qt4-doc 4:4.8.5+git192-g085f851+dfsg-2ubuntu3 (i386 binary) in ubuntu trusty

 Qt is a cross-platform C++ application framework. Qt's primary feature
 is its rich set of widgets that provide standard GUI functionality.
 .
 This package contains the complete Qt 4 API documentation (new help format).
 .
 The documentation is provided in the new help format and manpage format;
 the new help format version can be viewed in conjunction with the Qt Assistant
 found in the qt4-dev-tools package.