WindowAPIHelper.cs

using System;
using System.Drawing;
using System.Runtime.InteropServices;

namespace NA_Line_Broadcaster
{
    public static class WindowAPIHelper
    {
        public enum ShowWindowEnum
        {
            Hide = 0,
            ShowNormal = 1, ShowMinimized = 2, ShowMaximized = 3,
            Maximize = 3, ShowNormalNoActivate = 4, Show = 5,
            Minimize = 6, ShowMinNoActivate = 7, ShowNoActivate = 8,
            Restore = 9, ShowDefault = 10, ForceMinimized = 11
        };

        public struct WindowPlacement
        {
            public int Leng;
            public int flags;
            public int showCmd;
            public Point ptMinPosition;
            public Point ptMaxPosition;
            public Rectangle rcNormalPosition;
        }

        [DllImport("user32.dll")]
        [return: MarshalAs(UnmanagedType.Bool)]
        public static extern bool GetWindowPlacement(IntPtr hWnd, ref WindowPlacement lpwndpl);

        [DllImport("USER32.DLL", CharSet = CharSet.Unicode)]
        public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

        [DllImport("user32.dll")]
        [return: MarshalAs(UnmanagedType.Bool)]
        public static extern bool ShowWindow(IntPtr hWnd, ShowWindowEnum flags);

        [DllImport("USER32.DLL")]
        public static extern bool SetForegroundWindow(IntPtr hWnd);

        [DllImport("user32.dll", SetLastError = true)]
        internal static extern bool MoveWindow(IntPtr hWnd, int X, int Y, int nWidth, int nHeight, bool bRepaint);

        public static void BringWindowToFront(string windowTitle)
        {
            IntPtr wdwIntPtr = FindWindow(null, windowTitle);

            //get the hWnd of the process
            WindowPlacement placement = new WindowPlacement();
            GetWindowPlacement(wdwIntPtr, ref placement);

            // Check if window is minimized
            if (placement.showCmd == 2)
                //the window is hidden so we restore it
                ShowWindow(wdwIntPtr, ShowWindowEnum.Restore);

            //set user's focus to the window
            SetForegroundWindow(wdwIntPtr);
        }
    }
}