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<section id="module-pygame.event">
<span id="pygame-event"></span><dl class="definition">
<dt class="title module sig sig-object">
<code class="docutils literal notranslate"><span class="pre">pygame.event</span></code></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">pygame module for interacting with events and queues</span></div>
</div>
<table class="toc docutils align-default">
<colgroup>
<col style="width: 27%" />
<col style="width: 1%" />
<col style="width: 72%" />
</colgroup>
<tbody>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.pump">pygame.event.pump</a></div>
</td>
<td>—</td>
<td>internally process pygame event handlers</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.get">pygame.event.get</a></div>
</td>
<td>—</td>
<td>get events from the queue</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.poll">pygame.event.poll</a></div>
</td>
<td>—</td>
<td>get a single event from the queue</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.wait">pygame.event.wait</a></div>
</td>
<td>—</td>
<td>wait for a single event from the queue</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.peek">pygame.event.peek</a></div>
</td>
<td>—</td>
<td>test if event types are waiting on the queue</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.clear">pygame.event.clear</a></div>
</td>
<td>—</td>
<td>remove all events from the queue</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.event_name">pygame.event.event_name</a></div>
</td>
<td>—</td>
<td>get the string name from an event id</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.set_blocked">pygame.event.set_blocked</a></div>
</td>
<td>—</td>
<td>control which events are allowed on the queue</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.set_allowed">pygame.event.set_allowed</a></div>
</td>
<td>—</td>
<td>control which events are allowed on the queue</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.get_blocked">pygame.event.get_blocked</a></div>
</td>
<td>—</td>
<td>test if a type of event is blocked from the queue</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.set_grab">pygame.event.set_grab</a></div>
</td>
<td>—</td>
<td>control the sharing of input devices with other applications</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.get_grab">pygame.event.get_grab</a></div>
</td>
<td>—</td>
<td>test if the program is sharing input devices</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.post">pygame.event.post</a></div>
</td>
<td>—</td>
<td>place a new event on the queue</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.custom_type">pygame.event.custom_type</a></div>
</td>
<td>—</td>
<td>make custom user event type</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.Event">pygame.event.Event</a></div>
</td>
<td>—</td>
<td>create a new event object</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.EventType">pygame.event.EventType</a></div>
</td>
<td>—</td>
<td>pygame object for representing events</td>
</tr>
</tbody>
</table>
<p>Pygame handles all its event messaging through an event queue. The routines in
this module help you manage that event queue. The input queue is heavily
dependent on the <a class="tooltip reference internal" href="display.html#module-pygame.display" title=""><code class="xref py py-mod docutils literal notranslate"><span class="pre">pygame.display</span></code><span class="tooltip-content">pygame module to control the display window and screen</span></a> module. If the display has not been
initialized and a video mode not set, the event queue may not work properly.</p>
<p>The event queue has an upper limit on the number of events it can hold. When
the queue becomes full new events are quietly dropped. To prevent lost events,
especially input events which signal a quit command, your program must handle
events every frame (with <code class="docutils literal notranslate"><span class="pre">pygame.event.get()</span></code>, <code class="docutils literal notranslate"><span class="pre">pygame.event.pump()</span></code>,
<code class="docutils literal notranslate"><span class="pre">pygame.event.wait()</span></code>, <code class="docutils literal notranslate"><span class="pre">pygame.event.peek()</span></code> or <code class="docutils literal notranslate"><span class="pre">pygame.event.clear()</span></code>)
and process them. Not handling events may cause your system to decide your
program has locked up. To speed up queue processing use
<a class="tooltip reference internal" href="#pygame.event.set_blocked" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.event.set_blocked()</span></code><span class="tooltip-content">control which events are allowed on the queue</span></a> to limit which events get queued.</p>
<p>To get the state of various input devices, you can forego the event queue and
access the input devices directly with their appropriate modules:
<a class="tooltip reference internal" href="mouse.html#module-pygame.mouse" title=""><code class="xref py py-mod docutils literal notranslate"><span class="pre">pygame.mouse</span></code><span class="tooltip-content">pygame module to work with the mouse</span></a>, <a class="tooltip reference internal" href="key.html#module-pygame.key" title=""><code class="xref py py-mod docutils literal notranslate"><span class="pre">pygame.key</span></code><span class="tooltip-content">pygame module to work with the keyboard</span></a>, and <a class="tooltip reference internal" href="joystick.html#module-pygame.joystick" title=""><code class="xref py py-mod docutils literal notranslate"><span class="pre">pygame.joystick</span></code><span class="tooltip-content">Pygame module for interacting with joysticks, gamepads, and trackballs.</span></a>. If you use
this method, remember that pygame requires some form of communication with the
system window manager and other parts of the platform. To keep pygame in sync
with the system, you will need to call <a class="tooltip reference internal" href="#pygame.event.pump" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.event.pump()</span></code><span class="tooltip-content">internally process pygame event handlers</span></a> to keep
everything current. Usually, this should be called once per game loop.
