40 lines
6.0 KiB
HTML
40 lines
6.0 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 - System Overview - The Interface Kit</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="TheInterfaceKit_Overview.html" title="The Interface Kit" /><link rel="prev" href="BRegion_Overview.html" title="BRegion" /><link rel="next" href="BScrollBar_Overview.html" title="BScrollBar" /></head><body><div id="header"><div id="headerT"><div id="headerTL"><a accesskey="p" href="BRegion_Overview.html" title="BRegion"><img src="./images/navigation/prev.png" alt="Prev" /></a> <a accesskey="u" href="TheInterfaceKit_Overview.html" title="The Interface Kit"><img src="./images/navigation/up.png" alt="Up" /></a> <a accesskey="n" href="BScrollBar_Overview.html" title="BScrollBar"><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 - System Overview - The Interface Kit</div></div><div id="headerB">Prev: <a href="BRegion_Overview.html">BRegion</a> Up: <a href="TheInterfaceKit_Overview.html">The Interface Kit</a> Next: <a href="BScrollBar_Overview.html">BScrollBar</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="BScreen_Overview"></a>BScreen</h2></div></div></div><a id="id555457" class="indexterm"></a><p>
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A <a class="link" href="BScreen.html" title="BScreen"><code class="classname">BScreen</code></a>
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object represents a single display screen that's connected to
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the computer. With a
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<a class="link" href="BScreen.html" title="BScreen"><code class="classname">BScreen</code></a> object you can…
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</p><ul class="itemizedlist"><li><p>
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Get and set the screen's size and pixel depth.
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</p></li><li><p>
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Get the screen's color map.
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</p></li><li><p>
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Make a screen shot.
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</p></li><li><p>
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Set the desktop color.
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</p></li><li><p>
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Synchronize your code with the screen's retrace event.
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</p></li></ul><p>
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You can't copy a <a class="link" href="BScreen.html" title="BScreen"><code class="classname">BScreen</code></a>
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object—the copy constructor and assignment
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operators are private.
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</p><div class="section"><div xmlns="" xmlns:d="http://docbook.org/ns/docbook" class="titlepage"><div><hr /><div xmlns:d="http://docbook.org/ns/docbook"><h3 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="id555536"></a>Multiple Screens</h3></div></div></div><p>
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Although, the BeOS currently only supports a single screen, in the future
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it will let the user hook up multiple screens. One of the screens, the
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main screen, will have the origin of the screen coordinate system at its
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left top corner. Other screens will be located elsewhere in the same
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coordinate system. If there's just one screen, it's the main screen.
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</p><p>
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A <a class="link" href="BScreen.html" title="BScreen"><code class="classname">BScreen</code></a>
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object represents one screen. An application can have more than
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one object referring to the same screen.
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</p><p>
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When multiple screens are supported, a screen_id identifier will be
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assigned to each one. Currently, <code class="constant">B_MAIN_SCREEN_ID</code> is the only identifier.
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</p></div></div><div id="footer"><hr /><div id="footerT">Prev: <a href="BRegion_Overview.html">BRegion</a> Up: <a href="TheInterfaceKit_Overview.html">The Interface Kit</a> Next: <a href="BScrollBar_Overview.html">BScrollBar</a> </div><div id="footerB"><div id="footerBL"><a href="BRegion_Overview.html" title="BRegion"><img src="./images/navigation/prev.png" alt="Prev" /></a> <a href="TheInterfaceKit_Overview.html" title="The Interface Kit"><img src="./images/navigation/up.png" alt="Up" /></a> <a href="BScrollBar_Overview.html" title="BScrollBar"><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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