#region Licence



#endregion

using System;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace WmcSoft.Windows.Forms
{
    public static class NativeMethods
    {
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        extern static IntPtr SendMessage(System.IntPtr hwnd, int msg, IntPtr wparam, IntPtr lparam);

        [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
        static extern bool IsWindowVisible(IntPtr hWnd);

        [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
        static extern bool MessageBeep(int type);

        [DllImport("gdi32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
        public static extern IntPtr SelectObject(HandleRef hDC, HandleRef hObject);

        [DllImport("gdi32.dll", CharSet = CharSet.Auto, SetLastError = true, ExactSpelling = true)]
        public static extern bool DeleteObject(HandleRef hObject);

        [DllImport("USER32.DLL", EntryPoint = "VkKeyScan", CharSet = CharSet.Auto)]
        static extern short _VkKeyScan(char key);

        #region Message constants

        public const int WM_NULL = 0x0000;
        public const int WM_CREATE = 0x0001;
        public const int WM_DESTROY = 0x0002;
        public const int WM_MOVE = 0x0003;
        public const int WM_SIZE = 0x0005;
        public const int WM_ACTIVATE = 0x0006;
        public const int WM_SETFOCUS = 0x0007;
        public const int WM_KILLFOCUS = 0x0008;
        public const int WM_ENABLE = 0x000A;
        public const int WM_SETREDRAW = 0x000B;
        public const int WM_SETTEXT = 0x000C;
        public const int WM_GETTEXT = 0x000D;
        public const int WM_GETTEXTLENGTH = 0x000E;
        public const int WM_PAINT = 0x000F;
        public const int WM_CLOSE = 0x0010;
        public const int WM_QUERYENDSESSION = 0x0011;
        public const int WM_QUIT = 0x0012;
        public const int WM_QUERYOPEN = 0x0013;
        public const int WM_ERASEBKGND = 0x0014;
        public const int WM_SYSCOLORCHANGE = 0x0015;
        public const int WM_ENDSESSION = 0x0016;
        public const int WM_SHOWWINDOW = 0x0018;
        public const int WM_CTLCOLOR = 0x0019;
        public const int WM_WININICHANGE = 0x001A;
        public const int WM_SETTINGCHANGE = 0x001A;
        public const int WM_DEVMODECHANGE = 0x001B;
        public const int WM_ACTIVATEAPP = 0x001C;
        public const int WM_FONTCHANGE = 0x001D;
        public const int WM_TIMECHANGE = 0x001E;
        public const int WM_CANCELMODE = 0x001F;
        public const int WM_SETCURSOR = 0x0020;
        public const int WM_MOUSEACTIVATE = 0x0021;
        public const int WM_CHILDACTIVATE = 0x0022;
        public const int WM_QUEUESYNC = 0x0023;
        public const int WM_GETMINMAXINFO = 0x0024;
        public const int WM_PAINTICON = 0x0026;
        public const int WM_ICONERASEBKGND = 0x0027;
        public const int WM_NEXTDLGCTL = 0x0028;
        public const int WM_SPOOLERSTATUS = 0x002A;
        public const int WM_DRAWITEM = 0x002B;
        public const int WM_MEASUREITEM = 0x002C;
        public const int WM_DELETEITEM = 0x002D;
        public const int WM_VKEYTOITEM = 0x002E;
        public const int WM_CHARTOITEM = 0x002F;
        public const int WM_SETFONT = 0x0030;
        public const int WM_GETFONT = 0x0031;
        public const int WM_SETHOTKEY = 0x0032;
        public const int WM_GETHOTKEY = 0x0033;
        public const int WM_QUERYDRAGICON = 0x0037;
        public const int WM_COMPAREITEM = 0x0039;
        public const int WM_GETOBJECT = 0x003D;
        public const int WM_COMPACTING = 0x0041;
        public const int WM_COMMNOTIFY = 0x0044;