Note: Joysticks will not send any events until the device has been initialized.</p>
<p>The event queue contains <a class="tooltip reference internal" href="#pygame.event.EventType" title=""><code class="xref py py-class docutils literal notranslate"><span class="pre">pygame.event.EventType</span></code><span class="tooltip-content">pygame object for representing events</span></a> event objects.
There are a variety of ways to access the queued events, from simply
checking for the existence of events, to grabbing them directly off the stack.
The event queue also offers some simple filtering which can slightly help
performance by blocking certain event types from the queue. Use
<a class="tooltip reference internal" href="#pygame.event.set_allowed" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.event.set_allowed()</span></code><span class="tooltip-content">control which events are allowed on the queue</span></a> and <a class="tooltip reference internal" href="#pygame.event.set_blocked" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.event.set_blocked()</span></code><span class="tooltip-content">control which events are allowed on the queue</span></a> to
change this filtering. By default, all event types can be placed on the queue.</p>
<p>All <a class="tooltip reference internal" href="#pygame.event.EventType" title=""><code class="xref py py-class docutils literal notranslate"><span class="pre">pygame.event.EventType</span></code><span class="tooltip-content">pygame object for representing events</span></a> instances contain an event type identifier
and attributes specific to that event type. The event type identifier is
accessible as the <a class="tooltip reference internal" href="#pygame.event.EventType.type" title=""><code class="xref py py-attr docutils literal notranslate"><span class="pre">pygame.event.EventType.type</span></code><span class="tooltip-content">event type identifier.</span></a> property. Any of the
event specific attributes can be accessed through the
<a class="tooltip reference internal" href="#pygame.event.EventType.__dict__" title=""><code class="xref py py-attr docutils literal notranslate"><span class="pre">pygame.event.EventType.__dict__</span></code><span class="tooltip-content">event attribute dictionary</span></a> attribute or directly as an attribute
of the event object (as member lookups are passed through to the object's
dictionary values). The event object has no method functions. Users can create
their own new events with the <a class="tooltip reference internal" href="#pygame.event.Event" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.event.Event()</span></code><span class="tooltip-content">create a new event object</span></a> function.</p>
<p>The event type identifier is in between the values of <code class="docutils literal notranslate"><span class="pre">NOEVENT</span></code> and
<code class="docutils literal notranslate"><span class="pre">NUMEVENTS</span></code>. User defined events should have a value in the inclusive range
of <code class="docutils literal notranslate"><span class="pre">USEREVENT</span></code> to <code class="docutils literal notranslate"><span class="pre">NUMEVENTS</span> <span class="pre">-</span> <span class="pre">1</span></code>. User defined events can get a custom
event number with <a class="tooltip reference internal" href="#pygame.event.custom_type" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.event.custom_type()</span></code><span class="tooltip-content">make custom user event type</span></a>.
