private void RegisterFocusStateChanged()
{
_focusStateChangedCallback = (CameraFocusState state, IntPtr userData) =>
{
FocusStateChanged?.Invoke(this, new CameraFocusStateChangedEventArgs(state));
};
CameraErrorFactory.ThrowIfError(Native.SetFocusStateChangedCallback(_handle, _focusStateChangedCallback, IntPtr.Zero),
"Setting focus changed callback failed");
}
private void RegisterFocusStateChanged()
{
_focusStateChangedCallback = (state, _) =>
{
FocusStateChanged?.Invoke(this, new CameraFocusStateChangedEventArgs(state));
};
Native.SetFocusStateChangedCallback(_handle, _focusStateChangedCallback).
ThrowIfFailed("Failed to set focus changed callback.");
}
/// <summary>
/// Initializes a new instance of the <see cref="AudioStreamPolicy"/> class with <see cref="AudioStreamType"/>.
/// </summary>
/// <remarks>
/// To apply the stream policy according to this stream information, the AudioStreamPolicy should
/// be passed to other APIs related to playback or recording. (For example., <see cref="T:Tizen.Multimedia.Player"/>,
/// <see cref="T:Tizen.Multimedia.WavPlayer"/> , etc.)
/// </remarks>
/// <param name="streamType">The type of the sound stream for which the policy needs to be created.</param>
/// <exception cref="ArgumentException"><paramref name="streamType"/> is invalid.</exception>
/// <since_tizen> 3 </since_tizen>
public AudioStreamPolicy(AudioStreamType streamType)
{
ValidationUtil.ValidateEnum(typeof(AudioStreamType), streamType, nameof(streamType));
_focusStateChangedCallback = (IntPtr streamInfo, AudioStreamFocusOptions focusMask,
AudioStreamFocusState state, AudioStreamFocusChangedReason reason, AudioStreamBehaviors behaviors,
string extraInfo, IntPtr _) =>
{
FocusStateChanged?.Invoke(this,
new AudioStreamPolicyFocusStateChangedEventArgs(focusMask, state, reason, behaviors, extraInfo));
};
Interop.AudioStreamPolicy.Create(streamType, _focusStateChangedCallback,
IntPtr.Zero, out _handle).ThrowIfError("Unable to create stream information");
Debug.Assert(_handle != null);
}