using System;
using System.Runtime.InteropServices;

namespace MissionPlanner
{
    internal static class NativeMethods
    {
        // used to hide/show console window
        [DllImport("user32.dll")]
        public static extern int FindWindow(string szClass, string szTitle);

        [DllImport("user32.dll")]
        public static extern int ShowWindow(int Handle, int showState);

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        internal static extern IntPtr RegisterDeviceNotification
        (IntPtr hRecipient,
            IntPtr NotificationFilter,
            Int32 Flags);

        // Import SetThreadExecutionState Win32 API and necessary flags

        [DllImport("kernel32.dll")]
        public static extern uint SetThreadExecutionState(uint esFlags);

        public const uint ES_CONTINUOUS = 0x80000000;
        public const uint ES_SYSTEM_REQUIRED = 0x00000001;

        static public int SW_SHOWNORMAL = 1;
        static public int SW_HIDE = 0;

        [DllImport("kernel32.dll", SetLastError = true)]
        public static extern IntPtr LoadLibraryEx(string lpFileName, IntPtr hReservedNull, LoadLibraryFlags dwFlags);

        [System.Flags]
        public enum LoadLibraryFlags : uint
        {
            DONT_RESOLVE_DLL_REFERENCES = 0x00000001,
            LOAD_IGNORE_CODE_AUTHZ_LEVEL = 0x00000010,
            LOAD_LIBRARY_AS_DATAFILE = 0x00000002,
            LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE = 0x00000040,
            LOAD_LIBRARY_AS_IMAGE_RESOURCE = 0x00000020,
            LOAD_LIBRARY_SEARCH_APPLICATION_DIR = 0x00000200,
            LOAD_LIBRARY_SEARCH_DEFAULT_DIRS = 0x00001000,
            LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR = 0x00000100,
            LOAD_LIBRARY_SEARCH_SYSTEM32 = 0x00000800,
            LOAD_LIBRARY_SEARCH_USER_DIRS = 0x00000400,
            LOAD_WITH_ALTERED_SEARCH_PATH = 0x00000008
        }
    }
}