如何检查浏览器是否已经打开?我知道可以检查一个进程,但有时候进程正在运行,但是计算机上的浏览器仍在启动中。我只需要针对两个浏览器进行检查,即Chrome和Firefox。
如何检查浏览器是否已经打开?我知道可以检查一个进程,但有时候进程正在运行,但是计算机上的浏览器仍在启动中。我只需要针对两个浏览器进行检查,即Chrome和Firefox。
以下代码获取所有正在运行的进程的文件名。如果firefox.exe存在于返回的哈希集列表中,那么它就意味着Firefox正在运行。
var RunningProcessPaths = ProcessFileNameFinderClass.GetAllRunningProcessFilePaths();
if (RunningProcessPaths.Contains("firefox.exe"))
{
//firefox is running
Debug.WriteLine("firefox is running");
}
if (RunningProcessPaths.Contains("chrome.exe"))
{
//Google Chrome is running
Debug.WriteLine("chrome is running");
}
辅助类
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using System.Runtime.InteropServices;
public class ProcessFileNameFinderClass
{
public static HashSet<string> GetAllRunningProcessFilePaths()
{
var allProcesses = System.Diagnostics.Process.GetProcesses();
HashSet<string> ProcessExeNames = new HashSet<string>(StringComparer.InvariantCultureIgnoreCase);
foreach (Process p in allProcesses)
{
string processExePath = GetProcessExecutablePath(p);
ProcessExeNames.Add(System.IO.Path.GetFileName(processExePath));
}
return ProcessExeNames;
}
/// <summary>
/// Get executable path of running process
/// </summary>
/// <param name="Process"></param>
/// <returns></returns>
public static string GetProcessExecutablePath(Process Process)
{
try
{
if (Environment.OSVersion.Version.Major >= 6)
{
return GetExecutablePathAboveXP(Process.Id);// this gets the process file name without running as administrator
}
return Process.MainModule.FileName;// Vista and later this requires running as administrator.
}
catch
{
return "";
}
}
public static string GetExecutablePathAboveXP(int ProcessId)
{
int MAX_PATH = 260;
StringBuilder sb = new StringBuilder(MAX_PATH + 1);
IntPtr hprocess = OpenProcess(ProcessAccessFlags.PROCESS_QUERY_LIMITED_INFORMATION, false, ProcessId);
if (hprocess != IntPtr.Zero)
{
try
{
int size = sb.Capacity;
if (QueryFullProcessImageName(hprocess, 0, sb, ref size))
{
return sb.ToString();
}
}
finally
{
CloseHandle(hprocess);
}
}
return "";
}
[Flags()]
private enum ProcessAccessFlags : uint
{
PROCESS_ALL_ACCESS = 0x1f0fff,
PROCESS_TERMINATE = 0x1,
PROCESS_CREATE_THREAD = 0x2,
PROCESS_VM_OPERATION = 0x8,
PROCESS_VM_READ = 0x10,
PROCESS_VM_WRITE = 0x20,
PROCESS_DUP_HANDLE = 0x40,
PROCESS_SET_INFORMATION = 0x200,
PROCESS_SET_QUOTA = 0x100,
PROCESS_QUERY_INFORMATION = 0x400,
PROCESS_QUERY_LIMITED_INFORMATION = 0x1000,
SYNCHRONIZE = 0x100000,
PROCESS_CREATE_PROCESS = 0x80,
PROCESS_SUSPEND_RESUME = 0x800
}
[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
private static extern bool QueryFullProcessImageName(IntPtr hProcess, uint dwFlags, [Out(), MarshalAs(UnmanagedType.LPTStr)] StringBuilder lpExeName, ref int lpdwSize);
[DllImport("kernel32.dll")]
private static extern IntPtr OpenProcess(ProcessAccessFlags dwDesiredAccess, [MarshalAs(UnmanagedType.Bool)] bool bInheritHandle, int dwProcessId);
[DllImport("kernel32.dll", SetLastError = true)]
private static extern bool CloseHandle(IntPtr hHandle);
}