Write custom plugin in CDTStudio

Create a interface (pure virtual base class) based on QObject

  • Create a c++ class (PlugInterface), which contains a pure virtual function (interface).
  • Add the macro Q_DECLARE_INTERFACE at the end of the class file. The first parameter of the macro is the name of class PlugInterface. The second parameter is the description and version number.

Implement interface

  • Create a plugin class (PluginInstance)，which implement the interface in PlugInterface.
  • Add macro Q_OBJECT and Q_INTERFACES in header file.
  • At the end of the cpp file, add macro Q_EXPORT_PLUGIN2, whose first parameter is the name of plugin and the second one is the name of the class name of the plugin.

Invoke in main app.

  • Load plugins by QPluginLoader class.
  • Invoke functions in plugins.