<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- gpl.qdoc --> <title>GNU General Public License (GPL) | Qt 5.9</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td ><a href="index.html">Qt 5.9</a></td><td >GNU General Public License (GPL)</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#gpl-version-3">GPL version 3</a></li> </ul> </div> <div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">GNU General Public License (GPL)</h1> <span class="subtitle"></span> <!-- $$$gpl.html-description --> <div class="descr"> <a name="details"></a> <p>Qt is available under the GNU General Public License version 3.</p> <p>The Qt Toolkit is Copyright (C) 2016 The Qt Company Ltd. and other contributors.<br /> Contact: <a href="http://www.qt.io/licensing/">http://www.qt.io/licensing/</a></p> <p>Reference:</p> <ul> <li><a href="http://www.gnu.org/licenses/gpl.html">GNU General Public License (GPL), version 3</a></li> </ul> <a name="gpl-version-3"></a> <h2 id="gpl-version-3">GPL version 3</h2> <pre class="cpp"> You may use<span class="operator">,</span> distribute and copy the <span class="type">Qt</span> GUI Toolkit under the terms of GNU General Public License version <span class="number">3</span><span class="operator">,</span> which is displayed below<span class="operator">.</span> GNU GENERAL PUBLIC LICENSE Version <span class="number">3</span><span class="operator">,</span> <span class="number">29</span> June <span class="number">2007</span> Copyright (C) <span class="number">2007</span> Free Software Foundation<span class="operator">,</span> Inc<span class="operator">.</span> <span class="operator"><</span>http:<span class="comment">//fsf.org/></span> Everyone is permitted to copy and distribute verbatim copies of <span class="keyword">this</span> license document<span class="operator">,</span> but changing it is <span class="keyword">not</span> allowed<span class="operator">.</span> Preamble The GNU General Public License is a free<span class="operator">,</span> copyleft license <span class="keyword">for</span> software and other kinds of works<span class="operator">.</span> The licenses <span class="keyword">for</span> most software and other practical works are designed to take away your freedom to share and change the works<span class="operator">.</span> By contrast<span class="operator">,</span> the GNU General Public License is intended to guarantee your freedom to share and change all versions of a program<span class="operator">-</span><span class="operator">-</span>to make sure it remains free software <span class="keyword">for</span> all its users<span class="operator">.</span> We<span class="operator">,</span> the Free Software Foundation<span class="operator">,</span> use the GNU General Public License <span class="keyword">for</span> most of our software; it applies also to any other work released <span class="keyword">this</span> way by its authors<span class="operator">.</span> You can apply it to your programs<span class="operator">,</span> too<span class="operator">.</span> When we speak of free software<span class="operator">,</span> we are referring to freedom<span class="operator">,</span> <span class="keyword">not</span> price<span class="operator">.</span> Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge <span class="keyword">for</span> them <span class="keyword">if</span> you wish)<span class="operator">,</span> that you receive source code <span class="keyword">or</span> can get it <span class="keyword">if</span> you want it<span class="operator">,</span> that you can change the software <span class="keyword">or</span> use pieces of it in <span class="keyword">new</span> free programs<span class="operator">,</span> and that you know you can <span class="keyword">do</span> these things<span class="operator">.</span> To protect your rights<span class="operator">,</span> we need to prevent others from denying you these rights <span class="keyword">or</span> asking you to surrender the rights<span class="operator">.</span> Therefore<span class="operator">,</span> you have certain responsibilities <span class="keyword">if</span> you distribute copies of the software<span class="operator">,</span> <span class="keyword">or</span> <span class="keyword">if</span> you modify it: responsibilities to respect the freedom of others<span class="operator">.</span> For example<span class="operator">,</span> <span class="keyword">if</span> you distribute copies of such a program<span class="operator">,</span> whether gratis <span class="keyword">or</span> <span class="keyword">for</span> a fee<span class="operator">,</span> you must pass on to the recipients the same freedoms that you received<span class="operator">.</span> You must make sure that they<span class="operator">,</span> too<span class="operator">,</span> receive <span class="keyword">or</span> can get the source code<span class="operator">.</span> And you must show them these terms so they know their rights<span class="operator">.</span> Developers that use the GNU GPL protect your rights with two steps: (<span class="number">1</span>) assert copyright on the software<span class="operator">,</span> and (<span class="number">2</span>) offer you <span class="keyword">this</span> License giving you legal permission to copy<span class="operator">,</span> distribute and<span class="operator">/</span><span class="keyword">or</span> modify it<span class="operator">.</span> For the developers<span class="char">' and authors'</span> protection<span class="operator">,</span> the GPL clearly explains that there is no warranty <span class="keyword">for</span> <span class="keyword">this</span> free software<span class="operator">.</span> For both users<span class="char">' and authors'</span> sake<span class="operator">,</span> the GPL requires that modified versions be marked as changed<span class="operator">,</span> so that their problems will <span class="keyword">not</span> be attributed erroneously to authors of previous versions<span class="operator">.