDC dc(this);
	CPen pen(PS_SOLID,1,RGB(255,0,0));
	CPen *pOldpen=dc.SelectObject(&pen);
	if(m_b==TRUE)
	{
		dc.MoveTo(m_point);
		dc.LineTo(point);
		m_point=point;
	}
	dc.SelectObject(pOldpen);
	// TODO: 在此添加消息处理程序代码和/或调用默认值
	CView::OnMouseMove(nFlags, point);
}

						