#region --- License ---
/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
* See license.txt for license info
*/
#endregion
#region --- Using directives ---
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using System.Diagnostics;
using System.Windows.Forms;
using OpenTK.Input;
#endregion
namespace OpenTK.Platform.Windows
{
internal class WinRawInput : NativeWindow, IInputDriver
{
///
/// Input event data.
///
private API.RawInput data = new API.RawInput();
///
/// The list of keyboards connected to this system.
///
//internal List keyboards = new List();
private WinRawKeyboard keyboardDriver;
internal WinRawInput(IntPtr parentHandle)
{
Debug.WriteLine("Initalizing raw input driver.");
Debug.Indent();
AssignHandle(parentHandle);
Debug.Print("Input window attached to parent {0}", this.Handle);
keyboardDriver = new WinRawKeyboard(this.Handle);
Debug.Unindent();
}
private static int deviceCount;
internal static int DeviceCount
{
get
{
API.GetRawInputDeviceList(null, ref deviceCount, API.RawInputDeviceListSize);
return deviceCount;
}
}
/*
///
/// Gets a value indicating whether the Device list has changed, for example
/// by removing or adding a device.
///
internal static bool DeviceListChanged
{
get
{
uint count = 0;
if (API.GetRawInputDeviceList(null, ref count, API.RawInputDeviceListSize) == 0)
{
if (deviceCount == count)
return true;
deviceCount = count;
return false;
}
else
{
throw new ApplicationException(String.Format(
"Could not retrieve the count of Keyboard devices. Windows error: {0}",
Marshal.GetLastWin32Error()));
}
}
}
*/
#region protected override void WndProc(ref Message msg)
int size = 0;
///
/// Processes the input Windows Message, routing the data to the correct Keyboard, Mouse or HID.
///
/// The WM_INPUT message, containing the data on the input event.
protected override void WndProc(ref Message msg)
{
switch (msg.Msg)
{
case API.Constants.WM_INPUT:
size = 0;
// Get the size of the input data
API.GetRawInputData(msg.LParam, API.GetRawInputDataEnum.INPUT,
IntPtr.Zero, ref size, API.RawInputHeaderSize);
//if (data == null || API.RawInputSize < size)
//{
// throw new ApplicationException("Critical error when processing raw windows input.");
//}
if (size == API.GetRawInputData(msg.LParam, API.GetRawInputDataEnum.INPUT,
data, ref size, API.RawInputHeaderSize))
{
switch (data.Header.Type)
{
case API.RawInputDeviceType.KEYBOARD:
keyboardDriver.ProcessKeyboardEvent(data);
break;
case API.RawInputDeviceType.MOUSE:
//throw new NotImplementedException();
break;
case API.RawInputDeviceType.HID:
//throw new NotImplementedException();
break;
}
}
else
{
throw new ApplicationException(String.Format(
"GetRawInputData returned invalid data. Windows error {0}. Please file a bug at http://opentk.sourceforge.net",
Marshal.GetLastWin32Error()));
}
break;
case API.Constants.WM_CLOSE:
case API.Constants.WM_DESTROY:
Debug.Print("Input window detached from parent {0}.", Handle);
ReleaseHandle();
break;
case API.Constants.WM_QUIT:
Debug.WriteLine("Input window quit.");
break;
}
base.WndProc(ref msg);
}
#endregion
#region --- IInputDriver Members ---
IList Input.IInputDriver.InputDevices
{
get { throw new Exception("The method or operation is not implemented."); }
}
public IList Keyboard
{
get { return keyboardDriver.Keyboard; }
}
public IList Mouse
{
get { throw new Exception("The method or operation is not implemented."); }
}
#endregion
#region IMouseDriver Members
IList IMouseDriver.Mouse
{
get { throw new Exception("The method or operation is not implemented."); }
}
#endregion
}
}