Reference for unit 'fpg_interface': Classes

`TfpgApplicationImpl`
`TfpgCanvasImpl`
`TfpgClipboardImpl`
`TfpgDragImpl`
`TfpgFileListImpl`
`TfpgFontResourceImpl`
`TfpgImageImpl`
`TfpgMimeDataImpl`
`TfpgSystemTrayHandler`
`TfpgTimerImpl`
`TfpgWindowImpl`		Maps to a backend specific base class