我不得不做这样的事情,但是涉及调用 Windows API 函数的过程非常繁琐。问题是 Chrome 似乎对多个窗口使用单个进程或其他一些奇怪的东西,这意味着简单的方法对我不起作用。
无论如何,试试这个,看看它是否有效。基本上,它使用 Chrome 窗口类名(可能是 Chrome_WidgetWin_0 或 Chrome_WidgetWin_1)来枚举具有该类名的所有窗口,并返回非空白窗口的标题。
请注意,由于某种原因,这也总是返回一个名为 "Chrome App Launcher" 的窗口标题,因此您可能需要将其过滤掉。
注意:您也可以在 Firefox 上使用“MozillaWindowClass”,在 IE 上使用“IEFrame”(尽管其中任何一个都可能随不同版本而改变)。
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Runtime.InteropServices;
using System.Security;
using System.Text;
namespace Demo
{
class WindowsByClassFinder
{
public delegate bool EnumWindowsDelegate(IntPtr hWnd, IntPtr lparam);
[SuppressMessage("Microsoft.Security", "CA2118:ReviewSuppressUnmanagedCodeSecurityUsage"), SuppressUnmanagedCodeSecurity]
[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
public static extern int GetClassName(IntPtr hWnd, StringBuilder lpClassName, int nMaxCount);
[SuppressMessage("Microsoft.Security", "CA2118:ReviewSuppressUnmanagedCodeSecurityUsage"), SuppressUnmanagedCodeSecurity]
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public extern static bool EnumWindows(EnumWindowsDelegate lpEnumFunc, IntPtr lparam);
[SuppressMessage("Microsoft.Security", "CA2118:ReviewSuppressUnmanagedCodeSecurityUsage"), SuppressUnmanagedCodeSecurity]
[DllImport("User32", CharSet=CharSet.Auto, SetLastError=true)]
public static extern int GetWindowText(IntPtr windowHandle, StringBuilder stringBuilder, int nMaxCount);
[DllImport("user32.dll", EntryPoint = "GetWindowTextLength", SetLastError = true)]
internal static extern int GetWindowTextLength(IntPtr hwnd);
/// <summary>Find the windows matching the specified class name.</summary>
public static IEnumerable<IntPtr> WindowsMatching(string className)
{
return new WindowsByClassFinder(className)._result;
}
private WindowsByClassFinder(string className)
{
_className = className;
EnumWindows(callback, IntPtr.Zero);
}
private bool callback(IntPtr hWnd, IntPtr lparam)
{
if (GetClassName(hWnd, _apiResult, _apiResult.Capacity) != 0)
{
if (string.CompareOrdinal(_apiResult.ToString(), _className) == 0)
{
_result.Add(hWnd);
}
}
return true; // Keep enumerating.
}
public static IEnumerable<string> WindowTitlesForClass(string className)
{
foreach (var windowHandle in WindowsMatchingClassName(className))
{
int length = GetWindowTextLength(windowHandle);
StringBuilder sb = new StringBuilder(length + 1);
GetWindowText(windowHandle, sb, sb.Capacity);
yield return sb.ToString();
}
}
public static IEnumerable<IntPtr> WindowsMatchingClassName(string className)
{
if (string.IsNullOrWhiteSpace(className))
throw new ArgumentOutOfRangeException("className", className, "className can't be null or blank.");
return WindowsMatching(className);
}
private readonly string _className;
private readonly List<IntPtr> _result = new List<IntPtr>();
private readonly StringBuilder _apiResult = new StringBuilder(1024);
}
class Program
{
void run()
{
ChromeWindowTitles().Print();
}
public IEnumerable<string> ChromeWindowTitles()
{
foreach (var title in WindowsByClassFinder.WindowTitlesForClass("Chrome_WidgetWin_0"))
if (!string.IsNullOrWhiteSpace(title))
yield return title;
foreach (var title in WindowsByClassFinder.WindowTitlesForClass("Chrome_WidgetWin_1"))
if (!string.IsNullOrWhiteSpace(title))
yield return title;
}
static void Main()
{
new Program().run();
}
}
static class DemoUtil
{
public static void Print(this object self)
{
Console.WriteLine(self);
}
public static void Print(this string self)
{
Console.WriteLine(self);
}
public static void Print<T>(this IEnumerable<T> self)
{
foreach (var item in self)
Console.WriteLine(item);
}
}
}