component(n) \[incr Tcl] component(n)

```

```

# [NAME](#NAME)

itcl::component - define components for extendedclass, widget or widgetadaptor

Parts of this description are "borrowed" from Tcl extension \[snit], as the functionality is mostly identical.

# [WARNING!](#WARNING!)

This is new functionality in \[incr Tcl] where the API can still change!!

# [SYNOPSIS](#SYNOPSIS)

```
public component comp ?-inherit?
protected component comp ?-inherit?
private component comp ?-inherit?
```

```

```

# [DESCRIPTION](#DESCRIPTION)

The **component** command is used inside an **\[incr Tcl]** extendedclass/widget/widgetadaptor definition to define components.

Explicitly declares a component called comp, and automatically defines the component's instance variable.

If the *-inherit* option is specified then all unknown methods and options will be delegated to this component. The name -inherit implies that instances of this new type inherit, in a sense, the methods and options of the component. That is, -inherit yes is equivalent to:

```
component mycomp
delegate option * to mycomp
delegate method * to mycomp
```

# [KEYWORDS](#KEYWORDS)

component, widget, widgetadaptor, extendedclass

4.0 itcl

---

Document: itclcomponent(n) from tcl 9.1.0-r1 (Chainguard OS)
Source: https://downloads.sourceforge.net/project/tcl/Tcl/9.1.0/tcl9.1.0-src.tar.gz