10.5.3 Abstract Gadget Classes

10.5.3.4 The Push-Button Gadget

arm-callback will be invoked when the push button becomes armed (such as when the pointer moves into it, or a pointer button is pressed over it). When the button is actually activated (by releasing the pointer button over it), activate-callback will be invoked. Finally, disarm-callback will be invoked after activate-callback, or when the pointer is moved outside of the button.

push-button [Class]

Summary:

The class that implements an abstract push button. It is a subclass of active-gadget and labelled-gadget-mixin.

Summary:

This initializes the "show as default" property for the gadget.

Arguments:

push-button

Summary:

Returns the "show as default" property for the push button gadget. When t, the push button will be drawn with a heavy border, which indicates that this button is the "default operation."

Summary:

The class that implements a portable push button; a subclass of push-button.

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