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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `xdg_foreign` mod in crate `wayland_protocols`."><meta name="keywords" content="rust, rustlang, rust-lang, xdg_foreign"><title>wayland_protocols::unstable::xdg_foreign - Rust</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><script src="../../../storage.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="shortcut icon" href="../../../favicon.ico"><style type="text/css">#crate-search{background-image:url("../../../down-arrow.svg");}</style></head><body class="rustdoc mod"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">&#9776;</div><a href='../../../wayland_protocols/index.html'><div class='logo-container'><img src='../../../rust-logo.png' alt='logo'></div></a><p class='location'>Module xdg_foreign</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#modules">Modules</a></li></ul></div><p class='location'><a href='../../index.html'>wayland_protocols</a>::<wbr><a href='../index.html'>unstable</a></p><script>window.sidebarCurrent = {name: 'xdg_foreign', ty: 'mod', relpath: '../'};</script><script defer src="../sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../../../settings.html"><img src="../../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>&#x2212;</span>]</a></span><a class='srclink' href='../../../src/wayland_protocols/unstable.rs.html#322-352' title='goto source code'>[src]</a></span><span class='in-band'>Module <a href='../../index.html'>wayland_protocols</a>::<wbr><a href='../index.html'>unstable</a>::<wbr><a class="mod" href=''>xdg_foreign</a></span></h1><div class='docblock'><p>Protocol for exporting xdg surface handles</p>
<p>This protocol specifies a way for making it possible to reference a surface
of a different client. With such a reference, a client can, by using the
interfaces provided by this protocol, manipulate the relationship between
its own surfaces and the surface of some other client. For example, stack
some of its own surface above the other clients surface.</p>
<p>In order for a client A to get a reference of a surface of client B, client
B must first export its surface using xdg_exporter.export. Upon doing this,
client B will receive a handle (a unique string) that it may share with
client A in some way (for example D-Bus). After client A has received the
handle from client B, it may use xdg_importer.import to create a reference
to the surface client B just exported. See the corresponding requests for
details.</p>
<p>A possible use case for this is out-of-process dialogs. For example when a
sandboxed client without file system access needs the user to select a file
on the file system, given sandbox environment support, it can export its
surface, passing the exported surface handle to an unsandboxed process that
can show a file browser dialog and stack it above the sandboxed client's
surface.</p>
</div><h2 id='modules' class='section-header'><a href="#modules">Modules</a></h2>
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