internal static void Popup(AudioMixerController controller, GUIStyle style, params GUILayoutOption[] options)
{
GUIContent buttonContent = AudioMixerExposedParametersPopup.GetButtonContent(controller);
Rect rect = GUILayoutUtility.GetRect(buttonContent, style, options);
if (EditorGUI.DropdownButton(rect, buttonContent, FocusType.Passive, style))
{
PopupWindow.Show(rect, new AudioMixerExposedParametersPopup(controller), null, ShowMode.PopupMenuWithKeyboardFocus);
}
}