It is recommended all user events follow this system.</p>
<p>Events support equality and inequality comparisons. Two events are equal if
they are the same type and have identical attribute values.</p>
<p>While debugging and experimenting, you can print an event object for a quick
display of its type and members. The function <a class="tooltip reference internal" href="#pygame.event.event_name" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.event.event_name()</span></code><span class="tooltip-content">get the string name from an event id</span></a>
can be used to get a string representing the name of the event type.</p>
<p>Events that come from the system will have a guaranteed set of member
attributes based on the type. The following is a list event types with their
specific attributes.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">QUIT</span> <span class="n">none</span>
<span class="n">ACTIVEEVENT</span> <span class="n">gain</span><span class="p">,</span> <span class="n">state</span>
<span class="n">KEYDOWN</span> <span class="n">key</span><span class="p">,</span> <span class="n">mod</span><span class="p">,</span> <span class="n">unicode</span><span class="p">,</span> <span class="n">scancode</span>
<span class="n">KEYUP</span> <span class="n">key</span><span class="p">,</span> <span class="n">mod</span><span class="p">,</span> <span class="n">unicode</span><span class="p">,</span> <span class="n">scancode</span>
<span class="n">MOUSEMOTION</span> <span class="n">pos</span><span class="p">,</span> <span class="n">rel</span><span class="p">,</span> <span class="n">buttons</span><span class="p">,</span> <span class="n">touch</span>
<span class="n">MOUSEBUTTONUP</span> <span class="n">pos</span><span class="p">,</span> <span class="n">button</span><span class="p">,</span> <span class="n">touch</span>
<span class="n">MOUSEBUTTONDOWN</span> <span class="n">pos</span><span class="p">,</span> <span class="n">button</span><span class="p">,</span> <span class="n">touch</span>
<span class="n">JOYAXISMOTION</span> <span class="n">joy</span> <span class="p">(</span><span class="n">deprecated</span><span class="p">),</span> <span class="n">instance_id</span><span class="p">,</span> <span class="n">axis</span><span class="p">,</span> <span class="n">value</span>
<span class="n">JOYBALLMOTION</span> <span class="n">joy</span> <span class="p">(</span><span class="n">deprecated</span><span class="p">),</span> <span class="n">instance_id</span><span class="p">,</span> <span class="n">ball</span><span class="p">,</span> <span class="n">rel</span>
<span class="n">JOYHATMOTION</span> <span class="n">joy</span> <span class="p">(</span><span class="n">deprecated</span><span class="p">),</span> <span class="n">instance_id</span><span class="p">,</span> <span class="n">hat</span><span class="p">,</span> <span class="n">value</span>
<span class="n">JOYBUTTONUP</span> <span class="n">joy</span> <span class="p">(</span><span class="n">deprecated</span><span class="p">),</span> <span class="n">instance_id</span><span class="p">,</span> <span class="n">button</span>
<span class="n">JOYBUTTONDOWN</span> <span class="n">joy</span> <span class="p">(</span><span class="n">deprecated</span><span class="p">),</span> <span class="n">instance_id</span><span class="p">,</span> <span class="n">button</span>
<span class="n">VIDEORESIZE</span> <span class="n">size</span><span class="p">,</span> <span class="n">w</span><span class="p">,</span> <span class="n">h</span>
<span class="n">VIDEOEXPOSE</span> <span class="n">none</span>
<span class="n">USEREVENT</span> <span class="n">code</span>
</pre></div>
</div>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in pygame 2.0.0: </span>The <code class="docutils literal notranslate"><span class="pre">joy</span></code> attribute was deprecated, <code class="docutils literal notranslate"><span class="pre">instance_id</span></code> was added.</p>
</div>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in pygame 2.0.1: </span>The <code class="docutils literal notranslate"><span class="pre">unicode</span></code> attribute was added to <code class="docutils literal notranslate"><span class="pre">KEYUP</span></code> event.</p>
</div>
<p>You can also find a list of constants for keyboard keys
<a class="reference internal" href="key.html#key-constants-label"><span class="std std-ref">here</span></a>.</p>
<div class="line-block">
<div class="line"><br /></div>
</div>
<p>On MacOSX when a file is opened using a pygame application, a <code class="docutils literal notranslate"><span class="pre">USEREVENT</span></code>
with its <code class="docutils literal notranslate"><span class="pre">code</span></code> attribute set to <code class="docutils literal notranslate"><span class="pre">pygame.USEREVENT_DROPFILE</span></code> is generated.
