340 lines
14 KiB
C#
340 lines
14 KiB
C#
#region --- License ---
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/* Copyright (c) 2007 Stefanos Apostolopoulos
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* See license.txt for license info
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*/
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#endregion
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#region --- Using directives ---
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Runtime.InteropServices;
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using System.Diagnostics;
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using Microsoft.Win32;
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using OpenTK.Input;
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#endregion
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namespace OpenTK.Platform.Windows
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{
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internal class WinRawKeyboard : IKeyboardDriver
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{
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private List<Keyboard> keyboards = new List<Keyboard>();
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private IntPtr windowHandle;
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#region internal static Dictionary<API.VirtualKeys, Input.Key> KeyMap
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internal static Dictionary<API.VirtualKeys, Input.Key> KeyMap =
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new Dictionary<API.VirtualKeys, Input.Key>((int)API.VirtualKeys.Last);
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private static bool keyMapExists;
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/// <summary>
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/// Initializes the map between VirtualKeys and OpenTK.Key
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/// </summary>
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private static void InitKeyMap()
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{
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if (!keyMapExists)
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{
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try
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{
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KeyMap.Add(API.VirtualKeys.ESCAPE, Input.Key.Escape);
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// Function keys
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for (int i = 0; i < 24; i++)
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{
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KeyMap.Add((API.VirtualKeys)((int)API.VirtualKeys.F1 + i), Input.Key.F1 + i);
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}
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// Number keys (0-9)
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for (int i = 0; i <= 9; i++)
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{
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KeyMap.Add((API.VirtualKeys)(0x30 + i), Input.Key.Number0 + i);
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}
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// Letters (A-Z)
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for (int i = 0; i < 26; i++)
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{
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KeyMap.Add((API.VirtualKeys)(0x41 + i), Input.Key.A + i);
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}
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KeyMap.Add(API.VirtualKeys.TAB, Input.Key.Tab);
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KeyMap.Add(API.VirtualKeys.CAPITAL, Input.Key.CapsLock);
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KeyMap.Add(API.VirtualKeys.LCONTROL, Input.Key.ControlLeft);
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KeyMap.Add(API.VirtualKeys.LSHIFT, Input.Key.ShiftLeft);
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KeyMap.Add(API.VirtualKeys.LWIN, Input.Key.WinLeft);
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KeyMap.Add(API.VirtualKeys.LMENU, Input.Key.AltLeft);
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KeyMap.Add(API.VirtualKeys.SPACE, Input.Key.Space);
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KeyMap.Add(API.VirtualKeys.RMENU, Input.Key.AltRight);
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KeyMap.Add(API.VirtualKeys.RWIN, Input.Key.WinRight);
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KeyMap.Add(API.VirtualKeys.APPS, Input.Key.Menu);
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KeyMap.Add(API.VirtualKeys.RCONTROL, Input.Key.ControlRight);
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KeyMap.Add(API.VirtualKeys.RSHIFT, Input.Key.ShiftRight);
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KeyMap.Add(API.VirtualKeys.RETURN, Input.Key.Enter);
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KeyMap.Add(API.VirtualKeys.BACK, Input.Key.Backspace);
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KeyMap.Add(API.VirtualKeys.OEM_1, Input.Key.Semicolon); // Varies by keyboard, ;: on Win2K/US
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KeyMap.Add(API.VirtualKeys.OEM_2, Input.Key.Slash); // Varies by keyboard, /? on Win2K/US
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KeyMap.Add(API.VirtualKeys.OEM_3, Input.Key.Tilde); // Varies by keyboard, `~ on Win2K/US
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KeyMap.Add(API.VirtualKeys.OEM_4, Input.Key.LeftBracket); // Varies by keyboard, [{ on Win2K/US
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KeyMap.Add(API.VirtualKeys.OEM_5, Input.Key.BackSlash); // Varies by keyboard, \| on Win2K/US
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KeyMap.Add(API.VirtualKeys.OEM_6, Input.Key.RightBracket); // Varies by keyboard, ]} on Win2K/US
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KeyMap.Add(API.VirtualKeys.OEM_7, Input.Key.Quote); // Varies by keyboard, '" on Win2K/US
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KeyMap.Add(API.VirtualKeys.OEM_PLUS, Input.Key.Plus); // Invariant: +
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KeyMap.Add(API.VirtualKeys.OEM_COMMA, Input.Key.Comma); // Invariant: ,
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KeyMap.Add(API.VirtualKeys.OEM_MINUS, Input.Key.Minus); // Invariant: -
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KeyMap.Add(API.VirtualKeys.OEM_PERIOD, Input.Key.Period); // Invariant: .
