Reports an error in an idle function. Similar to g_simple_async_report_error_in_idle(), but takes a GError rather than building a new one.
a GObject, or NULL. [allow-none]
a GAsyncReadyCallback. [scope async]
user data passed to callback. closure
the GError to report
See Implementation
Reports an error in an idle function. Similar to g_simple_async_report_error_in_idle(), but takes a GError rather than building a new one.