There is an additional attribute called <code class="docutils literal notranslate"><span class="pre">filename</span></code> where the name of the file
being accessed is stored.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">USEREVENT</span> <span class="n">code</span><span class="o">=</span><span class="n">pygame</span><span class="o">.</span><span class="n">USEREVENT_DROPFILE</span><span class="p">,</span> <span class="n">filename</span>
</pre></div>
</div>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 1.9.2.</span></p>
</div>
<div class="line-block">
<div class="line"><br /></div>
</div>
<p>When compiled with SDL2, pygame has these additional events and their
attributes.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">AUDIODEVICEADDED</span> <span class="n">which</span><span class="p">,</span> <span class="n">iscapture</span>
<span class="n">AUDIODEVICEREMOVED</span> <span class="n">which</span><span class="p">,</span> <span class="n">iscapture</span>
<span class="n">FINGERMOTION</span> <span class="n">touch_id</span><span class="p">,</span> <span class="n">finger_id</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">dx</span><span class="p">,</span> <span class="n">dy</span>
<span class="n">FINGERDOWN</span> <span class="n">touch_id</span><span class="p">,</span> <span class="n">finger_id</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">dx</span><span class="p">,</span> <span class="n">dy</span>
<span class="n">FINGERUP</span> <span class="n">touch_id</span><span class="p">,</span> <span class="n">finger_id</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">dx</span><span class="p">,</span> <span class="n">dy</span>
<span class="n">MOUSEWHEEL</span> <span class="n">which</span><span class="p">,</span> <span class="n">flipped</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">touch</span>
<span class="n">MULTIGESTURE</span> <span class="n">touch_id</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">pinched</span><span class="p">,</span> <span class="n">rotated</span><span class="p">,</span> <span class="n">num_fingers</span>
<span class="n">TEXTEDITING</span> <span class="n">text</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">length</span>
<span class="n">TEXTINPUT</span> <span class="n">text</span>
</pre></div>
</div>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 1.9.5.</span></p>
</div>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in pygame 2.0.2: </span>Fixed amount horizontal scroll (x, positive to the right and negative to the left).</p>
</div>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in pygame 2.0.2: </span>The <code class="docutils literal notranslate"><span class="pre">touch</span></code> attribute was added to all the <code class="docutils literal notranslate"><span class="pre">MOUSE</span></code> events.</p>
</div>
<p>The <code class="docutils literal notranslate"><span class="pre">touch</span></code> attribute of <code class="docutils literal notranslate"><span class="pre">MOUSE</span></code> events indicates whether or not the events were generated
by a touch input device, and not a real mouse. You might want to ignore such events, if your application
already handles <code class="docutils literal notranslate"><span class="pre">FINGERMOTION</span></code>, <code class="docutils literal notranslate"><span class="pre">FINGERDOWN</span></code> and <code class="docutils literal notranslate"><span class="pre">FINGERUP</span></code> events.</p>
<div class="line-block">
<div class="line"><br /></div>
</div>
<p>Many new events were introduced in pygame 2.</p>
<p>pygame can recognize text or files dropped in its window. If a file
is dropped, <code class="docutils literal notranslate"><span class="pre">DROPFILE</span></code> event will be sent, <code class="docutils literal notranslate"><span class="pre">file</span></code> will be its path.
The <code class="docutils literal notranslate"><span class="pre">DROPTEXT</span></code> event is only supported on X11.</p>
<p><code class="docutils literal notranslate"><span class="pre">MIDIIN</span></code> and <code class="docutils literal notranslate"><span class="pre">MIDIOUT</span></code> are events reserved for <a class="tooltip reference internal" href="midi.html#module-pygame.midi" title=""><code class="xref py py-mod docutils literal notranslate"><span class="pre">pygame.midi</span></code><span class="tooltip-content">pygame module for interacting with midi input and output.</span></a> use.</p>
<p>pygame 2 also supports controller hot-plugging</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">DROPBEGIN</span>
<span class="n">DROPCOMPLETE</span>
<span class="n">DROPFILE</span> <span class="n">file</span>
<span class="n">DROPTEXT</span> <span class="n">text</span>
<span class="n">MIDIIN</span>
<span class="n">MIDIOUT</span>
<span class="n">CONTROLLERDEVICEADDED</span> <span class="n">device_index</span>
<span class="n">JOYDEVICEADDED</span> <span class="n">device_index</span>
<span class="n">CONTROLLERDEVICEREMOVED</span> <span class="n">instance_id</span>
<span class="n">JOYDEVICEREMOVED</span> <span class="n">instance_id</span>
<span class="n">CONTROLLERDEVICEREMAPPED</span> <span class="n">instance_id</span>
</pre></div>
</div>
<p>Also in this version, <code class="docutils literal notranslate"><span class="pre">instance_id</span></code> attributes were added to joystick events,
and the <code class="docutils literal notranslate"><span class="pre">joy</span></code> attribute was deprecated.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 2.0.0.</span></p>
</div>
<p>Since pygame 2.0.1, there are a new set of events, called window events.
