testthreadview.cpp

这个是我们学校用的VC++教案

// TestThreadView.cpp : implementation of the CTestThreadView class
//

#include "stdafx.h"
#include "TestThread.h"
#include "TestThreadDoc.h"
#include "TestThreadView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CTestThreadView

IMPLEMENT_DYNCREATE(CTestThreadView, CView)

BEGIN_MESSAGE_MAP(CTestThreadView, CView)
	//{{AFX_MSG_MAP(CTestThreadView)
	ON_COMMAND(ID_WORKTHREAD, OnWorkthread)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTestThreadView construction/destruction

CTestThreadView::CTestThreadView()
{
	// TODO: add construction code here

}

CTestThreadView::~CTestThreadView()
{
}

BOOL CTestThreadView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CTestThreadView drawing

void CTestThreadView::OnDraw(CDC* pDC)
{
	CTestThreadDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CTestThreadView printing

BOOL CTestThreadView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CTestThreadView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CTestThreadView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CTestThreadView diagnostics

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

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

CTestThreadDoc* CTestThreadView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CTestThreadDoc)));
	return (CTestThreadDoc*)m_pDocument;
}
#endif //_DEBUG

UINT MyWorkThread(LPVOID pParam)
{
	CWnd* pMainWnd=AfxGetMainWnd();
	if(pParam==NULL)
	{
		::MessageBox(pMainWnd->m_hWnd,"参数传递出错。线程结束!",
			"Thread error",MB_OK|MB_ICONERROR);
		AfxEndThread(2);  // 结束线程
	}
	char* pStr=(char*)pParam;
	while(*pStr)
	{
		if(*pStr>='a' && *pStr<='z')
			*pStr-=32; //将小写字母转换为大写字母。
		pStr++;//指向下一个字符
	}
	::MessageBox(pMainWnd->m_hWnd,(const char*)pParam,"Thread run",MB_OK);
	return 0;
}

char MyStr[]="We are using work thread now !";  // 使用全局变量
char UpperStr[]="We are using work thread now !";

void CTestThreadView::OnWorkthread() 
{
	// TODO: Add your command handler code here
    CDC* pDC=GetDC();
	pDC->TextOut(20,20,"转换之前的字符串为:");
	pDC->TextOut(40,60,MyStr);
	char* pString;
	pString=(char*)UpperStr;
	// 启动工作线程，MyWorkThread是线程函数
	AfxBeginThread(MyWorkThread,(LPVOID)pString);
	pDC->TextOut(20,100,"转换之后的字符串为:");
	pDC->TextOut(40,140,UpperStr);
	ReleaseDC(pDC);
}