标签:上下 char multiple icon ati escape 对话框 mem set
// MutexExDlg.h : 头文件
//
#pragma once
// CMutexExDlg 对话框
class CMutexExDlg : public CDialogEx
{
// 构造
public:
CMutexExDlg(CWnd* pParent = NULL); // 标准构造函数
// 对话框数据
enum { IDD = IDD_MUTEXEX_DIALOG };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
static HANDLE hThread[3];
static HANDLE m_Semaphore;
static DWORD WINAPI ThreadProc0(LPVOID lpParameter);
static DWORD WINAPI ThreadProc1(LPVOID lpParameter);
static DWORD WINAPI ThreadProc2(LPVOID lpParameter);
static DWORD WINAPI ThreadProc3(LPVOID lpParameter);
// 实现
protected:
HICON m_hIcon;
// 生成的消息映射函数
virtual BOOL OnInitDialog();
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
DECLARE_MESSAGE_MAP()
public:
virtual BOOL PreTranslateMessage(MSG* pMsg);
afx_msg void OnBnClickedButton1();
static int m_Edit0;
static int m_Edit1;
static int m_Edit2;
static int m_Edit3;
};
// MutexExDlg.cpp : 实现文件
//
#include "stdafx.h"
#include "MutexEx.h"
#include "MutexExDlg.h"
#include "afxdialogex.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// CMutexExDlg 对话框
CMutexExDlg::CMutexExDlg(CWnd* pParent /*=NULL*/)
: CDialogEx(CMutexExDlg::IDD, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CMutexExDlg::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
DDX_Text(pDX, IDC_EDIT1, m_Edit0);
DDV_MinMaxInt(pDX, m_Edit0, 0, 1000);
DDX_Text(pDX, IDC_EDIT2, m_Edit1);
DDV_MinMaxInt(pDX, m_Edit1, 0, 1000);
DDX_Text(pDX, IDC_EDIT3, m_Edit2);
DDV_MinMaxInt(pDX, m_Edit2, 0, 1000);
DDX_Text(pDX, IDC_EDIT4, m_Edit3);
DDV_MinMaxInt(pDX, m_Edit3, 0, 1000);
}
BEGIN_MESSAGE_MAP(CMutexExDlg, CDialogEx)
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_BUTTON1, &CMutexExDlg::OnBnClickedButton1)
END_MESSAGE_MAP()
// CMutexExDlg 消息处理程序
BOOL CMutexExDlg::OnInitDialog()
{
CDialogEx::OnInitDialog();
// 设置此对话框的图标。 当应用程序主窗口不是对话框时,框架将自动
// 执行此操作
SetIcon(m_hIcon, TRUE); // 设置大图标
SetIcon(m_hIcon, FALSE); // 设置小图标
// TODO: 在此添加额外的初始化代码
return TRUE; // 除非将焦点设置到控件,否则返回 TRUE
}
// 如果向对话框添加最小化按钮,则需要下面的代码
// 来绘制该图标。 对于使用文档/视图模型的 MFC 应用程序,
// 这将由框架自动完成。
void CMutexExDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // 用于绘制的设备上下文
SendMessage(WM_ICONERASEBKGND, reinterpret_cast(dc.GetSafeHdc()), 0);
// 使图标在工作区矩形中居中
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// 绘制图标
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialogEx::OnPaint();
}
}
//当用户拖动最小化窗口时系统调用此函数取得光标
//显示。
HCURSOR CMutexExDlg::OnQueryDragIcon()
{
return static_cast(m_hIcon);
}
// 重写虚函数 PreTranslateMessage 屏蔽掉Esc键和Enter键
BOOL CMutexExDlg::PreTranslateMessage(MSG* pMsg)
{
if (pMsg->message == WM_KEYDOWN)
{
int keyCode = (int)pMsg->wParam;
if (keyCode == VK_ESCAPE || keyCode == VK_RETURN)
{
return TRUE;
}
}
return CDialogEx::PreTranslateMessage(pMsg);
}
HANDLE CMutexExDlg::m_Semaphore = NULL;
int CMutexExDlg::m_Edit0 = 0;
int CMutexExDlg::m_Edit1 = 0;
int CMutexExDlg::m_Edit2 = 0;
int CMutexExDlg::m_Edit3 = 0;
HANDLE CMutexExDlg::hThread[3] = { NULL };
// 抢红包按钮点击事件处理函数
void CMutexExDlg::OnBnClickedButton1()
{
// 获取编辑框内容到str变量
CString str;
GetDlgItem(IDC_EDIT1)->GetWindowText(str);
// CString 转 int
m_Edit0 = _ttoi(str);
m_Edit1 = 0;
m_Edit2 = 0;
m_Edit3 = 0;
// 这里需要创建一个线程 因为 WaitForMultipleObjects 会阻塞住 另外把this指针作为参数传递给线程,用于子线程更新编辑框内容
HANDLE hThread0 = ::CreateThread(NULL, NULL, ThreadProc0, this, NULL, NULL);
CloseHandle(hThread0);
}
DWORD WINAPI CMutexExDlg::ThreadProc0(LPVOID lpParameter)
{
CMutexExDlg* pDlg = (CMutexExDlg*)lpParameter;
// 创建一个信号量
m_Semaphore = ::CreateSemaphore(NULL,
0, // 表示初始资源数量,0时不发送信号
3, // 表示最大并发数量 lInitialCount
NULL);
// 创建三个线程抢红包
hThread[0] = ::CreateThread(NULL, NULL, ThreadProc1, lpParameter, NULL, NULL);
hThread[1] = ::CreateThread(NULL, NULL, ThreadProc2, lpParameter, NULL, NULL);
hThread[2] = ::CreateThread(NULL, NULL, ThreadProc3, lpParameter, NULL, NULL);
// 设置编辑框内容
::SetWindowText(::GetDlgItem(pDlg->m_hWnd, IDC_EDIT1), L"1000");
// 将对象设置为已通知状态
ReleaseSemaphore(m_Semaphore,
1, // 表示增加个数,必须大于0且不超过最大资源数量
NULL);
// 使用WaitForMultipleObjects监听所有线程,当线程全部结束后,调用CloseHandle关闭句柄.
