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<a name="Events"></a>
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<p>
Next: <a href="Rects.html#Rects" accesskey="n" rel="next">Rects</a>, Previous: <a href="Input.html#Input" accesskey="p" rel="prev">Input</a>, Up: <a href="API-Reference.html#API-Reference" accesskey="u" rel="up">API Reference</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index.html#Index" title="Index" rel="index">Index</a>]</p>
</div>
<hr>
<a name="Events-1"></a>
<h3 class="section">3.4 Events</h3>
<div class="example">
<pre class="example">(use-modules (sdl2 events))
</pre></div>
<dl>
<dt><a name="index-make_002dquit_002devent"></a>Procedure: <strong>make-quit-event</strong> <em>timestamp</em></dt>
</dl>
<dl>
<dt><a name="index-quit_002devent_003f"></a>Procedure: <strong>quit-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a quit event.
</p></dd></dl>
<dl>
<dt><a name="index-quit_002devent_002dtimestamp"></a>Procedure: <strong>quit-event-timestamp</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-make_002dwindow_002devent"></a>Procedure: <strong>make-window-event</strong> <em>timestamp window-id type vector</em></dt>
</dl>
<dl>
<dt><a name="index-window_002devent_003f"></a>Procedure: <strong>window-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002dshown_002devent_003f"></a>Procedure: <strong>window-shown-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window shown event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002dhidden_002devent_003f"></a>Procedure: <strong>window-hidden-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window hidden event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002dexposed_002devent_003f"></a>Procedure: <strong>window-exposed-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window exposed event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002dmoved_002devent_003f"></a>Procedure: <strong>window-moved-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window moved event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002dresized_002devent_003f"></a>Procedure: <strong>window-resized-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window resized event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002dsize_002dchanged_002devent_003f"></a>Procedure: <strong>window-size-changed-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window size changed event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002dminimized_002devent_003f"></a>Procedure: <strong>window-minimized-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window minimized event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002dmaximized_002devent_003f"></a>Procedure: <strong>window-maximized-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window maximized event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002drestored_002devent_003f"></a>Procedure: <strong>window-restored-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window restored event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002denter_002devent_003f"></a>Procedure: <strong>window-enter-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window enter event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002dleave_002devent_003f"></a>Procedure: <strong>window-leave-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window leave event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002dfocus_002dgained_002devent_003f"></a>Procedure: <strong>window-focus-gained-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window focus gained event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002dfocus_002dlost_002devent_003f"></a>Procedure: <strong>window-focus-lost-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window focus lost event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002dclosed_002devent_003f"></a>Procedure: <strong>window-closed-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a window closed event.
</p></dd></dl>
<dl>
<dt><a name="index-window_002devent_002dtimestamp"></a>Procedure: <strong>window-event-timestamp</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-window_002devent_002dwindow_002did"></a>Procedure: <strong>window-event-window-id</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-window_002devent_002dtype"></a>Procedure: <strong>window-event-type</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-window_002devent_002dvector"></a>Procedure: <strong>window-event-vector</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-make_002dkeyboard_002devent"></a>Procedure: <strong>make-keyboard-event</strong> <em>timestamp window-id pressed? repeat? key scancode modifiers</em></dt>
</dl>
<dl>
<dt><a name="index-keyboard_002devent_003f"></a>Procedure: <strong>keyboard-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a keyboard event.
</p></dd></dl>
<dl>
<dt><a name="index-keyboard_002ddown_002devent_003f"></a>Procedure: <strong>keyboard-down-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a key press event.
</p></dd></dl>
<dl>
<dt><a name="index-keyboard_002dup_002devent_003f"></a>Procedure: <strong>keyboard-up-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a key release event.
</p></dd></dl>
<dl>
<dt><a name="index-keyboard_002devent_002dtimestamp"></a>Procedure: <strong>keyboard-event-timestamp</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-keyboard_002devent_002dwindow_002did"></a>Procedure: <strong>keyboard-event-window-id</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-keyboard_002devent_002dpressed_003f"></a>Procedure: <strong>keyboard-event-pressed?</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-keyboard_002devent_002drepeat_003f"></a>Procedure: <strong>keyboard-event-repeat?</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-keyboard_002devent_002dkey"></a>Procedure: <strong>keyboard-event-key</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-keyboard_002devent_002dscancode"></a>Procedure: <strong>keyboard-event-scancode</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-keyboard_002devent_002dmodifiers"></a>Procedure: <strong>keyboard-event-modifiers</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-make_002dtext_002dinput_002devent"></a>Procedure: <strong>make-text-input-event</strong> <em>timestamp window-id text</em></dt>
</dl>
<dl>
<dt><a name="index-text_002dinput_002devent_003f"></a>Procedure: <strong>text-input-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a text input event.