Here is a list of all window events, along with a short description</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">Event</span> <span class="nb">type</span> <span class="n">Short</span> <span class="n">description</span>
<span class="n">WINDOWSHOWN</span> <span class="n">Window</span> <span class="n">became</span> <span class="n">shown</span>
<span class="n">WINDOWHIDDEN</span> <span class="n">Window</span> <span class="n">became</span> <span class="n">hidden</span>
<span class="n">WINDOWEXPOSED</span> <span class="n">Window</span> <span class="n">got</span> <span class="n">updated</span> <span class="n">by</span> <span class="n">some</span> <span class="n">external</span> <span class="n">event</span>
<span class="n">WINDOWMOVED</span> <span class="n">Window</span> <span class="n">got</span> <span class="n">moved</span>
<span class="n">WINDOWRESIZED</span> <span class="n">Window</span> <span class="n">got</span> <span class="n">resized</span>
<span class="n">WINDOWSIZECHANGED</span> <span class="n">Window</span> <span class="n">changed</span> <span class="n">its</span> <span class="n">size</span>
<span class="n">WINDOWMINIMIZED</span> <span class="n">Window</span> <span class="n">was</span> <span class="n">minimized</span>
<span class="n">WINDOWMAXIMIZED</span> <span class="n">Window</span> <span class="n">was</span> <span class="n">maximized</span>
<span class="n">WINDOWRESTORED</span> <span class="n">Window</span> <span class="n">was</span> <span class="n">restored</span>
<span class="n">WINDOWENTER</span> <span class="n">Mouse</span> <span class="n">entered</span> <span class="n">the</span> <span class="n">window</span>
<span class="n">WINDOWLEAVE</span> <span class="n">Mouse</span> <span class="n">left</span> <span class="n">the</span> <span class="n">window</span>
<span class="n">WINDOWFOCUSGAINED</span> <span class="n">Window</span> <span class="n">gained</span> <span class="n">focus</span>
<span class="n">WINDOWFOCUSLOST</span> <span class="n">Window</span> <span class="n">lost</span> <span class="n">focus</span>
<span class="n">WINDOWCLOSE</span> <span class="n">Window</span> <span class="n">was</span> <span class="n">closed</span>
<span class="n">WINDOWTAKEFOCUS</span> <span class="n">Window</span> <span class="n">was</span> <span class="n">offered</span> <span class="n">focus</span>
<span class="n">WINDOWHITTEST</span> <span class="n">Window</span> <span class="n">has</span> <span class="n">a</span> <span class="n">special</span> <span class="n">hit</span> <span class="n">test</span>
</pre></div>
</div>
<p>If SDL version used is less than 2.0.5, the last two events <code class="docutils literal notranslate"><span class="pre">WINDOWTAKEFOCUS</span></code>
and <code class="docutils literal notranslate"><span class="pre">WINDOWHITTEST</span></code> will not work.</p>
<p>Most these window events do not have any attributes, except <code class="docutils literal notranslate"><span class="pre">WINDOWMOVED</span></code>,
<code class="docutils literal notranslate"><span class="pre">WINDOWRESIZED</span></code> and <code class="docutils literal notranslate"><span class="pre">WINDOWSIZECHANGED</span></code>, these have <code class="docutils literal notranslate"><span class="pre">x</span></code> and <code class="docutils literal notranslate"><span class="pre">y</span></code> attributes</p>
<div class="line-block">
<div class="line"><br /></div>
</div>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.pump">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">pump</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.pump" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">internally process pygame event handlers</span></div>
<div class="line"><span class="signature">pump() -> None</span></div>
</div>
<p>For each frame of your game, you will need to make some sort of call to the
event queue. This ensures your program can internally interact with the rest
of the operating system. If you are not using other event functions in your
game, you should call <code class="docutils literal notranslate"><span class="pre">pygame.event.pump()</span></code> to allow pygame to handle
internal actions.</p>
<p>This function is not necessary if your program is consistently processing
events on the queue through the other <a class="tooltip reference internal" href="#module-pygame.event" title=""><code class="xref py py-mod docutils literal notranslate"><span class="pre">pygame.event</span></code><span class="tooltip-content">pygame module for interacting with events and queues</span></a> functions.</p>
<p>There are important things that must be dealt with internally in the event
queue. The main window may need to be repainted or respond to the system. If
you fail to make a call to the event queue for too long, the system may
decide your program has locked up.</p>
<div class="admonition caution">
<p class="admonition-title">Caution</p>
<p>This function should only be called in the thread that initialized <a class="tooltip reference internal" href="display.html#module-pygame.display" title=""><code class="xref py py-mod docutils literal notranslate"><span class="pre">pygame.display</span></code><span class="tooltip-content">pygame module to control the display window and screen</span></a>.</p>
</div>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.get">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">get</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.get" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">get events from the queue</span></div>
<div class="line"><span class="signature">get(eventtype=None) -> Eventlist</span></div>
<div class="line"><span class="signature">get(eventtype=None, pump=True) -> Eventlist</span></div>
<div class="line"><span class="signature">get(eventtype=None, pump=True, exclude=None) -> Eventlist</span></div>
</div>
<p>This will get all the messages and remove them from the queue. If a type or
sequence of types is given only those messages will be removed from the
queue and returned.</p>
<p>If a type or sequence of types is passed in the <code class="docutils literal notranslate"><span class="pre">exclude</span></code> argument
instead, then all only <em>other</em> messages will be removed from the queue. If
an <code class="docutils literal notranslate"><span class="pre">exclude</span></code> parameter is passed, the <code class="docutils literal notranslate"><span class="pre">eventtype</span></code> parameter <em>must</em> be
None.</p>
<p>If you are only taking specific events from the queue, be aware that the
queue could eventually fill up with the events you are not interested.</p>
<p>If <code class="docutils literal notranslate"><span class="pre">pump</span></code> is <code class="docutils literal notranslate"><span class="pre">True</span></code> (the default), then <a class="tooltip reference internal" href="#pygame.event.pump" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.event.pump()</span></code><span class="tooltip-content">internally process pygame event handlers</span></a> will be called.</p>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in pygame 1.9.5: </span>Added <code class="docutils literal notranslate"><span class="pre">pump</span></code> argument</p>
