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<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="API documentation for the Rust `guess_format` fn in crate `image`."><metaname="keywords"content="rust, rustlang, rust-lang, guess_format"><title>image::guess_format - Rust</title><linkrel="stylesheet"type="text/css"href="../normalize.css"><linkrel="stylesheet"type="text/css"href="../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../dark.css"><linkrel="stylesheet"type="text/css"href="../light.css"id="themeStyle"><scriptsrc="../storage.js"></script><noscript><linkrel="stylesheet"href="../noscript.css"></noscript><linkrel="shortcut icon"href="../favicon.ico"><styletype="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><bodyclass="rustdoc fn"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="sidebar"><divclass="sidebar-menu">☰</div><ahref='../image/index.html'><divclass='logo-container'><imgsrc='../rust-logo.png'alt='logo'></div></a><divclass="sidebar-elems"><pclass='location'><ahref='index.html'>image</a></p><script>window.sidebarCurrent={name:'guess_format',ty:'fn',relpath:''};</script><scriptdefersrc="sidebar-items.js"></script></div></nav><divclass="theme-picker"><buttonid="theme-picker"aria-label="Pick another theme!"><imgsrc="../brush.svg"width="18"alt="Pick another theme!"></button><divid="theme-choices"></div></div><scriptsrc="../theme.js"></script><navclass="sub"><formclass="search-form js-only"><divclass="search-container"><div><selectid="crate-search"><optionvalue="All crates">All crates</option></select><inputclass="search-input"name="search"autocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"></div><aid="settings-menu"href="../settings.html"><imgsrc="../wheel.svg"width="18"alt="Change settings"></a></div></form></nav><sectionid="main"class="content"><h1class='fqn'><spanclass='out-of-band'><spanid='render-detail'><aid="toggle-all-docs"href="javascript:void(0)"title="collapse all docs">[<spanclass='inner'>−</span>]</a></span><aclass='srclink'href='../src/image/dynimage.rs.html#898-907'title='goto source code'>[src]</a></span><spanclass='in-band'>Function <ahref='index.html'>image</a>::<wbr><aclass="fn"href=''>guess_format</a></span></h1><preclass='rust fn'>pub fn guess_format(buffer: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>) -><aclass="type"href="../image/type.ImageResult.html"title="type image::ImageResult">ImageResult</a><<aclass="enum"href="../image/enum.ImageFormat.html"title="enum image::ImageFormat">ImageFormat</a>></pre><divclass='docblock'><p>Guess image format from memory block</p>
<p>Makes an educated guess about the image format based on the Magic Bytes at the beginning.
TGA is not supported by this function.
This is not to be trusted on the validity of the whole memory block</p>
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