// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System.Collections;
using System.Windows;
using System.Security;
using MS.Internal;
using MS.Internal.PresentationCore; // SecurityHelper
using System.Windows.Media;
using MS.Win32; // VK translation.
using System;
using SR=MS.Internal.PresentationCore.SR;
namespace System.Windows.Input
{
/// <summary>
/// The Win32KeyboardDevice class implements the platform specific
/// KeyboardDevice features for the Win32 platform
/// </summary>
internal sealed class Win32KeyboardDevice : KeyboardDevice
{
/// <summary>
///
/// </summary>
/// <param name="inputManager">
/// </param>
internal Win32KeyboardDevice(InputManager inputManager)
: base(inputManager)
{
}
/// <summary>
/// Gets the current state of the specified key from the device from the underlying system
/// </summary>
/// <param name="key">
/// Key to get the state of
/// </param>
/// <returns>
/// The state of the specified key
/// </returns>
protected override KeyStates GetKeyStatesFromSystem(Key key)
{
KeyStates keyStates = KeyStates.None;
int virtualKeyCode = KeyInterop.VirtualKeyFromKey(key);
int nativeKeyState = UnsafeNativeMethods.GetKeyState(virtualKeyCode);
if ((nativeKeyState & 0x00008000) == 0x00008000)
keyStates |= KeyStates.Down;
if ((nativeKeyState & 0x00000001) == 0x00000001)
keyStates |= KeyStates.Toggled;
return keyStates;
}
}
}
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