void MyKeyboardEventHandler::handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa) { if (ea.getEventType() == osgGA::GUIEventAdapter::KEYDOWN) { int key = ea.getKey(); // handle the key event } }
void MyCameraManipulator::handleKeyDown(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa) { switch (ea.getKey()) { case osgGA::GUIEventAdapter::KEY_Left: // move camera left break; case osgGA::GUIEventAdapter::KEY_Right: // move camera right break; case osgGA::GUIEventAdapter::KEY_Up: // move camera up break; case osgGA::GUIEventAdapter::KEY_Down: // move camera down break; default: break; } }In this example, a custom camera manipulator is defined with a handleKeyDown method. Inside the method, a switch statement is used to handle the specific key pressed. Depending on the key pressed, the camera is moved in a specific direction. Overall, the getKey method in the osgGA package library provides a way to handle keyboard events in C++ applications.