2.1.17 event%

GUI: PLT Graphics Toolkit

2

2.1

Windowing Classes

2.1.1	area<%>
2.1.2	area-container<%>
2.1.3	area-container-window<%>
2.1.4	button%
2.1.5	canvas<%>
2.1.6	canvas%
2.1.7	check-box%
2.1.8	checkable-menu-item%
2.1.9	choice%
2.1.10	clipboard-client%
2.1.11	clipboard<%>
2.1.12	combo-field%
2.1.13	control<%>
2.1.14	control-event%
2.1.15	cursor%
2.1.16	dialog%
2.1.17	event%
2.1.18	frame%
2.1.19	gauge%
2.1.20	group-box-panel%
2.1.21	grow-box-spacer-pane%
2.1.22	horizontal-pane%
2.1.23	horizontal-panel%
2.1.24	key-event%
2.1.25	labelled-menu-item<%>
2.1.26	list-box%
2.1.27	list-control<%>
2.1.28	menu%
2.1.29	menu-bar%
2.1.30	menu-item<%>
2.1.31	menu-item%
2.1.32	menu-item-container<%>
2.1.33	message%
2.1.34	mouse-event%
2.1.35	pane%
2.1.36	panel%
2.1.37	popup-menu%
2.1.38	radio-box%
2.1.39	selectable-menu-item<%>
2.1.40	separator-menu-item%
2.1.41	scroll-event%
2.1.42	slider%
2.1.43	subarea<%>
2.1.44	subwindow<%>
2.1.45	tab-panel%
2.1.46	text-field%
2.1.47	timer%
2.1.48	top-level-window<%>
2.1.49	vertical-pane%
2.1.50	vertical-panel%
2.1.51	window<%>

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event% : class?

superclass: object%

An event% object contains information about a control, keyboard, mouse, or scroll event. See also control-event%, key-event%, mouse-event%, and scroll-event%.

(new event% [[time-stamp time-stamp]]) → (is-a?/c event%)

time-stamp : (and/c exact? integer?) = 0

See get-time-stamp for information about time-stamp.

(send an-event get-time-stamp) → (and/c exact? integer?)

Returns the time, in milliseconds, when the event occurred. This time is compatible with times reported by MzScheme’s current-milliseconds procedure.

(send an-event set-time-stamp time) → void?

time : (and/c exact? integer?)

Set the time, in milliseconds, when the event occurred. See also MzScheme’s current-milliseconds.

If the supplied value is outside the platform-specific range of time values, an exn:fail:contract exception is raised.

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