Qt监控后台服务运行状态

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QMap>
#include <QTimer>

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
Q_OBJECT

public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();

void getAllAppPidList(QMap<QString, qint64> &app_pid);
void OpenServiceManager();
private slots:
void scanTable();

void on_pushButton_add_progress_clicked();

void on_pushButton_add_service_clicked();

private:
Ui::MainWindow *ui;
QTimer* scanTimer;
};

#endif // MAINWINDOW_H

#include <windows.h>// for OpenService
#include <tlhelp32.h>// for CreateToolhelp32Snapshot
#include <Psapi.h>   // for GetModuleFileNameEx
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QDebug>
/*
*
* =================================================================
* ！！！！！！！！！！！！！本程序需要管理员身份运行！！！！！！！！！！！！！！！
* =================================================================
*
* */

//使用带bom的UTF8文件格式，在Tools-Options-Text Editor-Behavior-File Encoding-UTF-8 BOM:Add If Emcoding Is UTF-8
#pragma execution_character_set("utf-8")

SC_HANDLE hSCM;

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);

scanTimer = new QTimer(this);
connect( scanTimer, SIGNAL(timeout()), SLOT(scanTable()) );
scanTimer->start( 10 );  // for 100fps

OpenServiceManager();
}

MainWindow::~MainWindow()
{
delete ui;
CloseServiceHandle(hSCM);
}

void MainWindow::scanTable()
{
//进程
for(int row=0; row<ui->tableWidget_progress->rowCount(); row++)
for(int col=0; col<ui->tableWidget_progress->columnCount();col++)
{
QTableWidgetItem* item = ui->tableWidget_progress->item(row,col);
if(item!=NULL)
{
QString app=item->text();
}
}

//检测服务是否在运行
if(hSCM)
{
for(int row=0; row<ui->tableWidget_service->rowCount(); row++)
for(int col=0; col<ui->tableWidget_service->columnCount();col++)
{
QTableWidgetItem* item = ui->tableWidget_service->item(row,col);
if(item!=NULL)
{
QString serviceName=item->text();
SC_HANDLE hService = ::OpenService( hSCM, serviceName.toStdWString().data(), SERVICE_ALL_ACCESS );
if(hService)
{
SERVICE_STATUS ssStatus;
QueryServiceStatus(hService,&ssStatus);//查看该Service的状态
if(ssStatus.dwCurrentState==SERVICE_STOPPED)
{
::StartService( hService, 0, NULL );
ui->textEdit->append("StartService "+serviceName);
}
else if(ssStatus.dwCurrentState==SERVICE_RUNNING)
{
item->setBackground(Qt::green);
}
CloseServiceHandle(hService);
}
else
{
//ui->textEdit->append("OpenService Failed  "+serviceName);
item->setBackground(Qt::red);
}
}
}
}
}

void MainWindow::OpenServiceManager()
{
/*
*
*
* 以下服务相关操作需要管理员权限
*
*
*
* */
hSCM = ::OpenSCManager(NULL, // local machine
NULL, // ServicesActive database
SC_MANAGER_ALL_ACCESS); // full access
if (hSCM) {
//hService = ::OpenService( hSCM, QString("STEPVR_MMAP_SERVICE").toStdWString().data(), SERVICE_ALL_ACCESS );
//if(hService==NULL)
//    ui->textEdit->append("OpenService Failed");
}
else
{
qDebug()<<"OpenSCManager Fail"<<GetLastError();
ui->textEdit->append("OpenSCManager Failed");
}
}

// 根据进程号获取exe所在文件绝对路径
/*QString GetPathByProcessID(DWORD pid)
{
HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, pid);
if (!hProcess)
{
//QMessageBox::warning(NULL,"GetPathByProcessID","无权访问该进程");
return "";
}
WCHAR filePath[MAX_PATH];
DWORD ret= GetModuleFileNameEx(hProcess, NULL, filePath, MAX_PATH) ;
QString file = QString::fromStdWString( filePath );
//QMessageBox::warning(NULL,"GetPathByProcessID ret=", QString::number(ret)+":"+file);
CloseHandle(hProcess);
return ret==0?"":file;
}

// 获取机器上正在运行的全部exe
void MainWindow::getAllAppPidList(QMap<QString, qint64> &app_pid)
{
app_pid.clear();
PROCESSENTRY32 pe32;
pe32.dwSize = sizeof(pe32);
HANDLE hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);
if(hProcessSnap == INVALID_HANDLE_VALUE)
{
//warningLabel->setText("CreateToolhelp32Snapshot调用失败");
return ;
}
BOOL bMore = Process32First(hProcessSnap,&pe32);
while(bMore)
{
//printf("进程名称：%s\n",pe32.szExeFile);
//printf("进程ID：%u\n\n",pe32.th32ProcessID);

QString exeName = (QString::fromUtf16(reinterpret_cast<const unsigned short *>(pe32.szExeFile)));
QString exePath = GetPathByProcessID( pe32.th32ProcessID );
exePath = FORMAT_PATH( exePath );
//qDebug()<<exePath.toLower();
if( exePath.isEmpty() )
{
//warningLabel->setText("获取进程 " + exeName + " 路径失败");
}
else
{
app_pid[exePath] = pe32.th32ProcessID;
}

bMore = Process32Next(hProcessSnap,&pe32);
}
CloseHandle(hProcessSnap);
}*/

void MainWindow::on_pushButton_add_progress_clicked()
{
ui->tableWidget_progress->insertRow(ui->tableWidget_progress->rowCount());
}

void MainWindow::on_pushButton_add_service_clicked()
{
ui->tableWidget_service->insertRow(ui->tableWidget_service->rowCount());
}