The Radiobutton widget supports the following options:
Table 37-1. Radiobutton Options
Option | Type | Description |
---|---|---|
activebackground, activeforeground | color | The color to use when the button is activated. |
anchor | constant | Controls where in the button the text (or image) should be located. Use one of N, NE, E, SE, S, SW, W, NW, or CENTER. Default is CENTER. If you change this, it is probably a good idea to add some padding as well, using the padx and/or pady options. |
background (bg), foreground (fg) | color | The button color. The default is platform specific. |
bitmap | bitmap | The bitmap to display in the widget. If the image option is given, this option is ignored. The following bitmaps are available on all platforms: "error", "gray75", "gray50", "gray25", "gray12", "hourglass", "info", "questhead", "question", and "warning". The following additional bitmaps are available on the Macintosh only: "document", "stationery", "edition", "application", "accessory", "folder", "pfolder", "trash", "floppy", "ramdisk", "cdrom", "preferences", "querydoc", "stop", "note", and "caution". You can also load the bitmap from an XBM file. Just prefix the filename with an at-sign, for example "@sample.xbm". |
borderwidth (bd) | int | The width of the button border. The default is platform specific, but is usually 1 or 2 pixels. |
command | callback | A function or method that is called when the button is pressed. The callback can be a function, bound method, or any other callable Python object. |
cursor | cursor | The cursor to show when the mouse is moved over the button. |
default | int | If set, the button is a default button. Tk will indicate this by drawing a platform specific indicator (usually an extra border). NOTE: The syntax has changed in 8.0b2!!! |
disabledforeground | color | The color to use when the button is disabled. The background is shown in the background color. |
font | font | The font to use in the button. The button can only contain text in a single font. |
highlightbackground, highlightcolor | color | Controls how to draw the focus highlight border. When the widget has focus, the border is drawn in the highlightcolor color. Otherwise, it is drawn in the highlightbackground color. The defaults are system specific. |
highlightthickness | distance | Controls the width of the focus highlight border. Default is typically one or two pixels. |
image | image | The image to display in the widget. If specified, this takes precedence over the text and bitmap options. |
indicatoron | bool | Controls if the indicator should be drawn or not. For check and radio buttons, this is on by default. Setting this option to false means that the relief will be used as the indicator. If the button is selected, it is drawn as SUNKEN instead of RAISED. For a menu button, this is off by default. Setting it to true draws a small indicator to the right. This is used by the OptionMenu widget. |
justify | constant | Defines how to align multiple lines of text. Use LEFT, RIGHT, or CENTER. |
padx, paxy | distance | Button padding. These options specify the horizontal and vertical padding between the text or image, and the button border. |
relief | constant | Border decoration. Usually, the button is SUNKEN when pressed, and RAISED otherwise. Other possible values are GROOVE, RIDGE, and FLAT. |
selectcolor | color | Color to use for the selector. |
selectimage | image | Graphic image to use for the selector. |
state | constant | The button state: NORMAL, ACTIVE or DISABLED. Default is NORMAL. |
takefocus | flag | Indicates that the user can use the Tab key to move to this button. Default is an empty string, which means that the button accepts focus only if it has any keyboard bindings (default is on, in other words). |
text | string | The text to display in the button. The text can contain newlines. If the bitmap or image options are used, this option is ignored. |
textvariable | variable | Associates a Tkinter variable (usually a StringVar) to the button. If the variable is changed, the button text is updated. |
underline | int | Default is -1. |
value | None | The value to assign to the associated variable when the button is pressed. |
variable | variable | Associates a Tkinter variable to the button. When the button is pressed, the variable is set to value. Explicit changes to the variable are automatically reflected by the buttons. |
width, height | distance | The size of the button. If the button displays text, the size is given in text units. If the button displays an image, the size is given in pixels (or screen units). If the size is omitted, it is calculated based on the button contents. |
wraplength | distance | Determines when a button's text should be wrapped into multiple lines. This is given in screen units. Default is no wrapping. |