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KeyMap.Add(API.VirtualKeys.HOME, Input.Key.Home);
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KeyMap.Add(API.VirtualKeys.END, Input.Key.End);
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KeyMap.Add(API.VirtualKeys.DELETE, Input.Key.Delete);
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KeyMap.Add(API.VirtualKeys.PRIOR, Input.Key.PageUp);
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KeyMap.Add(API.VirtualKeys.NEXT, Input.Key.PageDown);
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KeyMap.Add(API.VirtualKeys.PRINT, Input.Key.PrintScreen);
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KeyMap.Add(API.VirtualKeys.PAUSE, Input.Key.Pause);
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KeyMap.Add(API.VirtualKeys.NUMLOCK, Input.Key.NumLock);
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KeyMap.Add(API.VirtualKeys.SLEEP, Input.Key.Sleep);
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// Keypad
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for (int i = 0; i <= 9; i++)
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{
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KeyMap.Add((API.VirtualKeys)((int)API.VirtualKeys.NUMPAD0 + i), Input.Key.Keypad0 + i);
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}
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KeyMap.Add(API.VirtualKeys.DECIMAL, Input.Key.KeypadDecimal);
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KeyMap.Add(API.VirtualKeys.ADD, Input.Key.KeypadAdd);
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KeyMap.Add(API.VirtualKeys.SUBTRACT, Input.Key.KeypadSubtract);
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KeyMap.Add(API.VirtualKeys.DIVIDE, Input.Key.KeypadDivide);
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KeyMap.Add(API.VirtualKeys.MULTIPLY, Input.Key.KeypadMultiply);
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// Navigation
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KeyMap.Add(API.VirtualKeys.UP, Input.Key.Up);
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KeyMap.Add(API.VirtualKeys.DOWN, Input.Key.Down);
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KeyMap.Add(API.VirtualKeys.LEFT, Input.Key.Left);
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KeyMap.Add(API.VirtualKeys.RIGHT, Input.Key.Right);
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}
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catch (ArgumentException e)
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{
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Debug.Print("Exception while creating keymap: '{0}'.", e.ToString());
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System.Windows.Forms.MessageBox.Show(
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String.Format("Exception while creating keymap: '{0}'.", e.ToString()));
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}
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finally
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{
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keyMapExists = true;
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}
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}
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}
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#endregion
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#region --- Constructors ---
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internal WinRawKeyboard()
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: this(IntPtr.Zero)
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{
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}
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internal WinRawKeyboard(IntPtr windowHandle)
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{
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Debug.WriteLine("Initializing keyboard driver.");
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Debug.Indent();
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this.windowHandle = windowHandle;
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InitKeyMap();
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UpdateKeyboardList();
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Debug.Unindent();
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}
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#endregion
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#region internal static void UpdateKeyboardList()
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internal void UpdateKeyboardList()
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{
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int count = WinRawInput.DeviceCount;
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API.RawInputDeviceList[] ridl = new API.RawInputDeviceList[count];
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for (int i = 0; i < count; i++)
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ridl[i] = new API.RawInputDeviceList();
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API.GetRawInputDeviceList(ridl, ref count, API.RawInputDeviceListSize);
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// Discover keyboard devices:
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for (int i = 0; i < count; i++)
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{
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uint size = 0;
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API.GetRawInputDeviceInfo(ridl[i].Device, API.RawInputDeviceInfoEnum.DEVICENAME, IntPtr.Zero, ref size);
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IntPtr name_ptr = Marshal.AllocHGlobal((IntPtr)size);
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API.GetRawInputDeviceInfo(ridl[i].Device, API.RawInputDeviceInfoEnum.DEVICENAME, name_ptr, ref size);
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string name = Marshal.PtrToStringAnsi(name_ptr);
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Marshal.FreeHGlobal(name_ptr);
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if (name.ToLower().Contains("root"))
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{
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// This is a terminal services devices, skip it.