</span> Some devices are designed to deny users access to install <span class="keyword">or</span> run modified versions of the software inside them<span class="operator">,</span> although the manufacturer can <span class="keyword">do</span> so<span class="operator">.</span> This is fundamentally incompatible with the aim of protecting users<span class="char">' freedom to change the software. The systematic pattern of such abuse occurs in the area of products for individuals to use, which is precisely where it is most unacceptable. Therefore, we have designed this version of the GPL to prohibit the practice for those products. If such problems arise substantially in other domains, we stand ready to extend this provision to those domains in future versions of the GPL, as needed to protect the freedom of users. Finally, every program is threatened constantly by software patents. States should not allow patents to restrict development and use of software on general-purpose computers, but in those that do, we wish to avoid the special danger that patents applied to a free program could make it effectively proprietary. To prevent this, the GPL assures that patents cannot be used to render the program non-free. The precise terms and conditions for copying, distribution and modification follow. TERMS AND CONDITIONS 0. Definitions. "This License" refers to version 3 of the GNU General Public License. "Copyright" also means copyright-like laws that apply to other kinds of works, such as semiconductor masks. "The Program" refers to any copyrightable work licensed under this License. Each licensee is addressed as "you". "Licensees" and "recipients" may be individuals or organizations. To "modify" a work means to copy from or adapt all or part of the work in a fashion requiring copyright permission, other than the making of an exact copy. The resulting work is called a "modified version" of the earlier work or a work "based on" the earlier work. A "covered work" means either the unmodified Program or a work based on the Program. To "propagate" a work means to do anything with it that, without permission, would make you directly or secondarily liable for infringement under applicable copyright law, except executing it on a computer or modifying a private copy. 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The "source code" for a work means the preferred form of the work for making modifications to it. "Object code" means any non-source form of a work. A "Standard Interface" means an interface that either is an official standard defined by a recognized standards body, or, in the case of interfaces specified for a particular programming language, one that is widely used among developers working in that language. The "System Libraries" of an executable work include anything, other than the work as a whole, that (a) is included in the normal form of packaging a Major Component, but which is not part of that Major Component, and (b) serves only to enable use of the work with that Major Component, or to implement a Standard Interface for which an implementation is available to the public in source code form. 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No covered work shall be deemed part of an effective technological measure under any applicable law fulfilling obligations under article 11 of the WIPO copyright treaty adopted on 20 December 1996, or similar laws prohibiting or restricting circumvention of such measures. When you convey a covered work, you waive any legal power to forbid circumvention of technological measures to the extent such circumvention is effected by exercising rights under this License with respect to the covered work, and you disclaim any intention to limit operation or modification of the work as a means of enforcing, against the work'</span>s users<span class="operator">,</span> your <span class="keyword">or</span> third parties<span class="char">' legal rights to forbid circumvention of technological measures. 4. Conveying Verbatim Copies. You may convey verbatim copies of the Program'</span>s source code as you receive it<span class="operator">,</span> in any medium<span class="operator">,</span> provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice; keep intact all notices stating that <span class="keyword">this</span> License and any non<span class="operator">-</span>permissive terms added in accord with section <span class="number">7</span> apply to the code; keep intact all notices of the absence of any warranty; and give all recipients a copy of <span class="keyword">this</span> License along with the Program<span class="operator">.</span> You may charge any price <span class="keyword">or</span> no price <span class="keyword">for</span> each copy that you convey<span class="operator">,</span> and you may offer support <span class="keyword">or</span> warranty protection <span class="keyword">for</span> a fee<span class="operator">.</span> <span class="number">5.</span> Conveying Modified Source Versions<span class="operator">.</span> You may convey a work based on the Program<span class="operator">,</span> <span class="keyword">or</span> the modifications to produce it from the Program<span class="operator">,</span> in the form of source code under the terms of section <span class="number">4</span><span class="operator">,</span> provided that you also meet all of these conditions: a) The work must carry prominent notices stating that you modified it<span class="operator">,</span> and giving a relevant date<span class="operator">.</span> b) The work must carry prominent notices stating that it is released under <span class="keyword">this</span> License and any conditions added under section <span class="number">7.</span> This requirement modifies the requirement in section <span class="number">4</span> to <span class="string">"keep intact all notices"</span><span class="operator">.