</p></dd></dl>
<dl>
<dt><a name="index-text_002dinput_002devent_002dtimestamp"></a>Procedure: <strong>text-input-event-timestamp</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-text_002dinput_002devent_002dwindow_002did"></a>Procedure: <strong>text-input-event-window-id</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-text_002dinput_002devent_002dtext"></a>Procedure: <strong>text-input-event-text</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-make_002dmouse_002dbutton_002devent"></a>Procedure: <strong>make-mouse-button-event</strong> <em>timestamp window-id which button pressed? clicks x y</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dbutton_002devent_003f"></a>Procedure: <strong>mouse-button-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a mouse button event.
</p></dd></dl>
<dl>
<dt><a name="index-mouse_002dbutton_002ddown_002devent_003f"></a>Procedure: <strong>mouse-button-down-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a mouse button down event.
</p></dd></dl>
<dl>
<dt><a name="index-mouse_002dbutton_002dup_002devent_003f"></a>Procedure: <strong>mouse-button-up-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a mouse button up event.
</p></dd></dl>
<dl>
<dt><a name="index-mouse_002dbutton_002devent_002dtimestamp"></a>Procedure: <strong>mouse-button-event-timestamp</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dbutton_002devent_002dwindow_002did"></a>Procedure: <strong>mouse-button-event-window-id</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dbutton_002devent_002dwhich"></a>Procedure: <strong>mouse-button-event-which</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dbutton_002devent_002dbutton"></a>Procedure: <strong>mouse-button-event-button</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dbutton_002devent_002dpressed_003f"></a>Procedure: <strong>mouse-button-event-pressed?</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dbutton_002devent_002dclicks"></a>Procedure: <strong>mouse-button-event-clicks</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dbutton_002devent_002dx"></a>Procedure: <strong>mouse-button-event-x</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dbutton_002devent_002dy"></a>Procedure: <strong>mouse-button-event-y</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-make_002dmouse_002dmotion_002devent"></a>Procedure: <strong>make-mouse-motion-event</strong> <em>timestamp window-id which buttons x y x-rel y-rel</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dmotion_002devent_003f"></a>Procedure: <strong>mouse-motion-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a mouse motion event.
</p></dd></dl>
<dl>
<dt><a name="index-mouse_002dmotion_002devent_002dtimestamp"></a>Procedure: <strong>mouse-motion-event-timestamp</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dmotion_002devent_002dwindow_002did"></a>Procedure: <strong>mouse-motion-event-window-id</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dmotion_002devent_002dwhich"></a>Procedure: <strong>mouse-motion-event-which</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dmotion_002devent_002dbuttons"></a>Procedure: <strong>mouse-motion-event-buttons</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dmotion_002devent_002dx"></a>Procedure: <strong>mouse-motion-event-x</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dmotion_002devent_002dy"></a>Procedure: <strong>mouse-motion-event-y</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dmotion_002devent_002dx_002drel"></a>Procedure: <strong>mouse-motion-event-x-rel</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-mouse_002dmotion_002devent_002dy_002drel"></a>Procedure: <strong>mouse-motion-event-y-rel</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-make_002djoystick_002daxis_002devent"></a>Procedure: <strong>make-joystick-axis-event</strong> <em>timestamp which axis value</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002daxis_002devent_003f"></a>Procedure: <strong>joystick-axis-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a joystick axis event.
</p></dd></dl>
<dl>
<dt><a name="index-joystick_002daxis_002devent_002dtimestamp"></a>Procedure: <strong>joystick-axis-event-timestamp</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002daxis_002devent_002dwhich"></a>Procedure: <strong>joystick-axis-event-which</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002daxis_002devent_002dbutton"></a>Procedure: <strong>joystick-axis-event-button</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002daxis_002devent_002dpressed_003f"></a>Procedure: <strong>joystick-axis-event-pressed?</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-make_002djoystick_002dball_002devent"></a>Procedure: <strong>make-joystick-ball-event</strong> <em>timestamp which ball x-rel y-rel</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002dball_002devent_003f"></a>Procedure: <strong>joystick-ball-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a joystick ball event.
</p></dd></dl>
<dl>
<dt><a name="index-joystick_002dball_002devent_002dtimestamp"></a>Procedure: <strong>joystick-ball-event-timestamp</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002dball_002devent_002dwhich"></a>Procedure: <strong>joystick-ball-event-which</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002dball_002devent_002dball"></a>Procedure: <strong>joystick-ball-event-ball</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002dball_002devent_002dx_002drel"></a>Procedure: <strong>joystick-ball-event-x-rel</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002dball_002devent_002dy_002drel"></a>Procedure: <strong>joystick-ball-event-y-rel</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-make_002djoystick_002dhat_002devent"></a>Procedure: <strong>make-joystick-hat-event</strong> <em>timestamp which hat value</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002dhat_002devent_003f"></a>Procedure: <strong>joystick-hat-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a joystick hat event.
