/// <summary>
/// Register callbacks in order to handle VLC dialogs.
/// LibVLC 3.0.0 and later.
/// </summary>
/// <param name="error">Called when an error message needs to be displayed.</param>
/// <param name="login">Called when a login dialog needs to be displayed.
/// You can interact with this dialog by calling Dialog.PostLogin() to post an answer or Dialog.Dismiss() to cancel this dialog.</param>
/// <param name="question">Called when a question dialog needs to be displayed.
/// You can interact with this dialog by calling Dialog.PostLogin() to post an answer or Dialog.Dismiss() to cancel this dialog.</param>
/// <param name="displayProgress">Called when a progress dialog needs to be displayed.</param>
/// <param name="updateProgress">Called when a progress dialog needs to be updated.</param>
public void SetDialogHandlers(DisplayError error, DisplayLogin login, DisplayQuestion question,
DisplayProgress displayProgress, UpdateProgress updateProgress)
{
_error = error ?? throw new ArgumentNullException(nameof(error));
_login = login ?? throw new ArgumentNullException(nameof(login));
_question = question ?? throw new ArgumentNullException(nameof(question));
_displayProgress = displayProgress ?? throw new ArgumentNullException(nameof(displayProgress));
_updateProgress = updateProgress ?? throw new ArgumentNullException(nameof(updateProgress));
_dialogCbs = new DialogCallbacks(Error, Login, Question, DisplayProgress, Cancel, UpdateProgress);
Native.LibVLCDialogSetCallbacks(NativeReference, _dialogCbs, IntPtr.Zero);
}
internal static extern void LibVLCDialogSetCallbacks(IntPtr libVLC, DialogCallbacks callbacks, IntPtr data);