[Overview][Constants][Types][Classes][Procedures and functions][Variables] | Reference for unit 'Classes' (#fcl)

# Reference for unit 'Classes': Variables

`FindGlobalComponent` |  | Callback used when a component must be found.
`MainThreadID` |  | ID of main thread. Unused at this point.
`RegisterComponentsProc` |  | Callback procedure used when handling component registration.
`RegisterNoIconProc` |  | Callback procedure used when handling iconless component registration.