Window.cs

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using System;
using System.Runtime.InteropServices;
using System.Text;
 
namespace B83.Win32;
 
public static class Window
{
    [DllImport("user32.dll")]
    public static extern bool EnumThreadWindows(uint dwThreadId, EnumThreadDelegate lpfn, IntPtr lParam);
 
    [DllImport("user32.dll", SetLastError = true)]
    public static extern bool GetWindowRect(IntPtr hwnd, out RECT lpRect);
 
    [DllImport("user32.dll")]
    public static extern bool IsWindowVisible(IntPtr hWnd);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
    private static extern int GetClassName(IntPtr hWnd, StringBuilder lpClassName, int nMaxCount);
 
    public static string GetClassName(IntPtr hWnd)
    {
        StringBuilder stringBuilder = new StringBuilder(256);
        int className = GetClassName(hWnd, stringBuilder, 256);
        return stringBuilder.ToString(0, className);
    }
 
    [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
    private static extern int GetWindowTextLength(IntPtr hWnd);
 
    [DllImport("user32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
    private static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);
 
    public static string GetWindowText(IntPtr hWnd)
    {
        int num = GetWindowTextLength(hWnd) + 2;
        StringBuilder stringBuilder = new StringBuilder(num);
        int windowText = GetWindowText(hWnd, stringBuilder, num);
        return stringBuilder.ToString(0, windowText);
    }
}