</div>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in pygame 2.0.2: </span>Added <code class="docutils literal notranslate"><span class="pre">exclude</span></code> argument</p>
</div>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.poll">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">poll</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.poll" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">get a single event from the queue</span></div>
<div class="line"><span class="signature">poll() -> EventType instance</span></div>
</div>
<p>Returns a single event from the queue. If the event queue is empty an event
of type <code class="docutils literal notranslate"><span class="pre">pygame.NOEVENT</span></code> will be returned immediately. The returned event
is removed from the queue.</p>
<div class="admonition caution">
<p class="admonition-title">Caution</p>
<p>This function should only be called in the thread that initialized <a class="tooltip reference internal" href="display.html#module-pygame.display" title=""><code class="xref py py-mod docutils literal notranslate"><span class="pre">pygame.display</span></code><span class="tooltip-content">pygame module to control the display window and screen</span></a>.</p>
</div>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.wait">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">wait</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.wait" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">wait for a single event from the queue</span></div>
<div class="line"><span class="signature">wait() -> EventType instance</span></div>
<div class="line"><span class="signature">wait(timeout) -> EventType instance</span></div>
</div>
<p>Returns a single event from the queue. If the queue is empty this function
will wait until one is created. From pygame 2.0.0, if a <code class="docutils literal notranslate"><span class="pre">timeout</span></code> argument
is given, the function will return an event of type <code class="docutils literal notranslate"><span class="pre">pygame.NOEVENT</span></code>
if no events enter the queue in <code class="docutils literal notranslate"><span class="pre">timeout</span></code> milliseconds. The event is removed
from the queue once it has been returned. While the program is waiting it will
sleep in an idle state. This is important for programs that want to share the
system with other applications.</p>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in pygame 2.0.0.dev13: </span>Added <code class="docutils literal notranslate"><span class="pre">timeout</span></code> argument</p>
</div>
<div class="admonition caution">
<p class="admonition-title">Caution</p>
<p>This function should only be called in the thread that initialized <a class="tooltip reference internal" href="display.html#module-pygame.display" title=""><code class="xref py py-mod docutils literal notranslate"><span class="pre">pygame.display</span></code><span class="tooltip-content">pygame module to control the display window and screen</span></a>.</p>
</div>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.peek">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">peek</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.peek" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">test if event types are waiting on the queue</span></div>
<div class="line"><span class="signature">peek(eventtype=None) -> bool</span></div>
<div class="line"><span class="signature">peek(eventtype=None, pump=True) -> bool</span></div>
</div>
<p>Returns <code class="docutils literal notranslate"><span class="pre">True</span></code> if there are any events of the given type waiting on the
queue. If a sequence of event types is passed, this will return <code class="docutils literal notranslate"><span class="pre">True</span></code> if
any of those events are on the queue.</p>
<p>If <code class="docutils literal notranslate"><span class="pre">pump</span></code> is <code class="docutils literal notranslate"><span class="pre">True</span></code> (the default), then <a class="tooltip reference internal" href="#pygame.event.pump" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.event.pump()</span></code><span class="tooltip-content">internally process pygame event handlers</span></a> will be called.</p>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in pygame 1.9.5: </span>Added <code class="docutils literal notranslate"><span class="pre">pump</span></code> argument</p>
</div>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.clear">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">clear</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.clear" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">remove all events from the queue</span></div>
<div class="line"><span class="signature">clear(eventtype=None) -> None</span></div>
<div class="line"><span class="signature">clear(eventtype=None, pump=True) -> None</span></div>
</div>
<p>Removes all events from the queue. If <code class="docutils literal notranslate"><span class="pre">eventtype</span></code> is given, removes the given event
or sequence of events. This has the same effect as <a class="tooltip reference internal" href="#pygame.event.get" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.event.get()</span></code><span class="tooltip-content">get events from the queue</span></a> except <code class="docutils literal notranslate"><span class="pre">None</span></code>
is returned. It can be slightly more efficient when clearing a full event queue.</p>
<p>If <code class="docutils literal notranslate"><span class="pre">pump</span></code> is <code class="docutils literal notranslate"><span class="pre">True</span></code> (the default), then <a class="tooltip reference internal" href="#pygame.event.pump" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.event.pump()</span></code><span class="tooltip-content">internally process pygame event handlers</span></a> will be called.</p>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in pygame 1.9.5: </span>Added <code class="docutils literal notranslate"><span class="pre">pump</span></code> argument</p>
</div>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.event_name">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">event_name</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.event_name" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">get the string name from an event id</span></div>
<div class="line"><span class="signature">event_name(type) -> string</span></div>
</div>
<p>Returns a string representing the name (in CapWords style) of the given
event type.</p>
<p>"UserEvent" is returned for all values in the user event id range.
