public delegate bool FileReadMoreCallback (string file_contents, int64 file_size)
When loading the partial contents of a file with load_partial_contents_async, it may become necessary to determine if any more data from the file should be loaded.
A FileReadMoreCallback function facilitates this by returning true if more data should be read, or false otherwise.
the data as currently read.
the size of the data currently read.
data passed to the callback.
true if more data should be read back. false otherwise.