WaitForMultipleObjects(3, hThread, TRUE, -1);
::CloseHandle(hThread[0]);
::CloseHandle(hThread[1]);
::CloseHandle(hThread[2]);
::CloseHandle(m_Semaphore);
return 0;
}
// 线程回调函数1
DWORD WINAPI CMutexExDlg::ThreadProc1(LPVOID lpParameter)
{
CMutexExDlg* pDlg = (CMutexExDlg*)lpParameter;
TCHAR szBuffer[10];
DWORD dwTimer = 0;
WaitForSingleObject(m_Semaphore, INFINITE);
while (dwTimer 100)
{
Sleep(50);
memset(szBuffer, 0, 10);
::GetWindowText(::GetDlgItem(pDlg->m_hWnd, IDC_EDIT2), szBuffer, 10);
swscanf(szBuffer, L"%d", &dwTimer);
dwTimer++;
memset(szBuffer, 0, 10);
swprintf(szBuffer, L"%d", dwTimer);
::SetWindowText(::GetDlgItem(pDlg->m_hWnd, IDC_EDIT2), szBuffer);
}
// 递增信号量的当前资源计数
ReleaseSemaphore(m_Semaphore, 1, NULL);
return 0;
}
// 线程回调函数2
DWORD WINAPI CMutexExDlg::ThreadProc2(LPVOID lpParameter)
{
CMutexExDlg* pDlg = (CMutexExDlg*)lpParameter;
TCHAR szBuffer[10];
DWORD dwTimer = 0;
WaitForSingleObject(m_Semaphore, INFINITE);
while (dwTimer 100)
{
Sleep(50);
memset(szBuffer, 0, 10);
::GetWindowText(::GetDlgItem(pDlg->m_hWnd, IDC_EDIT3), szBuffer, 10);
// 将TCHAR* 转换为 int
swscanf(szBuffer, L"%d", &dwTimer);
dwTimer++;
memset(szBuffer, 0, 10);
// int 转换为TCHAR*
swprintf(szBuffer, L"%d", dwTimer);
::SetWindowText(::GetDlgItem(pDlg->m_hWnd, IDC_EDIT3), szBuffer);
}
// 递增信号量的当前资源计数
ReleaseSemaphore(m_Semaphore, 1, NULL);
return 0;
}
// 线程回调函数3
DWORD WINAPI CMutexExDlg::ThreadProc3(LPVOID lpParameter)
{
CMutexExDlg* pDlg = (CMutexExDlg*)lpParameter;
TCHAR szBuffer[10];
DWORD dwTimer = 0;
WaitForSingleObject(m_Semaphore, INFINITE);
while (dwTimer 100)
{
Sleep(50);
memset(szBuffer, 0, 10);
::GetWindowText(::GetDlgItem(pDlg->m_hWnd, IDC_EDIT4), szBuffer, 10);
swscanf(szBuffer, L"%d", &dwTimer);
dwTimer++;
memset(szBuffer, 0, 10);
swprintf(szBuffer, L"%d", dwTimer);
::SetWindowText(::GetDlgItem(pDlg->m_hWnd, IDC_EDIT4), szBuffer);
}
// 递增信号量的当前资源计数
ReleaseSemaphore(m_Semaphore, 1, NULL);
return 0;
}
c++线程同步之信号量
标签:上下 char multiple icon ati escape 对话框 mem set
原文地址:https://www.cnblogs.com/duxie/p/11134923.html