private static ModifierKeys ConvertToModifierKey(bool ctrl, bool alt, bool shift, bool window) { var modifier = ModifierKeys.None; if (ctrl) { modifier |= ModifierKeys.Control; } if (alt) { modifier |= ModifierKeys.Alt; } if (shift) { modifier |= ModifierKeys.Shift; } if (window) { modifier |= ModifierKeys.Win; } return modifier; }