"Unknown" is returned when the event type does not exist.</p>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.set_blocked">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">set_blocked</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.set_blocked" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">control which events are allowed on the queue</span></div>
<div class="line"><span class="signature">set_blocked(type) -> None</span></div>
<div class="line"><span class="signature">set_blocked(typelist) -> None</span></div>
<div class="line"><span class="signature">set_blocked(None) -> None</span></div>
</div>
<p>The given event types are not allowed to appear on the event queue. By
default all events can be placed on the queue. It is safe to disable an
event type multiple times.</p>
<p>If <code class="docutils literal notranslate"><span class="pre">None</span></code> is passed as the argument, ALL of the event types are blocked
from being placed on the queue.</p>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.set_allowed">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">set_allowed</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.set_allowed" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">control which events are allowed on the queue</span></div>
<div class="line"><span class="signature">set_allowed(type) -> None</span></div>
<div class="line"><span class="signature">set_allowed(typelist) -> None</span></div>
<div class="line"><span class="signature">set_allowed(None) -> None</span></div>
</div>
<p>The given event types are allowed to appear on the event queue. By default,
all event types can be placed on the queue. It is safe to enable an event
type multiple times.</p>
<p>If <code class="docutils literal notranslate"><span class="pre">None</span></code> is passed as the argument, ALL of the event types are allowed
to be placed on the queue.</p>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.get_blocked">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">get_blocked</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.get_blocked" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">test if a type of event is blocked from the queue</span></div>
<div class="line"><span class="signature">get_blocked(type) -> bool</span></div>
<div class="line"><span class="signature">get_blocked(typelist) -> bool</span></div>
</div>
<p>Returns <code class="docutils literal notranslate"><span class="pre">True</span></code> if the given event type is blocked from the queue. If a
sequence of event types is passed, this will return <code class="docutils literal notranslate"><span class="pre">True</span></code> if any of those
event types are blocked.</p>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.set_grab">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">set_grab</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.set_grab" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">control the sharing of input devices with other applications</span></div>
<div class="line"><span class="signature">set_grab(bool) -> None</span></div>
</div>
<p>When your program runs in a windowed environment, it will share the mouse
and keyboard devices with other applications that have focus. If your
program sets the event grab to <code class="docutils literal notranslate"><span class="pre">True</span></code>, it will lock all input into your
program.</p>
<p>It is best to not always grab the input, since it prevents the user from
doing other things on their system.</p>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.get_grab">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">get_grab</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.get_grab" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">test if the program is sharing input devices</span></div>
<div class="line"><span class="signature">get_grab() -> bool</span></div>
</div>
<p>Returns <code class="docutils literal notranslate"><span class="pre">True</span></code> when the input events are grabbed for this application.</p>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.post">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">post</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.post" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">place a new event on the queue</span></div>
<div class="line"><span class="signature">post(Event) -> bool</span></div>
</div>
<p>Places the given event at the end of the event queue.</p>
<p>This is usually used for placing custom events on the event queue.
