Component Visualizer & Actor Selection

For a editor VP solution see Debug Visualization

Component Visualizer

There is a struct called FComponentVisualizer that seems to be used to draw/debug whatever you want for a specific component class.

See FConstraintComponentVisualizer::DrawVisualization and FComponentVisualizersModule::StartupModule for an example.

See also zomg’s post on it.

About GUnrealEd in StartupModule

As I found here GUnrealEd is null in StartupModule if you are loading it to early. Load your module at PostEngineInit phase to correct that.

More details about it (with an example on Unity box collider 6 faces maker) here

Actor selection

Forum thread on it Notes:

• There is `Actor::IsSelectedInEditor
• There is USelection::SelectionChangedEvent and USelection::SelectObjectEvent