260 lines
9.6 KiB
C#
260 lines
9.6 KiB
C#
#region --- License ---
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/* Copyright (c) 2006, 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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using System;
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using System.Collections.Generic;
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using System.Text;
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using OpenTK.Input;
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using System.Diagnostics;
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using System.Runtime.InteropServices;
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using Microsoft.Win32;
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namespace OpenTK.Platform.Windows
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{
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/// <summary>
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/// Contains methods to register for and process mouse WM_INPUT messages.
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/// </summary>
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internal class WinRawMouse : IMouseDriver, IDisposable
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{
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private List<MouseDevice> mice = new List<MouseDevice>();
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private IntPtr window;
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#region --- Constructors ---
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internal WinRawMouse()
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: this(IntPtr.Zero)
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{
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}
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internal WinRawMouse(IntPtr windowHandle)
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{
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Debug.WriteLine("Initializing mouse driver (WinRawMouse).");
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Debug.Indent();
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this.window = windowHandle;
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RegisterDevices();
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Debug.Unindent();
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}
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#endregion
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#region --- IMouseDriver Members ---
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public IList<MouseDevice> Mouse
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{
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get { return mice; }
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}
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#region public int RegisterDevices()
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public int RegisterDevices()
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{
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int count = WinRawInput.DeviceCount;
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RawInputDeviceList[] ridl = new RawInputDeviceList[count];
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for (int i = 0; i < count; i++)
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ridl[i] = new RawInputDeviceList();
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Functions.GetRawInputDeviceList(ridl, ref count, API.RawInputDeviceListSize);
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// Discover mouse 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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Functions.GetRawInputDeviceInfo(ridl[i].Device, RawInputDeviceInfoEnum.DEVICENAME, IntPtr.Zero, ref size);
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IntPtr name_ptr = Marshal.AllocHGlobal((IntPtr)size);
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Functions.GetRawInputDeviceInfo(ridl[i].Device, 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 device, skip it.
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continue;
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}
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else if (ridl[i].Type == RawInputDeviceType.MOUSE || ridl[i].Type == RawInputDeviceType.HID)
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{
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// This is a mouse or a USB mouse device. In the latter case, discover if it really is a
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// mouse device by qeurying the registry.
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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 = (string)regkey.GetValue("DeviceDesc");
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deviceDesc = deviceDesc.Substring(deviceDesc.LastIndexOf(';') + 1);
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string deviceClass = (string)regkey.GetValue("Class");
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if (!String.IsNullOrEmpty(deviceClass) && deviceClass.ToLower().Equals("mouse"))
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{
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OpenTK.Input.MouseDevice mouse = new OpenTK.Input.MouseDevice();
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mouse.Description = deviceDesc;
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// Register the keyboard:
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RawInputDeviceInfo info = new RawInputDeviceInfo();
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int devInfoSize = API.RawInputDeviceInfoSize;
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Functions.GetRawInputDeviceInfo(ridl[i].Device, RawInputDeviceInfoEnum.DEVICEINFO,
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info, ref devInfoSize);
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mouse.NumberOfButtons = info.Device.Mouse.NumberOfButtons;
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mouse.NumberOfWheels = info.Device.Mouse.HasHorizontalWheel ? 1 : 0;
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mouse.DeviceID = ridl[i].Device;//(IntPtr)info.Device.Mouse.Id;
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this.RegisterRawDevice(mouse);
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mice.Add(mouse);
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}
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}
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}
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return count;
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}
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#endregion
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#endregion
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#region internal void RegisterRawDevice(OpenTK.Input.Mouse mouse)
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internal void RegisterRawDevice(OpenTK.Input.MouseDevice mouse)
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{
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RawInputDevice[] rid = new RawInputDevice[1];
