// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
// Description: Safe P/Invokes used by UIAutomation
 
using System.Runtime.InteropServices;
using System;
 
namespace MS.Win32
{
    // This class *MUST* be internal for security purposes
    internal static class SafeNativeMethods
    {
        [DllImport(ExternDll.Kernel32, ExactSpelling = true)]
        public static extern UInt32 GetTickCount();
        [DllImport(ExternDll.User32)]
        internal static extern int GetSysColor(int nIndex);
        [DllImport(ExternDll.User32, SetLastError = true)]
        public static extern bool IntersectRect (ref NativeMethods.Win32Rect rcDest, ref NativeMethods.Win32Rect rc1, ref NativeMethods.Win32Rect rc2);
        [DllImport(ExternDll.User32, ExactSpelling = true)]
        internal static extern bool IsWindowEnabled(IntPtr hWnd);
        [DllImport(ExternDll.User32, ExactSpelling = true)]
        internal static extern bool IsWindowVisible(IntPtr hWnd);
        [DllImport(ExternDll.User32, CharSet = CharSet.Unicode)]
        public static extern int MapVirtualKey(int nVirtKey, int nMapType);
        [DllImport(ExternDll.User32, CharSet = CharSet.Unicode, SetLastError = true)]
        internal static extern int RegisterWindowMessage(string msg);
        [DllImport(ExternDll.User32, SetLastError = true)]
        internal static extern bool UnionRect (out NativeMethods.Win32Rect rcDst, ref NativeMethods.Win32Rect rc1, ref NativeMethods.Win32Rect rc2);
        [DllImport(ExternDll.User32)]
        internal static extern IntPtr GetShellWindow();
    }
}