Loads the next @count bytes of the image. This will return %TRUE if the data
was loaded successful, and %FALSE if an error occurred. In the latter case,
the loader will be closed, and will not accept further writes. If %FALSE is
returned, @error will be set to an error from the #RsvgError domain. Errors
from #GIOErrorEnum are also possible.
Loads the next @count bytes of the image. This will return %TRUE if the data was loaded successful, and %FALSE if an error occurred. In the latter case, the loader will be closed, and will not accept further writes. If %FALSE is returned, @error will be set to an error from the #RsvgError domain. Errors from #GIOErrorEnum are also possible.