WinApi.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using System.Diagnostics;

namespace SeciControls
{
    public static class WinApi
    {
        public const int MF_REMOVE = 0x1000;
        public const int MF_BYPOSITION = 0x400;

        [DllImport("user32.dll")]
        public static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);

        [DllImport("user32.dll")]
        public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

        [DllImport("user32.dll")]
        public static extern bool LockWindowUpdate(IntPtr hwndLock);

        [DllImport("user32.dll")]
        public static extern IntPtr GetDesktopWindow();

        [DllImport("User32")]
        public static extern IntPtr GetSystemMenu(IntPtr hWnd, [MarshalAs(UnmanagedType.Bool)] Boolean revert);

        [DllImport("User32")]
        public static extern int GetMenuItemCount(IntPtr hMenu);

        [DllImport("User32")]
        public static extern int RemoveMenu(IntPtr hMenu, int index, int flags);

        [DllImport("User32")]
        public static extern int MoveWindow(IntPtr hWnd, int x, int y, int cx, int cy, [MarshalAs(UnmanagedType.Bool)] Boolean repaint);

        [DllImport("User32")]
        [return: MarshalAs(UnmanagedType.Bool)]
        public static extern bool GetWindowRect(IntPtr hWnd, out Rect lpRect);

        [DllImport("User32")]
        public static extern int ShowWindow(int hWnd, int nCmdShow);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern int GetWindowText(int hWnd, StringBuilder lpString, int nMaxCount);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern int GetWindowTextLength(int hWnd);


        public class EnumReport
        {
            private delegate bool CallBackPtr(int hwnd, int lParam);
            private CallBackPtr callBackPtr;

            public static List<int> Handles = new List<int>();

            [DllImport("user32.dll")]
            private static extern int EnumWindows(CallBackPtr callPtr, int lPar);

            public static bool Report(int hwnd, int lParam)
            {
                Handles.Add(hwnd);
                return true;
            }

            public void GetEnums()
            {
                callBackPtr = new CallBackPtr(EnumReport.Report);
                EnumReport.EnumWindows(callBackPtr, 0);
            }
        }

        public struct Rect
        {
            public int X;
            public int Y;
            public int Width;
            public int Height;
        }

    }
}