"A button's appearance can vary depending on the state of the mouse button if the " { $snippet "interior" } " or " { $snippet "boundary" } " slots are set to instances of " { $link button-pen } "."
"A button can be selected, which is distinct from being pressed. This state is held in the " { $snippet "selected?" } " slot, and is used by " { $link checkbox } " instances to render themselves when they're checked."
$nl
"A button can optionally display a message in the window's status bar whenever the mouse cursor hovers over the button. To enable this behavior, just set a string to the button's " { $snippet "tooltip" } " slot." } ;
{ $description "Creates a new " { $link button } " which is displayed with a solid border when it is under the mouse, informing the user that the gadget is clickable." } ;
{ $description "Creates a new " { $link button } " with a border which is always visible. The button appearance changes in response to mouse gestures using a " { $link button-pen } "." } ;
{ $description "Creates a new " { $link button } " derived from a " { $link <border-button> } " which calls the quotation every 100 milliseconds as long as the mouse button is held down." } ;
{ $class-description "A class implementing the " { $link draw-boundary } " and " { $link draw-interior } " generic words by delegating to an object in one of four slots which depend on the state of the button being drawn:"
"Button constructors take " { $emphasis "label specifiers" } " as input. A label specifier is either a string, an array of strings, a gadget or " { $link f } "."