</span> c) You must license the entire work<span class="operator">,</span> as a whole<span class="operator">,</span> under <span class="keyword">this</span> License to anyone who comes into possession of a copy<span class="operator">.</span> This License will therefore apply<span class="operator">,</span> along with any applicable section <span class="number">7</span> additional terms<span class="operator">,</span> to the whole of the work<span class="operator">,</span> and all its parts<span class="operator">,</span> regardless of how they are packaged<span class="operator">.</span> This License gives no permission to license the work in any other way<span class="operator">,</span> but it does <span class="keyword">not</span> invalidate such permission <span class="keyword">if</span> you have separately received it<span class="operator">.</span> d) If the work has interactive user interfaces<span class="operator">,</span> each must display Appropriate Legal Notices; however<span class="operator">,</span> <span class="keyword">if</span> the Program has interactive interfaces that <span class="keyword">do</span> <span class="keyword">not</span> display Appropriate Legal Notices<span class="operator">,</span> your work need <span class="keyword">not</span> make them <span class="keyword">do</span> so<span class="operator">.</span> A compilation of a covered work with other separate and independent works<span class="operator">,</span> which are <span class="keyword">not</span> by their nature extensions of the covered work<span class="operator">,</span> and which are <span class="keyword">not</span> combined with it such as to form a larger program<span class="operator">,</span> in <span class="keyword">or</span> on a volume of a storage <span class="keyword">or</span> distribution medium<span class="operator">,</span> is called an <span class="string">"aggregate"</span> <span class="keyword">if</span> the compilation and its resulting copyright are <span class="keyword">not</span> used to limit the access <span class="keyword">or</span> legal rights of the compilation<span class="char">'s users beyond what the individual works permit. Inclusion of a covered work in an aggregate does not cause this License to apply to the other parts of the aggregate. 6. Conveying Non-Source Forms. You may convey a covered work in object code form under the terms of sections 4 and 5, provided that you also convey the machine-readable Corresponding Source under the terms of this License, in one of these ways: a) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by the Corresponding Source fixed on a durable physical medium customarily used for software interchange. b) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by a written offer, valid for at least three years and valid for as long as you offer spare parts or customer support for that product model, to give anyone who possesses the object code either (1) a copy of the Corresponding Source for all the software in the product that is covered by this License, on a durable physical medium customarily used for software interchange, for a price no more than your reasonable cost of physically performing this conveying of source, or (2) access to copy the Corresponding Source from a network server at no charge. c) Convey individual copies of the object code with a copy of the written offer to provide the Corresponding Source. This alternative is allowed only occasionally and noncommercially, and only if you received the object code with such an offer, in accord with subsection 6b. d) Convey the object code by offering access from a designated place (gratis or for a charge), and offer equivalent access to the Corresponding Source in the same way through the same place at no further charge. You need not require recipients to copy the Corresponding Source along with the object code. If the place to copy the object code is a network server, the Corresponding Source may be on a different server (operated by you or a third party) that supports equivalent copying facilities, provided you maintain clear directions next to the object code saying where to find the Corresponding Source. Regardless of what server hosts the Corresponding Source, you remain obligated to ensure that it is available for as long as needed to satisfy these requirements. e) Convey the object code using peer-to-peer transmission, provided you inform other peers where the object code and Corresponding Source of the work are being offered to the general public at no charge under subsection 6d. A separable portion of the object code, whose source code is excluded from the Corresponding Source as a System Library, need not be included in conveying the object code work. A "User Product" is either (1) a "consumer product", which means any tangible personal property which is normally used for personal, family, or household purposes, or (2) anything designed or sold for incorporation into a dwelling. In determining whether a product is a consumer product, doubtful cases shall be resolved in favor of coverage. For a particular product received by a particular user, "normally used" refers to a typical or common use of that class of product, regardless of the status of the particular user or of the way in which the particular user actually uses, or expects or is expected to use, the product. A product is a consumer product regardless of whether the product has substantial commercial, industrial or non-consumer uses, unless such uses represent the only significant mode of use of the product. "Installation Information" for a User Product means any methods, procedures, authorization keys, or other information required to install and execute modified versions of a covered work in that User Product from a modified version of its Corresponding Source. The information must suffice to ensure that the continued functioning of the modified object code is in no case prevented or interfered with solely because modification has been made. If you convey an object code work under this section in, or with, or specifically for use in, a User Product, and