propagateValue

Gets the result of @task as a #GValue, and transfers ownership of that value to the caller. As with g_task_return_value(), this is a generic low-level method; g_task_propagate_pointer() and the like will usually be more useful for C code.

If the task resulted in an error, or was cancelled, then this will instead set @error and return false.

Since this method transfers ownership of the return value (or error) to the caller, you may only call it once.

Parameters