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// Mouse is 1/2 (page/id). See http://www.microsoft.com/whdc/device/input/HID_HWID.mspx
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rid[0] = new RawInputDevice();
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rid[0].UsagePage = 1;
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rid[0].Usage = 2;
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rid[0].Flags = RawInputDeviceFlags.INPUTSINK;
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rid[0].Target = window;
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if (!Functions.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 mouse {0}", mouse.ToString());
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}
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}
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#endregion
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#region internal bool ProcessEvent(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 ProcessEvent(RawInput rin)
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{
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//MouseDevice mouse = mice.Find(delegate(MouseDevice m)
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//{
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// return m.DeviceID == rin.Header.Device;
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//});
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MouseDevice mouse;
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if (mice.Count > 0) mouse = mice[0];
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else return false;
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switch (rin.Header.Type)
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{
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case RawInputDeviceType.MOUSE:
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if ((rin.Data.Mouse.ButtonFlags & RawInputMouseState.LEFT_BUTTON_DOWN) != 0) mouse[MouseButton.Left] = true;
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if ((rin.Data.Mouse.ButtonFlags & RawInputMouseState.LEFT_BUTTON_UP) != 0) mouse[MouseButton.Left] = false;
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if ((rin.Data.Mouse.ButtonFlags & RawInputMouseState.RIGHT_BUTTON_DOWN) != 0) mouse[MouseButton.Right] = true;
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if ((rin.Data.Mouse.ButtonFlags & RawInputMouseState.RIGHT_BUTTON_UP) != 0) mouse[MouseButton.Right] = false;
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if ((rin.Data.Mouse.ButtonFlags & RawInputMouseState.MIDDLE_BUTTON_DOWN) != 0) mouse[MouseButton.Middle] = true;
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if ((rin.Data.Mouse.ButtonFlags & RawInputMouseState.MIDDLE_BUTTON_UP) != 0) mouse[MouseButton.Middle] = false;
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if ((rin.Data.Mouse.ButtonFlags & RawInputMouseState.BUTTON_4_DOWN) != 0) mouse[MouseButton.Button1] = true;
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if ((rin.Data.Mouse.ButtonFlags & RawInputMouseState.BUTTON_4_UP) != 0) mouse[MouseButton.Button1] = false;
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if ((rin.Data.Mouse.ButtonFlags & RawInputMouseState.BUTTON_5_DOWN) != 0) mouse[MouseButton.Button2] = true;
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if ((rin.Data.Mouse.ButtonFlags & RawInputMouseState.BUTTON_5_UP) != 0) mouse[MouseButton.Button2] = false;
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if (rin.Data.Mouse.ButtonFlags == RawInputMouseState.WHEEL)
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{
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mouse.Wheel += rin.Data.Mouse.ButtonData / 120;
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}
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if (rin.Data.Mouse.Flags == RawMouseFlags.MOUSE_MOVE_ABSOLUTE)
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{
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//mouse.XDelta = rin.Data.Mouse.LastX - mouse.X;
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//mouse.YDelta = rin.Data.Mouse.LastY - mouse.Y;
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mouse.X = rin.Data.Mouse.LastX;
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mouse.Y = rin.Data.Mouse.LastY;
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}
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else if (rin.Data.Mouse.Flags == RawMouseFlags.MOUSE_MOVE_RELATIVE)
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{
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//mouse.XDelta = rin.Data.Mouse.LastX;
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//mouse.YDelta = rin.Data.Mouse.LastY;
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//mouse.X += mouse.XDelta;
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//mouse.Y += mouse.YDelta;
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mouse.X += rin.Data.Mouse.LastX;
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mouse.Y += rin.Data.Mouse.LastY;
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}
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return false;
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default:
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throw new ApplicationException("WinRawMouse driver received keyboard data.");
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}
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}
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#endregion
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#region public void Poll()
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public void Poll()
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{
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}
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#endregion
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#region --- IDisposable Members ---
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private bool disposed;
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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private void Dispose(bool manual)
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{
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if (!disposed)
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{
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if (manual)
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{
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mice.Clear();
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}
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disposed = true;
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}
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}
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~WinRawMouse()
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{
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Dispose(false);
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}
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#endregion
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}
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}
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