Asynchronous backward search. See the GAsyncResult documentation to know
how to use this function.
If the operation is cancelled, the callback will only be called if
cancellable was not NULL. gtk_source_search_context_backward_async() takes
ownership of cancellable, so you can unref it after calling this function.
Asynchronous backward search. See the GAsyncResult documentation to know how to use this function. If the operation is cancelled, the callback will only be called if cancellable was not NULL. gtk_source_search_context_backward_async() takes ownership of cancellable, so you can unref it after calling this function.