| Watch | Sifflet.UI.LittleGtk, Sifflet.UI |
| WEdge |
| 1 (Type/Class) | Sifflet.Data.WGraph |
| 2 (Data Constructor) | Sifflet.Data.WGraph |
| WFrame | Sifflet.Data.WGraph |
| WGraph | Sifflet.Data.WGraph |
| wgraphNew | Sifflet.Data.WGraph |
| whichFrame | Sifflet.UI.Canvas, Sifflet.UI |
| white | Sifflet.Data.TreeLayout |
| Widen | Sifflet.Data.Geometry |
| widen | Sifflet.Data.Geometry |
| widgetAddEvents | Sifflet.UI.LittleGtk, Sifflet.UI |
| WidgetClass | Sifflet.UI.LittleGtk, Sifflet.UI |
| widgetClassPath | Sifflet.UI.LittleGtk, Sifflet.UI |
| widgetDestroy | Sifflet.UI.LittleGtk, Sifflet.UI |
| widgetGrabFocus | Sifflet.UI.LittleGtk, Sifflet.UI |
| widgetSetCanFocus | Sifflet.UI.LittleGtk, Sifflet.UI |
| widgetSetDoubleBuffered | Sifflet.UI.LittleGtk, Sifflet.UI |
| widgetSetName | Sifflet.UI.LittleGtk, Sifflet.UI |
| widgetSetSizeRequest | Sifflet.UI.LittleGtk, Sifflet.UI |
| widgetShow | Sifflet.UI.LittleGtk, Sifflet.UI |
| widgetShowAll | Sifflet.UI.LittleGtk, Sifflet.UI |
| widgetSizeRequest | Sifflet.UI.LittleGtk, Sifflet.UI |
| widgetVisible | Sifflet.UI.LittleGtk, Sifflet.UI |
| Window | Sifflet.UI.LittleGtk, Sifflet.UI |
| windowMove | Sifflet.UI.LittleGtk, Sifflet.UI |
| windowNew | Sifflet.UI.LittleGtk, Sifflet.UI |
| WindowPosition | Sifflet.UI.LittleGtk, Sifflet.UI |
| windowPresent | Sifflet.UI.LittleGtk, Sifflet.UI |
| windowSetDefaultSize | Sifflet.UI.LittleGtk, Sifflet.UI |
| windowSetPosition | Sifflet.UI.LittleGtk, Sifflet.UI |
| windowSetTitle | Sifflet.UI.LittleGtk, Sifflet.UI |
| windowTitle | Sifflet.UI.LittleGtk, Sifflet.UI |
| WinId | Sifflet.UI.Types, Sifflet.UI |
| WinPosCenter | Sifflet.UI.LittleGtk, Sifflet.UI |
| WinPosCenterAlways | Sifflet.UI.LittleGtk, Sifflet.UI |
| WinPosCenterOnParent | Sifflet.UI.LittleGtk, Sifflet.UI |
| WinPosMouse | Sifflet.UI.LittleGtk, Sifflet.UI |
| WinPosNone | Sifflet.UI.LittleGtk, Sifflet.UI |
| wlab | Sifflet.Data.WGraph |
| WNode | Sifflet.Data.WGraph |
| Workspace |
| 1 (Type/Class) | Sifflet.UI.Types, Sifflet.UI |
| 2 (Data Constructor) | Sifflet.UI.Types, Sifflet.UI |
| workspaceNewDefault | Sifflet.UI.Workspace, Sifflet.UI |
| workspaceNewEditing | Sifflet.UI.Workspace, Sifflet.UI |
| wsBox | Sifflet.UI.Types, Sifflet.UI |
| wsButtonBar | Sifflet.UI.Types, Sifflet.UI |
| wsCanvas | Sifflet.UI.Types, Sifflet.UI |
| WSimple | Sifflet.Data.WGraph |
| wsPopStatusbar | Sifflet.UI.Tool, Sifflet.UI |
| wsPushStatusbar | Sifflet.UI.Tool, Sifflet.UI |
| wsStatusbar | Sifflet.UI.Types, Sifflet.UI |
| wstyle | Sifflet.Data.TreeLayout |
