The system window manager event contains a pointer to system-specific information about unknown window manager events. If you enable this event using SDL_EventState() , it will be generated whenever unhandled events are received from the window manager. This can be used, for example, to implement cut-and-paste in your application.
TSDL_SysWMEvent = recordIf you want to obtain system-specific information about the window manager, you can fill the version member of a SDL_SysWMinfo structure (details can be found in SDL_syswm.h , which must be included) using the SDL_VERSION() macro found in SDL_version.h, and pass it to the function:
type_: UInt8;
msg: PSDL_SysWMmsg;
end;