Marshmellows.cs

// Invoked by NatCorder once recording is finished
void OnReplay (string path) {
    // Get the video thumbnail
    Sharing.GetThumbnail(path, OnThumbnail, 5f); // Get the thumbnail after 5 seconds of video
    // Save the path to the replay so we can use it in `OnShare`
    this.pathToReplay = path;
}

// Invoked by NatCorder once thumbnail has been loaded
void OnThumbnail (Texture2D thumbnail) {
    // Do stuff with the thumbnail
    // ...
}

// Invoked by UI when user clicks share button
void OnShare () {
    // Share the replay using the native sharing UI
    Sharing.Share(this.pathToReplay);
}