Encapsulates I/O asynchronicity. More... #include < qasyncio.h > . ... The Qt classes for asynchronous input/output provide a simple mechanism to allow large files or slow datasources to be processed without using large amounts of memory, or blocking the user interface. ... Derived classes should call this when they change from being unready to ready. ... This file is part of the Qt toolkit , copyright 1995-98 Troll Tech , all rights reserved. ... qasyncio.h: 1998/07/03 . ...