text: The QSqlDriverPlugin class provides an abstract base for custom QSqlDriver plugins. More...
  #include <QSqlDriverPlugin>
  This class is not part of the Qt GUI Framework Edition.
  Inherits QObject. functions keys() and create(), and exporting the class with the Q_EXPORT_PLUGIN2() macro. See the SQL plugins that come with Qt for example implementations (in the plugins/src/sqldrivers subdirectory of the source distribution).
  See also How to Create Qt Plugins.
  Constructs a SQL driver plugin and sets the parent to parent. This is invoked automatically by the Q_EXPORT_PLUGIN2(). Keys are case sensitive.
  See also keys().
  Returns the list of drivers (keys) this plugin supports.
  These keys are usually the class names of the custom drivers that are implemented in the plugin.
  See also create().