Queries the stream information asynchronously.
When the operation is finished callback will be called.
You can then call FileInputStream.queryInfoFinish
to get the result of the operation.
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 G_IO_ERROR_CANCELLED will be set
Queries the stream information asynchronously. When the operation is finished callback will be called. You can then call FileInputStream.queryInfoFinish to get the result of the operation.
For the synchronous version of this function, see FileInputStream.queryInfo.
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 G_IO_ERROR_CANCELLED will be set