        public const int WM_WINDOWPOSCHANGING = 0x0046;
        public const int WM_WINDOWPOSCHANGED = 0x0047;
        public const int WM_POWER = 0x0048;
        public const int WM_COPYDATA = 0x004A;
        public const int WM_CANCELJOURNAL = 0x004B;
        public const int WM_NOTIFY = 0x004E;
        public const int WM_INPUTLANGCHANGEREQUEST = 0x0050;
        public const int WM_INPUTLANGCHANGE = 0x0051;
        public const int WM_TCARD = 0x0052;
        public const int WM_HELP = 0x0053;
        public const int WM_USERCHANGED = 0x0054;
        public const int WM_NOTIFYFORMAT = 0x0055;
        public const int WM_CONTEXTMENU = 0x007B;
        public const int WM_STYLECHANGING = 0x007C;
        public const int WM_STYLECHANGED = 0x007D;
        public const int WM_DISPLAYCHANGE = 0x007E;
        public const int WM_GETICON = 0x007F;
        public const int WM_SETICON = 0x0080;
        public const int WM_NCCREATE = 0x0081;
        public const int WM_NCDESTROY = 0x0082;
        public const int WM_NCCALCSIZE = 0x0083;
        public const int WM_NCHITTEST = 0x0084;
        public const int WM_NCPAINT = 0x0085;
        public const int WM_NCACTIVATE = 0x0086;
        public const int WM_GETDLGCODE = 0x0087;
        public const int WM_SYNCPAINT = 0x0088;
        public const int WM_NCMOUSEMOVE = 0x00A0;
        public const int WM_NCLBUTTONDOWN = 0x00A1;
        public const int WM_NCLBUTTONUP = 0x00A2;
        public const int WM_NCLBUTTONDBLCLK = 0x00A3;
        public const int WM_NCRBUTTONDOWN = 0x00A4;
        public const int WM_NCRBUTTONUP = 0x00A5;
        public const int WM_NCRBUTTONDBLCLK = 0x00A6;
        public const int WM_NCMBUTTONDOWN = 0x00A7;
        public const int WM_NCMBUTTONUP = 0x00A8;
        public const int WM_NCMBUTTONDBLCLK = 0x00A9;
        public const int WM_KEYDOWN = 0x0100;
        public const int WM_KEYUP = 0x0101;
        public const int WM_CHAR = 0x0102;
        public const int WM_DEADCHAR = 0x0103;
        public const int WM_SYSKEYDOWN = 0x0104;
        public const int WM_SYSKEYUP = 0x0105;
        public const int WM_SYSCHAR = 0x0106;
        public const int WM_SYSDEADCHAR = 0x0107;
        public const int WM_KEYLAST = 0x0108;
        public const int WM_IME_STARTCOMPOSITION = 0x010D;
        public const int WM_IME_ENDCOMPOSITION = 0x010E;
        public const int WM_IME_COMPOSITION = 0x010F;
        public const int WM_IME_KEYLAST = 0x010F;
        public const int WM_INITDIALOG = 0x0110;
        public const int WM_COMMAND = 0x0111;
        public const int WM_SYSCOMMAND = 0x0112;
        public const int WM_TIMER = 0x0113;
        public const int WM_HSCROLL = 0x0114;
        public const int WM_VSCROLL = 0x0115;
        public const int WM_INITMENU = 0x0116;
        public const int WM_INITMENUPOPUP = 0x0117;
        public const int WM_MENUSELECT = 0x011F;
        public const int WM_MENUCHAR = 0x0120;
        public const int WM_ENTERIDLE = 0x0121;
        public const int WM_MENURBUTTONUP = 0x0122;
        public const int WM_MENUDRAG = 0x0123;
        public const int WM_MENUGETOBJECT = 0x0124;
        public const int WM_UNINITMENUPOPUP = 0x0125;
        public const int WM_MENUCOMMAND = 0x0126;
        public const int WM_CTLCOLORMSGBOX = 0x0132;
        public const int WM_CTLCOLOREDIT = 0x0133;
        public const int WM_CTLCOLORLISTBOX = 0x0134;
        public const int WM_CTLCOLORBTN = 0x0135;
        public const int WM_CTLCOLORDLG = 0x0136;
        public const int WM_CTLCOLORSCROLLBAR = 0x0137;
        public const int WM_CTLCOLORSTATIC = 0x0138;
        public const int WM_MOUSEMOVE = 0x0200;
        public const int WM_LBUTTONDOWN = 0x0201;