the conveying occurs as part of a transaction in which the right of possession and use of the User Product is transferred to the recipient in perpetuity or for a fixed term (regardless of how the transaction is characterized), the Corresponding Source conveyed under this section must be accompanied by the Installation Information. But this requirement does not apply if neither you nor any third party retains the ability to install modified object code on the User Product (for example, the work has been installed in ROM). The requirement to provide Installation Information does not include a requirement to continue to provide support service, warranty, or updates for a work that has been modified or installed by the recipient, or for the User Product in which it has been modified or installed. Access to a network may be denied when the modification itself materially and adversely affects the operation of the network or violates the rules and protocols for communication across the network. Corresponding Source conveyed, and Installation Information provided, in accord with this section must be in a format that is publicly documented (and with an implementation available to the public in source code form), and must require no special password or key for unpacking, reading or copying. 7. Additional Terms. "Additional permissions" are terms that supplement the terms of this License by making exceptions from one or more of its conditions. Additional permissions that are applicable to the entire Program shall be treated as though they were included in this License, to the extent that they are valid under applicable law. If additional permissions apply only to part of the Program, that part may be used separately under those permissions, but the entire Program remains governed by this License without regard to the additional permissions. When you convey a copy of a covered work, you may at your option remove any additional permissions from that copy, or from any part of it. (Additional permissions may be written to require their own removal in certain cases when you modify the work.) You may place additional permissions on material, added by you to a covered work, for which you have or can give appropriate copyright permission. Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms: a) Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16 of this License; or b) Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it; or c) Prohibiting misrepresentation of the origin of that material, or requiring that modified versions of such material be marked in reasonable ways as different from the original version; or d) Limiting the use for publicity purposes of names of licensors or authors of the material; or e) Declining to grant rights under trademark law for use of some trade names, trademarks, or service marks; or f) Requiring indemnification of licensors and authors of that material by anyone who conveys the material (or modified versions of it) with contractual assumptions of liability to the recipient, for any liability that these contractual assumptions directly impose on those licensors and authors. All other non-permissive additional terms are considered "further restrictions" within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term. If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying. If you add terms to a covered work in accord with this section, you must place, in the relevant source files, a statement of the additional terms that apply to those files, or a notice indicating where to find the applicable terms. Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way. 8. Termination. You may not propagate or modify a covered work except as expressly provided under this License. Any attempt otherwise to propagate or modify it is void, and will automatically terminate your rights under this License (including any patent licenses granted under the third paragraph of section 11). However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation. Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice. Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, you do not qualify to receive new licenses for the same material under section 10. 9. Acceptance Not Required for Having Copies. You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so. 10. Automatic Licensing of Downstream Recipients. Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run, modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties with this License. An "entity transaction" is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party'</span>s predecessor in interest had <span class="keyword">or</span> could give under the previous paragraph<span class="operator">,</span> plus a right to possession of the Corresponding Source of the work from the predecessor in interest<span class="operator">,</span> <span class="keyword">if</span> the predecessor has it <span class="keyword">or</span> can get it with reasonable efforts<span class="operator">.</span> You may <span class="keyword">not</span> impose any further restrictions on the exercise of the rights granted <span class="keyword">or</span> affirmed under <span class="keyword">this</span> License<span class="operator">.</span> For example<span class="operator">,</span> you may <span class="keyword">not</span> impose a license fee<span class="operator">,</span> royalty<span class="operator">,</span> <span class="keyword">or</span> other charge <span class="keyword">for</span> exercise of rights granted under <span class="keyword">this</span> License<span class="operator">,</span> and you may <span class="keyword">not</span> initiate litigation (including a cross<span class="operator">-</span>claim <span class="keyword">or</span> counterclaim in a lawsuit) alleging that any patent claim is infringed by making<span class="operator">,</span> <span class="keyword">using</span><span class="operator">,</span> selling<span class="operator">,</span> offering <span class="keyword">for</span> sale<span class="operator">,</span> <span class="keyword">or</span> importing the Program <span class="keyword">or</span> any portion of it<span class="operator">.