button tag

Presentation container tag

Displays a button that the user can click.

Sample usage

<button {OK} onClick=<putLn {/ok}>> displays an OK button that sends /ok to the program when clicked.
<button {Quit} onClick=<putLn {/quit}>> a common way to let the user end a program.

Fields

Primary field

Presentation container field

Content to display on the face of the button, usually a short piece of text. Other presentation tags, such as an img for an icon, may be included.

Secondary fields

Standard presentation fields (must be initialised at tag creation):
align field
backgroundColor field
bold field
border field
borderBottom field
borderColor field
borderLeft field
borderRight field
borderStyle field
borderTop field
bottom field
color field
editable field
focus field
focusOrder field
font field
height field
hotKey field
inline field
italic field
layer field
left field
margin field
marginBottom field
marginLeft field
marginRight field
marginTop field
onClick field
onContextClick field
onFocus field
onInput field
onKeyDown field
onKeyPress field
onKeyUp field
onMouseDown field
onMouseIn field
onMouseMove field
onMouseOut field
onMouseUp field
opacity field
pivot field
right field
rotate field
scroll field
scrollPos field
selectable field
size field
spacing field
spacingBottom field
spacingLeft field
spacingRight field
spacingTop field
top field
transition field
underline field
visible field
width field
wrap field

Behaviour

The button is displayed where it is created, as long as its container is visible and its own visible field is not false. Each time the user clicks it, the code in its onClick field is carried out.

Notes

Any presentation tag can respond to clicks with onClick. A button simply looks like something to be clicked.