| ActiveTcl User Guide |

# extbutton - Extends the behavior of the Tk button

## SYNOPSIS

extbutton pathName ?options?

## INHERITANCE

itk::Widget <- extbutton

## STANDARD OPTIONS

activebackground bd foreground text | activeforeground cursor image | bitmap disabledforeground justify | background font relief

See the "options" manual entry for details on the standard options.

## WIDGET-SPECIFIC OPTIONS

    Name:                   bitmapforeground
    Class:                  Foreground
    Command-Line Switch:    -bitmapforeground

Configures the foreground color of the bitmap.

    Name:                   command
    Class:                  Command
    Command-Line Switch:    -command

Associate a command with the extbutton. Simulates a Tk button's -command option. Invoked by either <1> events or by explicitly calling the public invoke() method.

    Name:                   defaultring
    Class:                  DefaultRing
    Command-Line Switch:    -defaultring

Boolean describing whether the extbutton displays its default ring given in any of the forms acceptable to Tcl_GetBoolean. The default is false.

    Name:                   defaultringpad
    Class:                  Pad
    Command-Line Switch:    -defaultringpad

Specifies the amount of space to be allocated to the indentation of the default ring ring given in any of the forms acceptable to Tcl_GetPixels. The option has no effect if the defaultring option is set to false. The default is 4 pixels.

    Name:                   imagePos
    Class:                  Position
    Command-Line Switch:    -imagepos

Specifies the image position relative to the message text: n, ne, nw, s, se, sw, w, wn, ws, e, en, or es. The default is w.

    Name:                   ringBackground
    Class:                  Background
    Command-Line Switch:    -ringbackground

Configures the background color of the default ring frame (if -defaultring is set to boolean true).

## DESCRIPTION

The extbutton extends the behavior of the atomic Tk button by allowing text and an image or bitmap to coexist. The user may use the -image or -bitmap options to specify an image as well as the -imagepos option to specify image position relative to the text. Note that the extbutton is not intended to be used without an image/bitmap. There will be an emtpy space next to the text if no image/bitmap is specified.

## METHODS

The extbutton command creates a new Tcl command whose name is pathName. This command may be used to invoke various operations on the widget. It has the following general form:

    pathName option ?arg arg ...?

## INHERITED METHODS

Each of the following methods are inherited from itk::Archetype. See that man page for details.

    pathName cget
    pathName component
    pathName config
    pathName configure

## WIDGET-SPECIFIC METHODS

pathName invoke
  Evaluates the command fragment associated with the -command option.

pathName flash
  Simulates the Tk button's flash command.

## EXAMPLES

    iwidgets::extbutton .eb -text "Bitmap example" -bitmap info \
      -background bisque -activeforeground red -bitmapforeground blue \
      -defaultring 1 -command {puts "Bisque is beautiful"}
    pack .eb -expand 1

    iwidgets::extbutton .eb -text "Image example" -relief ridge -image \
      [image create photo -file $itk::library/../iwidgets/demos/images/clear.gif] \
      -font 9x15bold -background lightgreen -imagepos e \
      -activebackground lightyellow
    pack .eb -expand 1

## AUTHOR

Chad Smith

## KEYWORDS

button, pushbutton