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continue;
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}
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else if (
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ridl[i].Type == API.RawInputDeviceType.KEYBOARD ||
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ridl[i].Type == API.RawInputDeviceType.HID)
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{
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//It's a keyboard – or a USB device that could be a keyboard
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// remove the \??\
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name = name.Substring(4);
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string[] split = name.Split('#');
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string id_01 = split[0]; // ACPI (Class code)
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string id_02 = split[1]; // PNP0303 (SubClass code)
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string id_03 = split[2]; // 3&13c0b0c5&0 (Protocol code)
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// The final part is the class GUID and is not needed here
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string findme = string.Format(
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@"System\CurrentControlSet\Enum\{0}\{1}\{2}",
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id_01, id_02, id_03);
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RegistryKey regkey = Registry.LocalMachine.OpenSubKey(findme);
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string deviceDesc =
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(string)regkey.GetValue("DeviceDesc");
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string deviceClass =
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(string)regkey.GetValue("Class");
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if (!String.IsNullOrEmpty(deviceClass) && deviceClass.ToLower().Equals("keyboard"))
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{
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Keyboard kb = new Keyboard();
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kb.Description = deviceDesc;
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// Register the keyboard:
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API.RawInputDeviceInfo info = new API.RawInputDeviceInfo();
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int devInfoSize = API.RawInputDeviceInfoSize;
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API.GetRawInputDeviceInfo(ridl[i].Device, API.RawInputDeviceInfoEnum.DEVICEINFO,
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info, ref devInfoSize);
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kb.NumberOfLeds = info.Device.Keyboard.NumberOfIndicators;
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kb.NumberOfFunctionKeys = info.Device.Keyboard.NumberOfFunctionKeys;
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kb.NumberOfKeys = info.Device.Keyboard.NumberOfKeysTotal;
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kb.DeviceID = (info.Device.Keyboard.Type << 32) + info.Device.Keyboard.SubType;
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if (!keyboards.Contains(kb))
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{
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this.RegisterKeyboardDevice(kb);
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keyboards.Add(kb);
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}
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}
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}
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}
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}
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#endregion
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#region internal void RegisterKeyboardDevice(Keyboard kb)
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internal void RegisterKeyboardDevice(Keyboard kb)
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{
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API.RawInputDevice[] rid = new API.RawInputDevice[1];
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// Keyboard is 1/6 (page/id). See http://www.microsoft.com/whdc/device/input/HID_HWID.mspx
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rid[0] = new API.RawInputDevice();
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rid[0].UsagePage = 1;
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rid[0].Usage = 6;
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rid[0].Flags = API.RawInputDeviceFlags.INPUTSINK;
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rid[0].Target = windowHandle;
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if (!API.RegisterRawInputDevices(rid, 1, API.RawInputDeviceSize))
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{
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throw new ApplicationException(
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String.Format(
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"Raw input registration failed with error: {0}. Device: {1}",
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Marshal.GetLastWin32Error(),
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rid[0].ToString())
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);
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}
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else
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{
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Debug.Print("Registered keyboard {0}", kb.ToString());
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}
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}
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#endregion
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#region internal bool ProcessKeyboardEvent(API.RawInput rin)
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/// <summary>
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/// Processes raw input events.
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/// </summary>
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/// <param name="rin"></param>
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/// <returns></returns>
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internal bool ProcessKeyboardEvent(API.RawInput rin)
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{
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//Keyboard key = keyboards[0];
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//rin.Header.Device;
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switch (rin.Header.Type)
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{
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case API.RawInputDeviceType.KEYBOARD:
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bool pressed =
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rin.Data.Keyboard.Message == API.Constants.WM_KEYDOWN ||
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rin.Data.Keyboard.Message == API.Constants.WM_SYSKEYDOWN;
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// Generic control, shift, alt keys may be sent instead of left/right.
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// It seems you have to explicitly register left/right events.
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switch (rin.Data.Keyboard.VKey)
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{
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case API.VirtualKeys.SHIFT:
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keyboards[0][Input.Key.ShiftLeft] = keyboards[0][Input.Key.ShiftRight] = pressed;
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return false;
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case API.VirtualKeys.CONTROL:
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keyboards[0][Input.Key.ControlLeft] = keyboards[0][Input.Key.ControlRight] = pressed;
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return false;
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case API.VirtualKeys.MENU:
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keyboards[0][Input.Key.AltLeft] = keyboards[0][Input.Key.AltRight] = pressed;
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return false;
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default:
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if (!WinRawKeyboard.KeyMap.ContainsKey(rin.Data.Keyboard.VKey))
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{
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Debug.Print("Virtual key {0} not mapped.", rin.Data.Keyboard.VKey);
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}
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else
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{
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keyboards[0][WinRawKeyboard.KeyMap[rin.Data.Keyboard.VKey]] = pressed;
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}
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break;
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}
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break;
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default:
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throw new ApplicationException("Windows raw keyboard driver received invalid data.");
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}
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return false;
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}
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#endregion
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#region --- IInputDevice Members ---
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public string Description
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{
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get { throw new Exception("The method or operation is not implemented."); }
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}
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public Input.InputDeviceType DeviceType
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{
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get { return Input.InputDeviceType.Keyboard; }
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}
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#endregion
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#region --- IKeyboardDriver Members ---
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public IList<Keyboard> Keyboard
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{
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get { return keyboards; }
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}
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#endregion
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}
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}
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