</span> <span class="number">11.</span> Patents<span class="operator">.</span> A <span class="string">"contributor"</span> is a copyright holder who authorizes use under <span class="keyword">this</span> License of the Program <span class="keyword">or</span> a work on which the Program is based<span class="operator">.</span> The work thus licensed is called the contributor<span class="char">'s "contributor version". A contributor'</span>s <span class="string">"essential patent claims"</span> are all patent claims owned <span class="keyword">or</span> controlled by the contributor<span class="operator">,</span> whether already acquired <span class="keyword">or</span> hereafter acquired<span class="operator">,</span> that would be infringed by some manner<span class="operator">,</span> permitted by <span class="keyword">this</span> License<span class="operator">,</span> of making<span class="operator">,</span> <span class="keyword">using</span><span class="operator">,</span> <span class="keyword">or</span> selling its contributor version<span class="operator">,</span> but <span class="keyword">do</span> <span class="keyword">not</span> <span class="keyword">include</span> claims that would be infringed only as a consequence of further modification of the contributor version<span class="operator">.</span> For purposes of <span class="keyword">this</span> definition<span class="operator">,</span> <span class="string">"control"</span> includes the right to grant patent sublicenses in a manner consistent with the requirements of <span class="keyword">this</span> License<span class="operator">.</span> Each contributor grants you a non<span class="operator">-</span>exclusive<span class="operator">,</span> worldwide<span class="operator">,</span> royalty<span class="operator">-</span>free patent license under the contributor<span class="char">'s essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version. In the following three paragraphs, a "patent license" is any express agreement or commitment, however denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement). To "grant" such a patent license to a party means to make such an agreement or commitment not to enforce a patent against the party. If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients. "Knowingly relying" means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient'</span>s use of the covered work in a country<span class="operator">,</span> would infringe one <span class="keyword">or</span> more identifiable patents in that country that you have reason to believe are valid<span class="operator">.</span> If<span class="operator">,</span> pursuant to <span class="keyword">or</span> in connection with a single transaction <span class="keyword">or</span> arrangement<span class="operator">,</span> you convey<span class="operator">,</span> <span class="keyword">or</span> propagate by procuring conveyance of<span class="operator">,</span> a covered work<span class="operator">,</span> and grant a patent license to some of the parties receiving the covered work authorizing them to use<span class="operator">,</span> propagate<span class="operator">,</span> modify <span class="keyword">or</span> convey a specific copy of the covered work<span class="operator">,</span> then the patent license you grant is automatically extended to all recipients of the covered work and works based on it<span class="operator">.</span> A patent license is <span class="string">"discriminatory"</span> <span class="keyword">if</span> it does <span class="keyword">not</span> <span class="keyword">include</span> within the scope of its coverage<span class="operator">,</span> prohibits the exercise of<span class="operator">,</span> <span class="keyword">or</span> is conditioned on the non<span class="operator">-</span>exercise of one <span class="keyword">or</span> more of the rights that are specifically granted under <span class="keyword">this</span> License<span class="operator">.</span> You may <span class="keyword">not</span> convey a covered work <span class="keyword">if</span> you are a party to an arrangement with a third party that is in the business of distributing software<span class="operator">,</span> under which you make payment to the third party based on the extent of your activity of conveying the work<span class="operator">,</span> and under which the third party grants<span class="operator">,</span> to any of the parties who would receive the covered work from you<span class="operator">,</span> a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (<span class="keyword">or</span> copies made from those copies)<span class="operator">,</span> <span class="keyword">or</span> (b) primarily <span class="keyword">for</span> and in connection with specific products <span class="keyword">or</span> compilations that contain the covered work<span class="operator">,</span> unless you entered into that arrangement<span class="operator">,</span> <span class="keyword">or</span> that patent license was granted<span class="operator">,</span> prior to <span class="number">28</span> March <span class="number">2007.</span> Nothing in <span class="keyword">this</span> License shall be construed as excluding <span class="keyword">or</span> limiting any implied license <span class="keyword">or</span> other defenses to infringement that may otherwise be available to you under applicable patent law<span class="operator">.</span> <span class="number">12.</span> No Surrender of Others<span class="char">' Freedom. If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program. 13. Use with the GNU Affero General Public License. Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such. 14. Revised Versions of this License. The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation. If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy'</span>s <span class="keyword">public</span> statement of acceptance of a version permanently authorizes you to choose that version <span class="keyword">for</span> the Program<span class="operator">.