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Motif and CDE 2.1 Style Guide Reference
The default action is the action associated with a window that the user
would most likely want to invoke in a given situation when focus is in that
window. The default action may change as the focus and state of the window
changes. The default action is generally activated when a user double-clicks
the SELECT button, presses Enter (except when either operation is used for
other purposes), or presses Ctrl Enter or keypadEnter.
When to Use
RecommendedIf a user will want to perform a specific action at a specific time, make
it the default action.
RecommendedIf you use a secondary window for some interaction, provide a default
action in that window.
RequiredTo support new users and keyboard-only users, provide default actions as
shortcuts only for application features that are available by some other
RequiredWhen a window has focus, show default emphasis on the push button in the
window, if any, that performs the current default action for that window.
RequiredExcept when focus is on a tool or object or in a menu, if the default
action of a window varies, provide a push button that corresponds to each
RecommendedExcept when focus is on a tool or object or in a menu, provide a push
button that corresponds to each default action.
RecommendedWhen an explicit focus policy is in use and the focus is outside the
window, use default emphasis to indicate the push button that would perform
the default action if focus were moved to the window by using window
RequiredWhen the focus is on a push button, make its action the default action.
RequiredWhen the focus is on a choice in a menu other than a tear-off menu, make
the default action activate or toggle that choice.
RequiredWhen focus is on an object icon, the default action should present data of
the corresponding object; for a window icon display the corresponding window.
RequiredWhen the user presses keypadEnter, Ctrl Enter, or Enter (except in text),
invoke the default action. Except possibly when on an element that is both
activatable and selectable, it should have no other effect.
RequiredWhen the user double-clicks the SELECT button and focus is on a value
choice that is part of a mutually exclusive group of value choices (for
example, on a radio button, a tool, or in a value set), invoke the default
OptionalWhen the user double-clicks the SELECT button on a cascading choice that
leads to a menu (but does not press Enter or keypadEnter), you may invoke the
action of the menu's default choice. In particular, double-clicking the
SELECT button on the window menu button can be used to close the window.
Essential Related Topics
For more information, see the Push Button (Control) and Push Button
(Predefined) reference pages.
Supplemental Related Topics
For more information, see the Emphasis (Cue) and Window Menu reference
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