        public const int WM_LBUTTONUP = 0x0202;
        public const int WM_LBUTTONDBLCLK = 0x0203;
        public const int WM_RBUTTONDOWN = 0x0204;
        public const int WM_RBUTTONUP = 0x0205;
        public const int WM_RBUTTONDBLCLK = 0x0206;
        public const int WM_MBUTTONDOWN = 0x0207;
        public const int WM_MBUTTONUP = 0x0208;
        public const int WM_MBUTTONDBLCLK = 0x0209;
        public const int WM_MOUSEWHEEL = 0x020A;
        public const int WM_PARENTNOTIFY = 0x0210;
        public const int WM_ENTERMENULOOP = 0x0211;
        public const int WM_EXITMENULOOP = 0x0212;
        public const int WM_NEXTMENU = 0x0213;
        public const int WM_SIZING = 0x0214;
        public const int WM_CAPTURECHANGED = 0x0215;
        public const int WM_MOVING = 0x0216;
        public const int WM_DEVICECHANGE = 0x0219;
        public const int WM_MDICREATE = 0x0220;
        public const int WM_MDIDESTROY = 0x0221;
        public const int WM_MDIACTIVATE = 0x0222;
        public const int WM_MDIRESTORE = 0x0223;
        public const int WM_MDINEXT = 0x0224;
        public const int WM_MDIMAXIMIZE = 0x0225;
        public const int WM_MDITILE = 0x0226;
        public const int WM_MDICASCADE = 0x0227;
        public const int WM_MDIICONARRANGE = 0x0228;
        public const int WM_MDIGETACTIVE = 0x0229;
        public const int WM_MDISETMENU = 0x0230;
        public const int WM_ENTERSIZEMOVE = 0x0231;
        public const int WM_EXITSIZEMOVE = 0x0232;
        public const int WM_DROPFILES = 0x0233;
        public const int WM_MDIREFRESHMENU = 0x0234;
        public const int WM_IME_SETCONTEXT = 0x0281;
        public const int WM_IME_NOTIFY = 0x0282;
        public const int WM_IME_CONTROL = 0x0283;
        public const int WM_IME_COMPOSITIONFULL = 0x0284;
        public const int WM_IME_SELECT = 0x0285;
        public const int WM_IME_CHAR = 0x0286;
        public const int WM_IME_REQUEST = 0x0288;
        public const int WM_IME_KEYDOWN = 0x0290;
        public const int WM_IME_KEYUP = 0x0291;
        public const int WM_MOUSEHOVER = 0x02A1;
        public const int WM_MOUSELEAVE = 0x02A3;
        public const int WM_CUT = 0x0300;
        public const int WM_COPY = 0x0301;
        public const int WM_PASTE = 0x0302;
        public const int WM_CLEAR = 0x0303;
        public const int WM_UNDO = 0x0304;
        public const int WM_RENDERFORMAT = 0x0305;
        public const int WM_RENDERALLFORMATS = 0x0306;
        public const int WM_DESTROYCLIPBOARD = 0x0307;
        public const int WM_DRAWCLIPBOARD = 0x0308;
        public const int WM_PAINTCLIPBOARD = 0x0309;
        public const int WM_VSCROLLCLIPBOARD = 0x030A;
        public const int WM_SIZECLIPBOARD = 0x030B;
        public const int WM_ASKCBFORMATNAME = 0x030C;
        public const int WM_CHANGECBCHAIN = 0x030D;
        public const int WM_HSCROLLCLIPBOARD = 0x030E;
        public const int WM_QUERYNEWPALETTE = 0x030F;
        public const int WM_PALETTEISCHANGING = 0x0310;
        public const int WM_PALETTECHANGED = 0x0311;
        public const int WM_HOTKEY = 0x0312;
        public const int WM_PRINT = 0x0317;
        public const int WM_PRINTCLIENT = 0x0318;
        public const int WM_HANDHELDFIRST = 0x0358;
        public const int WM_HANDHELDLAST = 0x035F;
        public const int WM_AFXFIRST = 0x0360;
        public const int WM_AFXLAST = 0x037F;
        public const int WM_PENWINFIRST = 0x0380;
        public const int WM_PENWINLAST = 0x038F;
        public const int WM_APP = 0x8000;
        public const int WM_USER = 0x0400;
        public const int WM_REFLECT = WM_USER + 0x1c00;