</span> Later license versions may give you additional <span class="keyword">or</span> different permissions<span class="operator">.</span> However<span class="operator">,</span> no additional obligations are imposed on any author <span class="keyword">or</span> copyright holder as a result of your choosing to follow a later version<span class="operator">.</span> <span class="number">15.</span> Disclaimer of Warranty<span class="operator">.</span> THERE IS NO WARRANTY FOR THE PROGRAM<span class="operator">,</span> TO THE EXTENT PERMITTED BY APPLICABLE LAW<span class="operator">.</span> EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND<span class="operator">/</span>OR OTHER PARTIES PROVIDE THE PROGRAM <span class="string">"AS IS"</span> WITHOUT WARRANTY OF ANY KIND<span class="operator">,</span> EITHER EXPRESSED OR IMPLIED<span class="operator">,</span> INCLUDING<span class="operator">,</span> BUT NOT LIMITED TO<span class="operator">,</span> THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE<span class="operator">.</span> THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU<span class="operator">.</span> SHOULD THE PROGRAM PROVE DEFECTIVE<span class="operator">,</span> YOU ASSUME THE COST OF ALL NECESSARY SERVICING<span class="operator">,</span> REPAIR OR CORRECTION<span class="operator">.</span> <span class="number">16.</span> Limitation of Liability<span class="operator">.</span> IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER<span class="operator">,</span> OR ANY OTHER PARTY WHO MODIFIES AND<span class="operator">/</span>OR CONVEYS THE PROGRAM AS PERMITTED ABOVE<span class="operator">,</span> BE LIABLE TO YOU FOR DAMAGES<span class="operator">,</span> INCLUDING ANY GENERAL<span class="operator">,</span> SPECIAL<span class="operator">,</span> INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS)<span class="operator">,</span> EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES<span class="operator">.</span> <span class="number">17.</span> Interpretation of Sections <span class="number">15</span> and <span class="number">16.</span> If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms<span class="operator">,</span> reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program<span class="operator">,</span> unless a warranty <span class="keyword">or</span> assumption of liability accompanies a copy of the Program in <span class="keyword">return</span> <span class="keyword">for</span> a fee<span class="operator">.</span> END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a <span class="keyword">new</span> program<span class="operator">,</span> and you want it to be of the greatest possible use to the <span class="keyword">public</span><span class="operator">,</span> the best way to achieve <span class="keyword">this</span> is to make it free software which everyone can redistribute and change under these terms<span class="operator">.</span> To <span class="keyword">do</span> so<span class="operator">,</span> attach the following notices to the program<span class="operator">.</span> It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the <span class="string">"copyright"</span> line and a pointer to where the full notice is found<span class="operator">.</span> <span class="operator"><</span>one line to give the program<span class="char">'s name and a brief idea of what it does.> Copyright (C) <year> <name of author> This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. Also add information on how to contact you by electronic and paper mail. If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode: <program> Copyright (C) <year> <name of author> This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'</span><span class="operator">.</span> This is free software<span class="operator">,</span> and you are welcome to redistribute it under certain conditions; type `show c<span class="char">' for details. The hypothetical commands `show w'</span> and `show c<span class="char">' should show the appropriate parts of the General Public License. Of course, your program'</span>s commands might be different; <span class="keyword">for</span> a GUI interface<span class="operator">,</span> you would use an <span class="string">"about box"</span><span class="operator">.</span> You should also get your employer (<span class="keyword">if</span> you work as a programmer) <span class="keyword">or</span> school<span class="operator">,</span> <span class="keyword">if</span> any<span class="operator">,</span> to sign a <span class="string">"copyright disclaimer"</span> <span class="keyword">for</span> the program<span class="operator">,</span> <span class="keyword">if</span> necessary<span class="operator">.</span> For more information on <span class="keyword">this</span><span class="operator">,</span> and how to apply and follow the GNU GPL<span class="operator">,</span> see <span class="operator"><</span>http:<span class="comment">//www.gnu.org/licenses/>.</span> The GNU General Public License does <span class="keyword">not</span> permit incorporating your program into proprietary programs<span class="operator">.</span> If your program is a subroutine library<span class="operator">,</span> you may consider it more useful to permit linking proprietary applications with the library<span class="operator">.</span> If <span class="keyword">this</span> is what you want to <span class="keyword">do</span><span class="operator">,</span> use the GNU Lesser General Public License instead of <span class="keyword">this</span> License<span class="operator">.</span> But first<span class="operator">,</span> please read <span class="operator"><</span>http:<span class="comment">//www.gnu.org/philosophy/why-not-lgpl.html>.</span> </pre> </div> <!-- @@@gpl.html --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>