[Overview][Constants][Types][Classes][Procedures and functions][Index] | Reference for unit 'ExtCtrls' (#lcl)

# Reference for unit 'ExtCtrls': Classes

`TBevel` |  | A bevel placed around the edge of buttons and other components
`TBoundLabel` |  | TBoundLabel: A label bound to another object, for example in TLabeledEdit
`TCheckGroup` |  | TCheckGroup : A group of Check Boxes physically and logically grouped together on a form
`TCustomCheckGroup` |  | TCustomCheckGroup: The base type for TCheckGroup
`TCustomIdleTimer` |  | TCustomIdleTimer - base class for TIdleTimer
`TCustomImage` |  | TCustomImage - the base type for TImage
`TCustomLabeledEdit` |  | Custom Labelled Edit
`TCustomNotebook` |  | TCustomNotebook: The base type for TNotebook and TPageControl
`TCustomPage` |  | TCustomPage: The base type for Page
`TCustomPanel` |  | TCustomPanel: The base type for TPanel
`TCustomRadioGroup` |  | TCustomRadioGroup: the base type for TRadioGroup
`TCustomSplitter` |  | TCustomSplitter : the base type for TSplitter
`TCustomTrayIcon` |  | TCustomTrayIcon - the base class for TTrayIcon, a multiplatform System Tray component.
`TIdleTimer` |  | TIdleTimer : A timer to measure idle time between processes
`TImage` |  | TImage - a graphic image placed on the form; usually loaded from a picture file.
`TLabeledEdit` |  | Labelled Edit: An Edit Box with a permanently attached Label
`TNBPages` |  | TNBPages - NoteBook Pages: an array of strings containing the names of the pages
`TNotebook` |  | TNotebook: A series of tabbed pages placed together to make a notebook
`TPage` |  | TPage: One of the pages in a tabbed Notebook
`TPaintBox` |  | TPaintBox: a painted rectangular box with defined size and color
`TPanel` |  | TPanel: A defined rectangular area of the form into which other components can be placed
`TRadioGroup` |  | TRadioGroup : A group of related but mutually exclusive radio buttons, requiring the user to select one af a set of alternatives
`TShape` |  | TShape - An arbitrary graphic geometrical shape placed on the Form. It may be one of a series of standard shapes defined by TShapeType
`TSplitter` |  | TSplitter : A vertical or horizontal bar placed on a panel or form, to separate sub-panels functionally
`TTimer` |  | TTimer: An elapsed timer useful in many applications
`TTrayIcon` |  | TTrayIcon is a multiplatform System Tray component. It adds an icon to the tray and signifies an application that is inactive but ready to be activated. Under Windows the System tray is usually located on the bottom-right corner of the screen, but it may be elsewhere. On other operating systems this position varies.

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