</p></dd></dl>
<dl>
<dt><a name="index-joystick_002dhat_002devent_002dtimestamp"></a>Procedure: <strong>joystick-hat-event-timestamp</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002dhat_002devent_002dwhich"></a>Procedure: <strong>joystick-hat-event-which</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002dhat_002devent_002dhat"></a>Procedure: <strong>joystick-hat-event-hat</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002dhat_002devent_002dvalue"></a>Procedure: <strong>joystick-hat-event-value</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-make_002djoystick_002ddevice_002devent"></a>Procedure: <strong>make-joystick-device-event</strong> <em>timestamp which action</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002ddevice_002devent_003f"></a>Procedure: <strong>joystick-device-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a joystick device event.
</p></dd></dl>
<dl>
<dt><a name="index-joystick_002ddevice_002devent_002dtimestamp"></a>Procedure: <strong>joystick-device-event-timestamp</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002ddevice_002devent_002dwhich"></a>Procedure: <strong>joystick-device-event-which</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-joystick_002ddevice_002devent_002daction"></a>Procedure: <strong>joystick-device-event-action</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-make_002dcontroller_002daxis_002devent"></a>Procedure: <strong>make-controller-axis-event</strong> <em>timestamp which axis value</em></dt>
</dl>
<dl>
<dt><a name="index-controller_002daxis_002devent_003f"></a>Procedure: <strong>controller-axis-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>e</var> is a game controller axis event.
</p></dd></dl>
<dl>
<dt><a name="index-controller_002daxis_002devent_002dtimestamp"></a>Procedure: <strong>controller-axis-event-timestamp</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-controller_002daxis_002devent_002dwhich"></a>Procedure: <strong>controller-axis-event-which</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-controller_002daxis_002devent_002daxis"></a>Procedure: <strong>controller-axis-event-axis</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-controller_002daxis_002devent_002dvalue"></a>Procedure: <strong>controller-axis-event-value</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-make_002dcontroller_002dbutton_002devent"></a>Procedure: <strong>make-controller-button-event</strong> <em>timestamp which button pressed?</em></dt>
</dl>
<dl>
<dt><a name="index-controller_002dbutton_002devent_003f"></a>Procedure: <strong>controller-button-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>event</var> is a game controller button event.
</p></dd></dl>
<dl>
<dt><a name="index-controller_002dbutton_002ddown_002devent_003f"></a>Procedure: <strong>controller-button-down-event?</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-controller_002dbutton_002dup_002devent_003f"></a>Procedure: <strong>controller-button-up-event?</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-controller_002dbutton_002devent_002dtimestamp"></a>Procedure: <strong>controller-button-event-timestamp</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-controller_002dbutton_002devent_002dwhich"></a>Procedure: <strong>controller-button-event-which</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-controller_002dbutton_002devent_002dbutton"></a>Procedure: <strong>controller-button-event-button</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-controller_002dbutton_002devent_002dpressed_003f"></a>Procedure: <strong>controller-button-event-pressed?</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-make_002dcontroller_002ddevice_002devent"></a>Procedure: <strong>make-controller-device-event</strong> <em>timestamp which action</em></dt>
</dl>
<dl>
<dt><a name="index-controller_002ddevice_002devent_003f"></a>Procedure: <strong>controller-device-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>event</var> is a game controller device event.
</p></dd></dl>
<dl>
<dt><a name="index-controller_002dadded_002devent_003f"></a>Procedure: <strong>controller-added-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>event</var> is a game controller device event with the
’added’ action.
</p></dd></dl>
<dl>
<dt><a name="index-controller_002dremoved_002devent_003f"></a>Procedure: <strong>controller-removed-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>event</var> is a game controller device event with the
’removed’ action.
</p></dd></dl>
<dl>
<dt><a name="index-controller_002dremapped_002devent_003f"></a>Procedure: <strong>controller-remapped-event?</strong> <em>e</em></dt>
<dd><p>Return <code>#t</code> if <var>event</var> is a game controller device event with the
’remapped’ action.
</p></dd></dl>
<dl>
<dt><a name="index-controller_002ddevice_002devent_002dtimestamp"></a>Procedure: <strong>controller-device-event-timestamp</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-controller_002ddevice_002devent_002dwhich"></a>Procedure: <strong>controller-device-event-which</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-controller_002ddevice_002devent_002daction"></a>Procedure: <strong>controller-device-event-action</strong> <em>e</em></dt>
</dl>
<dl>
<dt><a name="index-poll_002devent"></a>Procedure: <strong>poll-event</strong></dt>
</dl>
<hr>
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