- Tk_CharBbox
- tk_chooseColor
- tk_chooseDirectory
- Tk_Class
- Tk_ClearSelection
- Tk_ClipboardAppend
- Tk_ClipboardClear
- Tk_CollapseMotionEvents
- Tk_ComputeTextLayout
- Tk_ConfigureInfo
- Tk_ConfigureValue
- Tk_ConfigureWidget
- Tk_CoordsToWindow
- Tk_CreateBinding
- Tk_CreateBindingTable
- Tk_CreateClientMessageHandler
- Tk_CreateErrorHandler
- Tk_CreateEventHandler
- Tk_CreateGenericHandler
- Tk_CreateImageType
- Tk_CreateItemType
- Tk_CreateOptionTable
- Tk_CreatePhotoImageFormat
- Tk_CreateSelHandler
- Tk_CreateWindow
- Tk_CreateWindowFromPath
- Tk_DefineBitmap
- Tk_DeleteAllBindings
- Tk_DeleteBinding
- Tk_DeleteBindingTable
- Tk_DeleteClientMessageHandler
- Tk_DeleteErrorHandler
- Tk_DeleteEventHandler
- Tk_DeleteGenericHandler
- Tk_DeleteImage
- Tk_DeleteOptionTable
- Tk_DeleteSelHandler
- Tk_DestroyWindow
- tk_dialog
- Tk_DistanceToTextLayout
- Tk_DrawChars
- Tk_DrawFocusHighlight
- Tk_DrawTextLayout
- Tk_FindPhoto
- tk_focusFollowsMouse
- tk_focusNext
- tk_focusPrev
- Tk_FontId
- Tk_FreeBitmap
- Tk_FreeBitmapFromObj
- Tk_FreeColor
- Tk_FreeColorFromObj
- Tk_FreeColormap
- Tk_FreeConfigOptions
- Tk_FreeCursor
- Tk_FreeCursorFromObj
- Tk_FreeFont
- Tk_FreeFontFromObj
- Tk_FreeGC
- Tk_FreeImage
- Tk_FreeOptions
- Tk_FreePixmap
- Tk_FreeSavedOptions
- Tk_FreeTextLayout
- Tk_FreeXId
- Tk_GeometryRequest
- Tk_GetAllBindings
- Tk_GetAnchor
- Tk_GetAnchorFromObj
- Tk_GetAtomName
MAN (3)
Library functions, covering in particular the C standard library