/// <summary>
/// Determines whether a specified key is pressed.
/// </summary>
/// <param name="key"> The key. </param>
/// <returns>
/// true if the key is pressed, false otherwise.
/// </returns>
public static bool IsKeyPressed(SystemKeyboardKey key)
{
short result = SystemKeyboard.GetKeyState((int)key);
bool keyPressed;
switch ((result & 0x8000) >> 15)
{
default:
{
keyPressed = true;
break;
}
case 0:
{
keyPressed = false;
break;
}
case 1:
{
keyPressed = true;
break;
}
}
return(keyPressed);
}
/// <summary>
/// Determines whether a specified key is toggled on.
/// </summary>
/// <param name="key"> The key. </param>
/// <returns>
/// true if the key is toggled on, false otherwise.
/// </returns>
public static bool IsKeyToggledOn(SystemKeyboardKey key)
{
short result = SystemKeyboard.GetKeyState((int)key);
bool keyToggledOn;
switch (result & 0x0001)
{
default:
{
keyToggledOn = true;
break;
}
case 0:
{
keyToggledOn = false;
break;
}
case 1:
{
keyToggledOn = true;
break;
}
}
return(keyToggledOn);
}
/// <summary>
/// Determines whether a keystroke (multiple keys at the same time) is pressed.
/// </summary>
/// <param name="keys"> The keystroke. </param>
/// <returns>
/// true if all specified keys are pressed at the same time, false otherwise.
/// </returns>
/// <remarks>
/// <para>
/// true is returned if <paramref name="keys" /> is an empty sequence.
/// </para>
/// <para>
/// <paramref name="keys" /> is enumerated only once.
/// </para>
/// </remarks>
/// <exception cref="ArgumentNullException"> <paramref name="keys" /> is null. </exception>
public static bool IsKeystrokePressed(IEnumerable <SystemKeyboardKey> keys)
{
if (keys == null)
{
throw new ArgumentNullException(nameof(keys));
}
foreach (SystemKeyboardKey key in keys)
{
if (!SystemKeyboard.IsKeyPressed(key))
{
return(false);
}
}
return(true);
}
/// <summary> /// Maps characters to keyboard keys. /// </summary> /// <param name="characters"> The array of characters to map. </param> /// <returns> /// The list of mapped keys. /// An empty list is returned if no characters were provided or if no characters could be mapped. /// </returns> /// <remarks> /// <note type="note"> /// Not all characters can be mapped to keys. /// </note> /// </remarks> /// <exception cref="ArgumentNullException"> <paramref name="characters" /> is null. </exception> public static List <SystemKeyboardKey> MapCharactersToKey(params char[] characters) => SystemKeyboard.MapCharactersToKey((IEnumerable <char>)characters.ToArray());
/// <summary> /// Determines whether a keystroke (multiple keys at the same time) is toggled on. /// </summary> /// <param name="keys"> The keystroke. </param> /// <returns> /// true if all specified keys are toggled on at the same time, false otherwise. /// </returns> /// <remarks> /// <para> /// true is returned if <paramref name="keys" /> is an empty array. /// </para> /// </remarks> /// <exception cref="ArgumentNullException"> <paramref name="keys" /> is null. </exception> public static bool IsKeystrokeToggledOn(params SystemKeyboardKey[] keys) => SystemKeyboard.IsKeystrokeToggledOn((IEnumerable <SystemKeyboardKey>)keys);
/// <summary> /// Determines whether a keystroke (multiple keys at the same time) is pressed. /// </summary> /// <param name="keys"> The keystroke. </param> /// <returns> /// true if all specified keys are pressed at the same time, false otherwise. /// </returns> /// <remarks> /// <para> /// true is returned if <paramref name="keys" /> is an empty array. /// </para> /// </remarks> /// <exception cref="ArgumentNullException"> <paramref name="keys" /> is null. </exception> public static bool IsKeystrokePressed(params SystemKeyboardKey[] keys) => SystemKeyboard.IsKeystrokePressed((IEnumerable <SystemKeyboardKey>)keys);