Any type of event can be posted, and the events posted can have any attributes.</p>
<p>This returns a boolean on whether the event was posted or not. Blocked events
cannot be posted, and this function returns <code class="docutils literal notranslate"><span class="pre">False</span></code> if you try to post them.</p>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in pygame 2.0.1: </span>returns a boolean, previously returned <code class="docutils literal notranslate"><span class="pre">None</span></code></p>
</div>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.custom_type">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">custom_type</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.custom_type" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">make custom user event type</span></div>
<div class="line"><span class="signature">custom_type() -> int</span></div>
</div>
<p>Reserves a <code class="docutils literal notranslate"><span class="pre">pygame.USEREVENT</span></code> for a custom use.</p>
<p>If too many events are made a <a class="tooltip reference internal" href="pygame.html#pygame.error" title=""><code class="xref py py-exc docutils literal notranslate"><span class="pre">pygame.error</span></code><span class="tooltip-content">standard pygame exception</span></a> is raised.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 2.0.0.dev3.</span></p>
</div>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.event.Event">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">Event</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.event.Event" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">create a new event object</span></div>
<div class="line"><span class="signature">Event(type, dict) -> EventType instance</span></div>
<div class="line"><span class="signature">Event(type, **attributes) -> EventType instance</span></div>
</div>
<p>Creates a new event with the given type and attributes. The attributes can
come from a dictionary argument with string keys or from keyword arguments.</p>
</dd></dl>
<dl class="py class definition">
<dt class="sig sig-object py title" id="pygame.event.EventType">
<span class="sig-prename descclassname"><span class="pre">pygame.event.</span></span><span class="sig-name descname"><span class="pre">EventType</span></span><a class="headerlink" href="#pygame.event.EventType" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">pygame object for representing events</span></div>
</div>
<table class="toc docutils align-default">
<colgroup>
<col style="width: 47%" />
<col style="width: 1%" />
<col style="width: 51%" />
</colgroup>
<tbody>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.EventType.type">pygame.event.EventType.type</a></div>
</td>
<td>—</td>
<td>event type identifier.</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="event.html#pygame.event.EventType.__dict__">pygame.event.EventType.__dict__</a></div>
</td>
<td>—</td>
<td>event attribute dictionary</td>
</tr>
</tbody>
</table>
<p>A pygame object that represents an event. User event instances are created
with an <a class="tooltip reference internal" href="#pygame.event.Event" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.event.Event()</span></code><span class="tooltip-content">create a new event object</span></a> function call. The <code class="docutils literal notranslate"><span class="pre">EventType</span></code> type
is not directly callable. <code class="docutils literal notranslate"><span class="pre">EventType</span></code> instances support attribute
assignment and deletion.</p>
<dl class="py attribute definition">
<dt class="sig sig-object py title" id="pygame.event.EventType.type">
<span class="sig-name descname"><span class="pre">type</span></span><a class="headerlink" href="#pygame.event.EventType.type" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">event type identifier.</span></div>
<div class="line"><span class="signature">type -> int</span></div>
</div>
<p>Read-only. The event type identifier. For user created event
objects, this is the <code class="docutils literal notranslate"><span class="pre">type</span></code> argument passed to
<a class="tooltip reference internal" href="#pygame.event.Event" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.event.Event()</span></code><span class="tooltip-content">create a new event object</span></a>.</p>
<p>For example, some predefined event identifiers are <code class="docutils literal notranslate"><span class="pre">QUIT</span></code> and
<code class="docutils literal notranslate"><span class="pre">MOUSEMOTION</span></code>.</p>
</dd></dl>
<dl class="py attribute definition">
<dt class="sig sig-object py title" id="pygame.event.EventType.__dict__">
<span class="sig-name descname"><span class="pre">__dict__</span></span><a class="headerlink" href="#pygame.event.EventType.__dict__" title="Permalink to this definition">¶</a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">event attribute dictionary</span></div>
<div class="line"><span class="signature">__dict__ -> dict</span></div>
</div>
<p>Read-only. The event type specific attributes of an event. The
<code class="docutils literal notranslate"><span class="pre">dict</span></code> attribute is a synonym for backward compatibility.</p>
<p>For example, the attributes of a <code class="docutils literal notranslate"><span class="pre">KEYDOWN</span></code> event would be <code class="docutils literal notranslate"><span class="pre">unicode</span></code>,
<code class="docutils literal notranslate"><span class="pre">key</span></code>, and <code class="docutils literal notranslate"><span class="pre">mod</span></code></p>
</dd></dl>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 1.9.2: </span>Mutable attributes.</p>
</div>
</dd></dl>
</dd></dl>
</section>
<br /><br />
<hr />
<a href="https://github.com/pygame/pygame/edit/main/docs/reST/ref/event.rst" rel="nofollow">Edit on GitHub</a>
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