demoview.cpp

来自「Visual_C++.NET实用编程百例」· C++ 代码 · 共 140 行

// demoView.cpp : CdemoView 类的实现
//

#include "stdafx.h"
#include "demo.h"

#include "demoDoc.h"
#include "demoView.h"
#include ".\demoview.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CdemoView

IMPLEMENT_DYNCREATE(CdemoView, CView)

BEGIN_MESSAGE_MAP(CdemoView, 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_COMMAND(ID_DEMO, OnDemo)
END_MESSAGE_MAP()

// CdemoView 构造/析构

CdemoView::CdemoView()
{
	// TODO: 在此处添加构造代码

}

CdemoView::~CdemoView()
{
}

BOOL CdemoView::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);
}

// CdemoView 绘制

void CdemoView::OnDraw(CDC* /*pDC*/)
{
	CdemoDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	if (!pDoc)
		return;

	// TODO: 在此处为本机数据添加绘制代码
}


// CdemoView 打印

BOOL CdemoView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// 默认准备
	return DoPreparePrinting(pInfo);
}

void CdemoView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 打印前添加额外的初始化
}

void CdemoView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 打印后添加清除过程
}


// CdemoView 诊断

#ifdef _DEBUG
void CdemoView::AssertValid() const
{
	CView::AssertValid();
}

void CdemoView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CdemoDoc* CdemoView::GetDocument() const // 非调试版本是内联的
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CdemoDoc)));
	return (CdemoDoc*)m_pDocument;
}
#endif //_DEBUG


// CdemoView 消息处理程序

void CdemoView::OnDemo()
{
	// TODO: 在此添加命令处理程序代码
	try
	{
		GetException();
	}
	catch(int e)
	{
		AfxMessageBox("这是捕获的整数异常");
	}
	catch(char* e)
	{
		AfxMessageBox("这是捕获的字符异常");
	}
	catch(...)
	{
		AfxMessageBox("这是其他类型的异常");
	}
}

void CdemoView::GetException(void)
{
	static int i;
	switch(i++%3)
	{
	case 0:
		throw (int)1;
		break;
	case 1:
		throw "char";
		break;
	case 2:
		throw (double)0.5;
		break;	
	}
}