IMMNativeMethods.cs

#if WINDOWSDX || XNA
using System;
using System.Runtime.InteropServices;
using System.Text;

namespace MonoGame.IMEHelper
{
    internal static class IMM
    {
#region Constants

        public const int KeyDown = 0x0100, Char = 0x0102;

        public const int
            GCSCompReadStr = 0x0001,
            GCSCompReadAttr = 0x0002,
            GCSCompReadClause = 0x0004,
            GCSCompStr = 0x0008,
            GCSCompAttr = 0x0010,
            GCSCompClause = 0x0020,
            GCSCursorPos = 0x0080,
            GCSDeltaStart = 0x0100,
            GCSResultReadStr = 0x0200,
            GCSResultReadClause = 0x0400,
            GCSResultStr = 0x0800,
            GCSResultClause = 0x1000;

        public const int
            ImeStartCompostition = 0x010D,
            ImeEndComposition = 0x010E,
            ImeComposition = 0x010F,
            ImeKeyLast = 0x010F,
            ImeSetContext = 0x0281,
            ImeNotify = 0x0282,
            ImeControl = 0x0283,
            ImeCompositionFull = 0x0284,
            ImeSelect = 0x0285,
            ImeChar = 0x286,
            ImeRequest = 0x0288,
            ImeKeyDown = 0x0290,
            ImeKeyUp = 0x0291;

        public const int
            ImnCloseStatusWindow = 0x0001,
            ImnOpenStatusWindow = 0x0002,
            ImnChangeCandidate = 0x0003,
            ImnCloseCandidate = 0x0004,
            ImnOpenCandidate = 0x0005,
            ImnSetConversionMode = 0x0006,
            ImnSetSentenceMode = 0x0007,
            ImnSetOpenStatus = 0x0008,
            ImnSetCandidatePos = 0x0009,
            ImnSetCompositionFont = 0x000A,
            ImnSetCompositionWindow = 0x000B,
            ImnSetStatusWindowPos = 0x000C,
            ImnGuideLine = 0x000D,
            ImnPrivate = 0x000E;

        public const int InputLanguageChange = 0x0051;

#endregion

        [DllImport("imm32.dll", SetLastError = true)]
        public static extern IntPtr ImmAssociateContext(IntPtr hWnd, IntPtr hIMC);

        [DllImport("imm32.dll", SetLastError = true)]
        public static extern IntPtr ImmReleaseContext(IntPtr hWnd, IntPtr hIMC);

        [DllImport("imm32.dll", CharSet = CharSet.Unicode)]
        public static extern uint ImmGetCandidateList(IntPtr hIMC, uint deIndex, IntPtr candidateList, uint dwBufLen);

        [DllImport("imm32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
        public static extern int ImmGetCompositionString(IntPtr hIMC, int CompositionStringFlag, IntPtr buffer, int bufferLength);

        [DllImport("imm32.dll", SetLastError = true)]
        public static extern IntPtr ImmGetContext(IntPtr hWnd);

        [DllImport("imm32.dll", SetLastError = true)]
        public static extern bool ImmGetOpenStatus(IntPtr hIMC);

        [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Auto)]
        public static extern bool TranslateMessage(IntPtr message);

        [DllImport("user32.dll")]
        public static extern short VkKeyScanEx(char ch, IntPtr dwhkl);

        public const int CFS_CANDIDATEPOS = 64;

        [DllImport("imm32.dll", SetLastError = true)]
        public static extern bool ImmSetCandidateWindow(IntPtr hIMC, ref CandidateForm candidateForm);

        [DllImport("user32.dll", SetLastError = true)]
        public static extern bool CreateCaret(IntPtr hWnd, IntPtr hBitmap, int nWidth, int nHeight);

        [DllImport("user32.dll", SetLastError = true)]
        public static extern bool DestroyCaret();

        [DllImport("user32.dll", SetLastError = true)]
        public static extern bool SetCaretPos(int x, int y);

        [StructLayoutAttribute(LayoutKind.Sequential)]
        public struct CandidateList
        {
            public uint dwSize;
            public uint dwStyle;
            public uint dwCount;
            public uint dwSelection;
            public uint dwPageStart;
            public uint dwPageSize;
            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 1, ArraySubType = UnmanagedType.U4)]
            public uint[] dwOffset;
        }

        [StructLayoutAttribute(LayoutKind.Sequential)]
        public struct Point
        {
            public int X;
            public int Y;
            public Point(int x, int y)
            {
                X = x;
                Y = y;
            }
        }

        [StructLayoutAttribute(LayoutKind.Sequential)]
        public struct Rect
        {
            public int left;
            public int top;
            public int right;
            public int bottom;
        }

        [StructLayoutAttribute(LayoutKind.Sequential)]
        public struct CandidateForm
        {
            public uint dwIndex;
            public uint dwStyle;
            public Point ptCurrentPos;
            public Rect rcArea;


            public CandidateForm(Point pos)
            {
                this.dwIndex = 0;
                this.dwStyle = CFS_CANDIDATEPOS;
                this.ptCurrentPos = pos;
                this.rcArea = new Rect();
            }
        }
    }
}
#endif