        #endregion

        #region MouseActivate types

        public const uint MA_ACTIVATE = 1;
        public const uint MA_ACTIVATEANDEAT = 2;
        public const uint MA_NOACTIVATE = 3;
        public const uint MA_NOACTIVATEANDEAT = 4;

        #endregion

        #region Window style

        public const uint WS_OVERLAPPED = 0x00000000;
        public const uint WS_POPUP = 0x80000000;
        public const uint WS_CHILD = 0x40000000;
        public const uint WS_MINIMIZE = 0x20000000;
        public const uint WS_VISIBLE = 0x10000000;
        public const uint WS_DISABLED = 0x08000000;
        public const uint WS_CLIPSIBLINGS = 0x04000000;
        public const uint WS_CLIPCHILDREN = 0x02000000;
        public const uint WS_MAXIMIZE = 0x01000000;
        public const uint WS_CAPTION = 0x00C00000;
        public const uint WS_BORDER = 0x00800000;
        public const uint WS_DLGFRAME = 0x00400000;
        public const uint WS_VSCROLL = 0x00200000;
        public const uint WS_HSCROLL = 0x00100000;
        public const uint WS_SYSMENU = 0x00080000;
        public const uint WS_THICKFRAME = 0x00040000;
        public const uint WS_GROUP = 0x00020000;
        public const uint WS_TABSTOP = 0x00010000;

        public const uint WS_MINIMIZEBOX = 0x00020000;
        public const uint WS_MAXIMIZEBOX = 0x00010000;

        public const uint WS_TILED = WS_OVERLAPPED;
        public const uint WS_ICONIC = WS_MINIMIZE;
        public const uint WS_SIZEBOX = WS_THICKFRAME;
        public const uint WS_TILEDWINDOW = WS_OVERLAPPEDWINDOW;

        public const uint WS_OVERLAPPEDWINDOW = (WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX);
        public const uint WS_POPUPWINDOW = (WS_POPUP | WS_BORDER | WS_SYSMENU);
        public const uint WS_CHILDWINDOW = (WS_CHILD);

        public const uint WS_EX_DLGMODALFRAME = 0x00000001;
        public const uint WS_EX_NOPARENTNOTIFY = 0x00000004;
        public const uint WS_EX_TOPMOST = 0x00000008;
        public const uint WS_EX_ACCEPTFILES = 0x00000010;
        public const uint WS_EX_TRANSPARENT = 0x00000020;

        public const uint WS_EX_MDICHILD = 0x00000040;
        public const uint WS_EX_TOOLWINDOW = 0x00000080;
        public const uint WS_EX_WINDOWEDGE = 0x00000100;
        public const uint WS_EX_CLIENTEDGE = 0x00000200;
        public const uint WS_EX_CONTEXTHELP = 0x00000400;

        public const uint WS_EX_RIGHT = 0x00001000;
        public const uint WS_EX_LEFT = 0x00000000;
        public const uint WS_EX_RTLREADING = 0x00002000;
        public const uint WS_EX_LTRREADING = 0x00000000;
        public const uint WS_EX_LEFTSCROLLBAR = 0x00004000;
        public const uint WS_EX_RIGHTSCROLLBAR = 0x00000000;

        public const uint WS_EX_CONTROLPARENT = 0x00010000;
        public const uint WS_EX_STATICEDGE = 0x00020000;
        public const uint WS_EX_APPWINDOW = 0x00040000;

        public const uint WS_EX_OVERLAPPEDWINDOW = (WS_EX_WINDOWEDGE | WS_EX_CLIENTEDGE);
        public const uint WS_EX_PALETTEWINDOW = (WS_EX_WINDOWEDGE | WS_EX_TOOLWINDOW | WS_EX_TOPMOST);

        public const uint WS_EX_LAYERED = 0x00080000;

        public const uint WS_EX_NOINHERITLAYOUT = 0x00100000; // Disable inheritence of mirroring by children
        public const uint WS_EX_LAYOUTRTL = 0x00400000; // Right to left mirroring
        public const uint WS_EX_COMPOSITED = 0x02000000;
        public const uint WS_EX_NOACTIVATE = 0x08000000;

        #endregion

        internal const uint HTVSCROLL = 0x7;

        public static void SendMessage(this Control self, ref Message message) {
            message.Result = SendMessage(self.Handle, message.Msg, message.WParam, message.LParam);
        }

        public static bool IsWindowVisible(this Control self) {
            return IsWindowVisible(self);
        }

        public static Keys VkKeyScan(char key) {
            return (Keys)_VkKeyScan(key);
        }
    }
}
