realize

Called by users to attach the media stream to a GdkSurface they manage.

The stream can then access the resources of @surface for its rendering purposes. In particular, media streams might want to create a GdkGLContext or sync to the GdkFrameClock.

Whoever calls this function is responsible for calling method@Gtk.MediaStream.unrealize before either the stream or @surface get destroyed.

Multiple calls to this function may happen from different users of the video, even with the same @surface. Each of these calls must be followed by its own call to method@Gtk.MediaStream.unrealize.

It is not required to call this function to make a media stream work.

Parameters