Gio.File::open_readwrite

function vfunc_open_readwrite(cancellable: Gio.Cancellable): Gio.FileIOStream {
}
  

Opens an existing file for reading and writing. The result is a Gio.FileIOStream that can be used to read and write the contents of the file.

If cancellable is not null, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error Gio.IOErrorEnum.cancelled will be returned.

If the file does not exist, the Gio.IOErrorEnum.not_found error will be returned. If the file is a directory, the Gio.IOErrorEnum.is_directory error will be returned. Other errors are possible too, and depend on what kind of filesystem the file is on. Note that in many non-local file cases read and write streams are not supported, so make sure you really need to do read and write streaming, rather than just opening for reading or writing.

Since 2.22