Index - R
| Radio | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| radio | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RadioButtonType | Graphics.UI.FLTK.LowLevel.Fl_Types, Graphics.UI.FLTK.LowLevel.Button, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RadioLightButton | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| radioLightButtonNew | Graphics.UI.FLTK.LowLevel.RadioLightButton, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| Range | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| range | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| readqueue | Graphics.UI.FLTK.LowLevel.FL | 
| ready | Graphics.UI.FLTK.LowLevel.FL | 
| Rectangle | |
| 1 (Type/Class) | Graphics.UI.FLTK.LowLevel.Fl_Types, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| 2 (Data Constructor) | Graphics.UI.FLTK.LowLevel.Fl_Types, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| redColor | Graphics.UI.FLTK.LowLevel.Fl_Enumerations | 
| RedisplayRange | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| redisplayRange | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| Redraw | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| redraw | |
| 1 (Function) | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| 2 (Function) | Graphics.UI.FLTK.LowLevel.FL | 
| RedrawLabel | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| redrawLabel | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RedrawOverlay | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| redrawOverlay | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| Ref | |
| 1 (Type/Class) | Graphics.UI.FLTK.LowLevel.Fl_Types, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| 2 (Data Constructor) | Graphics.UI.FLTK.LowLevel.Fl_Types, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| refOrError | Graphics.UI.FLTK.LowLevel.Utils | 
| Region | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| Release | Graphics.UI.FLTK.LowLevel.Fl_Enumerations | 
| release | Graphics.UI.FLTK.LowLevel.FL | 
| releaseWidgetPointer | Graphics.UI.FLTK.LowLevel.FL | 
| Remove | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| remove | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| removeCheck | Graphics.UI.FLTK.LowLevel.FL | 
| RemoveChild | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| removeChild | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| removeFd | Graphics.UI.FLTK.LowLevel.FL | 
| removeFdWhen | Graphics.UI.FLTK.LowLevel.FL | 
| removeFromColormap | Graphics.UI.FLTK.LowLevel.FL | 
| RemoveIcon | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| removeIcon | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| removeIdle | Graphics.UI.FLTK.LowLevel.FL | 
| RemoveIndex | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| removeIndex | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RemoveModifyCallback | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| removeModifyCallback | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RemovePredeleteCallback | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| removePredeleteCallback | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RemoveSecondarySelection | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| removeSecondarySelection | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RemoveSelection | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| removeSelection | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| removeTimeout | Graphics.UI.FLTK.LowLevel.FL | 
| RemoveWidget | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| removeWidget | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| Reparent | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| reparent | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RepeatButton | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| repeatButtonCustom | Graphics.UI.FLTK.LowLevel.RepeatButton, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| repeatButtonNew | Graphics.UI.FLTK.LowLevel.RepeatButton, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| repeatTimeout | Graphics.UI.FLTK.LowLevel.FL | 
| Replace | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| replace | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| ReplaceKeyBindings | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| replaceKeyBindings | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| ReplaceSecondarySelection | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| replaceSecondarySelection | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| ReplaceSelection | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| replaceSelection | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| Resize | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| resize | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| resizeCustom | Graphics.UI.FLTK.LowLevel.Widget, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| ResizeSuper | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| resizeSuper | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| ReturnButton | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| returnButtonCustom | Graphics.UI.FLTK.LowLevel.ReturnButton, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| returnButtonNew | Graphics.UI.FLTK.LowLevel.ReturnButton, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| Reversed | Graphics.UI.FLTK.LowLevel.Fl_Types, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RewindLines | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| rewindLines | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RFlatBox | Graphics.UI.FLTK.LowLevel.Fl_Enumerations | 
| RGB | Graphics.UI.FLTK.LowLevel.Fl_Enumerations | 
| rgb2Hsv | Graphics.UI.FLTK.LowLevel.ColorChooser, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| rgbColorWithGrayscale | Graphics.UI.FLTK.LowLevel.Fl_Enumerations | 
| rgbColorWithRgb | Graphics.UI.FLTK.LowLevel.Fl_Enumerations | 
| RGBImage | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| rgbImageNew | Graphics.UI.FLTK.LowLevel.RGBImage, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RgbMode | Graphics.UI.FLTK.LowLevel.Fl_Types, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| Roller | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| rollerCustom | Graphics.UI.FLTK.LowLevel.Roller, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| rollerNew | Graphics.UI.FLTK.LowLevel.Roller, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| Root | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| root | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RootLabel | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| rootLabel | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| Round | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| round | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RoundButton | Graphics.UI.FLTK.LowLevel.Hierarchy, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| roundButtonCustom | Graphics.UI.FLTK.LowLevel.RoundButton, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| roundButtonNew | Graphics.UI.FLTK.LowLevel.RoundButton, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RoundClock | Graphics.UI.FLTK.LowLevel.Clock, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RoundDownBox | Graphics.UI.FLTK.LowLevel.Fl_Enumerations | 
| RoundedBox | Graphics.UI.FLTK.LowLevel.Fl_Enumerations | 
| RoundedFrame | Graphics.UI.FLTK.LowLevel.Fl_Enumerations | 
| RoundUpBox | Graphics.UI.FLTK.LowLevel.Fl_Enumerations | 
| Row | |
| 1 (Type/Class) | Graphics.UI.FLTK.LowLevel.Table, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| 2 (Data Constructor) | Graphics.UI.FLTK.LowLevel.Table, Graphics.UI.FLTK.LowLevel.FLTKHS | 
| RshadowBox | Graphics.UI.FLTK.LowLevel.Fl_Enumerations | 
| run | Graphics.UI.FLTK.LowLevel.FL | 
| runOp | Graphics.UI.FLTK.LowLevel.Dispatch, Graphics.UI.FLTK.LowLevel.FLTKHS |