/// <summary>
/// Instatiates a new Hotkey which can be registered with the <c>HotKeyManager</c> class. See <see cref="HotkeyManager.AddHotkey(Hotkey)"/>
/// </summary>
/// <param name="key">A virtual key from <see cref="VirtualKeyCodes.VirtualKeys"/></param>
/// <param name="modifiers">Modifierkeys needed to trigger hotkey. Bitwise or from <see cref="KeyModifiers"/></param>
/// <param name="action">The callback which is executed when the hotkey is pressed</param>
public Hotkey(VirtualKeyCodes.VirtualKeys key, KeyModifiers modifiers, Action action)
{
HotkeyId = GetHashCode();
Key = KeyInterop.KeyFromVirtualKey((int)key);
VirtualKey = (int)key;
Modifiers = modifiers;
Action = action;
}
/// <summary>
/// Helper method for creating a keyup keybdinput
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
private static WinApi.KEYBDINPUT CreateKeyUp(VirtualKeyCodes.VirtualKeys key)
{
return(new WinApi.KEYBDINPUT()
{
dwExtraInfo = IntPtr.Zero,
dwFlags = (int)(WinApi.DWFLAGS.KEYEVENTF_KEYUP | WinApi.DWFLAGS.KEYEVENTF_SCANCODE),
wScan = (ushort)WinApi.MapVirtualKey((uint)key, 0),
wVk = (ushort)key
});
}
/// <summary>
/// Releases a held key
/// </summary>
/// <param name="key">The key to be released</param>
public static void SendKeyUp(VirtualKeyCodes.VirtualKeys key)
{
WinApi.INPUT input = new WinApi.INPUT();
input.input = new WinApi.COMBINEDINPUT()
{
keyboardInput = CreateKeyUp(key)
};
input.type = 1;
WinApi.SendInput(1, new WinApi.INPUT[] { input }, Marshal.SizeOf(typeof(WinApi.INPUT)));
}
/// <summary>
/// Emulates a single keypress
/// </summary>
/// <param name="key">A <see cref="VirtualKeyCodes.VirtualKeys"/> key</param>
public static void SendVirtualKeyCode(VirtualKeyCodes.VirtualKeys key)
{
SendVirtualKeyCode(new VirtualKeyCodes.VirtualKeys[] { key });
}
