The TWsRedrawEvent() is requested by RWsSession::RedrawReady() and, when a redraw is required, the request completes and the redraw event is available to the application through the RWsSession::GetRedraw() function. The redraw event contains the handle of the window that must be redrawn, and the bounding rectangle of its invalid region.
Variant: ScreenPlay and non-ScreenPlay. Target audience: Application developers.