19 lines
5.7 KiB
HTML
19 lines
5.7 KiB
HTML
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>The Be Book - Special Topics - The Keyboard</title><link rel="stylesheet" href="be_book.css" type="text/css" media="all" /><link rel="shortcut icon" type="image/vnd.microsoft.icon" href="./images/favicon.ico" /><!--[if IE]>
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<link rel="stylesheet" type="text/css" href="be_book_ie.css" />
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<![endif]--><meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /><meta name="keywords" content="Access, BeOS, BeBook, API" /><link rel="start" href="index.html" title="The Be Book" /><link rel="up" href="TheKeyboard.html" title="The Keyboard" /><link rel="prev" href="TheKeyboard_KeyboardMessages.html" title="Keyboard Messages" /><link rel="next" href="TheKeyboard_KeyStates.html" title="Key States" /></head><body><div id="header"><div id="headerT"><div id="headerTL"><a accesskey="p" href="TheKeyboard_KeyboardMessages.html" title="Keyboard Messages"><img src="./images/navigation/prev.png" alt="Prev" /></a> <a accesskey="u" href="TheKeyboard.html" title="The Keyboard"><img src="./images/navigation/up.png" alt="Up" /></a> <a accesskey="n" href="TheKeyboard_KeyStates.html" title="Key States"><img src="./images/navigation/next.png" alt="Next" /></a></div><div id="headerTR"><div id="navigpeople"><a href="http://www.haiku-os.org"><img src="./images/People_24.png" alt="haiku-os.org" title="Visit The Haiku Website" /></a></div><div class="navighome" title="Home"><a accesskey="h" href="index.html"><img src="./images/navigation/home.png" alt="Home" /></a></div><div class="navigboxed" id="navigindex"><a accesskey="i" href="ClassIndex.html" title="Index">I</a></div><div class="navigboxed" id="naviglang" title="English">en</div></div><div id="headerTC">The Be Book - Special Topics - The Keyboard</div></div><div id="headerB">Prev: <a href="TheKeyboard_KeyboardMessages.html">Keyboard Messages</a> Up: <a href="TheKeyboard.html">The Keyboard</a> Next: <a href="TheKeyboard_KeyStates.html">Key States</a></div><hr /></div><div class="section"><div xmlns="" xmlns:d="http://docbook.org/ns/docbook" class="titlepage"><div><div xmlns:d="http://docbook.org/ns/docbook"><h2 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="TheKeyboard_KeyCodes"></a>Key Codes</h2></div></div></div><p>Each key on a computer's keyboard is assigned a numerical code which is
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reported as the <code class="varname">key</code> field in the
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<code class="constant">B_KEY_DOWN</code> or <code class="constant">B_UNMATCHED_KEY_DOWN</code>
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message. Likewise, the <code class="varname">key</code> field of
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the <code class="constant">B_KEY_UP</code> or <code class="constant">B_UNMATCHED_KEY_UP</code>
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message indicates which key was released.</p><p>The <span class="keycap">Print Screen</span> key is trapped by BeOS; it doesn't generate a key down
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message, but it does generate a key up.</p><p>The following illustration shows the keycodes for most of the keys on
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standard keyboards.</p><div class="mediaobject"><img src="./images/TheKeyboard/keymap.png" alt="Info Icon" /></div><p>Some keyboards vary slightly from this; however, even if keys are in
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different locations than those depicted here, they'll still have the same
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key code values.</p><p>Note that the <span class="keycap">Option</span> key on Macintosh
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keyboards and the <span class="keycap">Windows</span> key on
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many PC keyboards share the same keycode.</p><p>Some other keys that don't appear on this diagram include:</p><div class="informaltable"><table border="1"><colgroup><col /><col /></colgroup><thead><tr><th>Key</th><th>Keycode</th></tr></thead><tbody><tr><td>System Request</td><td>0x7E</td></tr><tr><td>Break</td><td>0x7F</td></tr><tr><td>Euro</td><td>0x69</td></tr><tr><td>Keypad</td><td>0x6A</td></tr><tr><td>Mac Power Key</td><td>0x6B</td></tr></tbody></table></div></div><div id="footer"><hr /><div id="footerT">Prev: <a href="TheKeyboard_KeyboardMessages.html">Keyboard Messages</a> Up: <a href="TheKeyboard.html">The Keyboard</a> Next: <a href="TheKeyboard_KeyStates.html">Key States</a> </div><div id="footerB"><div id="footerBL"><a href="TheKeyboard_KeyboardMessages.html" title="Keyboard Messages"><img src="./images/navigation/prev.png" alt="Prev" /></a> <a href="TheKeyboard.html" title="The Keyboard"><img src="./images/navigation/up.png" alt="Up" /></a> <a href="TheKeyboard_KeyStates.html" title="Key States"><img src="./images/navigation/next.png" alt="Next" /></a></div><div id="footerBR"><div><a href="http://www.haiku-os.org"><img src="./images/People_24.png" alt="haiku-os.org" title="Visit The Haiku Website" /></a></div><div class="navighome" title="Home"><a accesskey="h" href="index.html"><img src="./images/navigation/home.png" alt="Home" /></a></div></div><div id="footerBC"><a href="http://www.access-company.com/home.html" title="ACCESS Co."><img alt="Access Company" src="./images/access_logo.png" /></a></div></div></div><div id="licenseFooter"><div id="licenseFooterBL"><a rel="license" href="http://creativecommons.org/licenses/by-nc-nd/3.0/" title="Creative Commons License"><img alt="Creative Commons License" style="border-width:0" src="https://licensebuttons.net/l/by-nc-nd/3.0/88x31.png" /></a></div><div id="licenseFooterBR"><a href="./LegalNotice.html">Legal Notice</a></div><div id="licenseFooterBC"><span id="licenseText">This work is licensed under a
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<a rel="license" href="http://creativecommons.org/licenses/by-nc-nd/3.0/">Creative
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Commons Attribution-Non commercial-No Derivative Works 3.0 License</a>.</span></div></div></body></html>
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