<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qrgba64.qdoc --> <title>QRgba64 Class | Qt GUI 5.12.6</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 >Qt 5.12</td><td ><a href="qtgui-index.html">Qt GUI</a></td><td ><a href="qtgui-module.html">C++ Classes</a></td><td >QRgba64</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtgui-index.html">Qt 5.12.6 Reference Documentation</a></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="#public-functions">Public Functions</a></li> <li class="level1"><a href="#static-public-members">Static Public Members</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">QRgba64 Class</h1> <!-- $$$QRgba64-brief --> <p>The <a href="qrgba64.html">QRgba64</a> struct contains a 64-bit RGB color. <a href="#details">More...</a></p> <!-- @@@QRgba64 --> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QRgba64></span> </td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += gui</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> Qt 5.6</td></tr></table></div><ul> <li><a href="qrgba64-members.html">List of all members, including inherited members</a></li> </ul> <a name="public-functions"></a> <h2 id="public-functions">Public Functions</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#QRgba64">QRgba64</a></b>()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> quint8 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#alpha8">alpha8</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> quint16 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#alpha">alpha</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> quint8 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#blue8">blue8</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> quint16 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#blue">blue</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> quint8 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#green8">green8</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> quint16 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#green">green</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#isOpaque">isOpaque</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#isTransparent">isTransparent</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QRgba64 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#premultiplied">premultiplied</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> quint8 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#red8">red8</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> quint16 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#red">red</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#setAlpha">setAlpha</a></b>(quint16 <i>alpha</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#setBlue">setBlue</a></b>(quint16 <i>blue</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#setGreen">setGreen</a></b>(quint16 <i>green</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#setRed">setRed</a></b>(quint16 <i>red</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> uint </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#toArgb32">toArgb32</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> ushort </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#toRgb16">toRgb16</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QRgba64 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#unpremultiplied">unpremultiplied</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> quint64 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#operator-quint64">operator quint64</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QRgba64 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#operator-eq">operator=</a></b>(quint64 <i>rgba</i>)</td></tr> </table></div> <a name="static-public-members"></a> <h2 id="static-public-members">Static Public Members</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> QRgba64 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#fromArgb32">fromArgb32</a></b>(uint <i>rgb</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QRgba64 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#fromRgba64">fromRgba64</a></b>(quint64 <i>c</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QRgba64 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#fromRgba64-1">fromRgba64</a></b>(quint16 <i>r</i>, quint16 <i>g</i>, quint16 <i>b</i>, quint16 <i>a</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QRgba64 </td><td class="memItemRight bottomAlign"><b><a href="qrgba64.html#fromRgba">fromRgba</a></b>(quint8 <i>red</i>, quint8 <i>green</i>, quint8 <i>blue</i>, quint8 <i>alpha</i>)</td></tr> </table></div> <a name="details"></a> <!-- $$$QRgba64-description --> <div class="descr"> <h2 id="details">Detailed Description</h2> <p>The <a href="qrgba64.html">QRgba64</a> struct contains a 64-bit RGB color.</p> <p><a href="qrgba64.html">QRgba64</a> is a 64-bit data-structure containing four 16-bit color channels: Red, green, blue and alpha.</p> <p><a href="qrgba64.html">QRgba64</a> can be used as a replacement for <a href="qcolor.html#QRgb-typedef">QRgb</a> when higher precision is needed. In particular a premultiplied <a href="qrgba64.html">QRgba64</a> can operate on unpremultiplied <a href="qcolor.html#QRgb-typedef">QRgb</a> without loss of precision except for alpha 0.</p> </div> <p><b>See also </b><a href="qcolor.html#QRgb-typedef">QRgb</a> and <a href="qcolor.html">QColor</a>.</p> <!-- @@@QRgba64 --> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$QRgba64[overload1]$$$QRgba64 --> <h3 class="fn" id="QRgba64"><a name="QRgba64"></a>QRgba64::<span class="name">QRgba64</span>()</h3> <p>Default constructs an instance of QRgba64.</p><!-- @@@QRgba64 --> <!-- $$$alpha8[overload1]$$$alpha8 --> <h3 class="fn" id="alpha8"><a name="alpha8"></a><span class="type"><a href="../qtcore/qtglobal.html#quint8-typedef">quint8</a></span> QRgba64::<span class="name">alpha8</span>() const</h3> <p>Returns the alpha channel as an 8-bit.</p> <!-- @@@alpha8 --> <!-- $$$alpha[overload1]$$$alpha --> <h3 class="fn" id="alpha"><a name="alpha"></a><span class="type"><a href="../qtcore/qtglobal.html#quint16-typedef">quint16</a></span> QRgba64::<span class="name">alpha</span>() const</h3> <p>Returns the 16-bit alpha channel.</p> <p><b>See also </b><a href="qrgba64.html#setAlpha">setAlpha</a>().</p> <!-- @@@alpha --> <!-- $$$blue8[overload1]$$$blue8 --> <h3 class="fn" id="blue8"><a name="blue8"></a><span class="type"><a href="../qtcore/qtglobal.html#quint8-typedef">quint8</a></span> QRgba64::<span class="name">blue8</span>() const</h3> <p>Returns the blue color component as an 8-bit.</p> <!-- @@@blue8 --> <!-- $$$blue[overload1]$$$blue --> <h3 class="fn" id="blue"><a name="blue"></a><span class="type"><a href="../qtcore/qtglobal.html#quint16-typedef">quint16</a></span> QRgba64::<span class="name">blue</span>() const</h3> <p>Returns the 16-bit blue color component.</p> <p><b>See also </b><a href="qrgba64.html#setBlue">setBlue</a>().</p> <!-- @@@blue --> <!-- $$$fromArgb32[overload1]$$$fromArgb32uint --> <h3 class="fn" id="fromArgb32"><a name="fromArgb32"></a><code>[static] </code><span class="type"><a href="qrgba64.html#QRgba64">QRgba64</a></span> QRgba64::<span class="name">fromArgb32</span>(<span class="type"><a href="../qtcore/qtglobal.html#uint-typedef">uint</a></span> <i>rgb</i>)</h3> <p>Constructs a <a href="qrgba64.html">QRgba64</a> value from the 32bit ARGB value <i>rgb</i>.</p> <p><b>See also </b><a href="qrgba64.html#fromRgba">fromRgba</a>().</p> <!-- @@@fromArgb32 --> <!-- $$$fromRgba64[overload1]$$$fromRgba64quint64 --> <h3 class="fn" id="fromRgba64"><a name="fromRgba64"></a><code>[static] </code><span class="type"><a href="qrgba64.html#QRgba64">QRgba64</a></span> QRgba64::<span class="name">fromRgba64</span>(<span class="type"><a href="../qtcore/qtglobal.html#quint64-typedef">quint64</a></span> <i>c</i>)</h3> <p>Returns <i>c</i> as a <a href="qrgba64.html">QRgba64</a> struct.</p> <p><b>See also </b><a href="qrgba64.html#fromArgb32">fromArgb32</a>().</p> <!-- @@@fromRgba64 --> <!-- $$$fromRgba64$$$fromRgba64quint16quint16quint16quint16 --> <h3 class="fn" id="fromRgba64-1"><a name="fromRgba64-1"></a><code>[static] </code><span class="type"><a href="qrgba64.html#QRgba64">QRgba64</a></span> QRgba64::<span class="name">fromRgba64</span>(<span class="type"><a href="../qtcore/qtglobal.html#quint16-typedef">quint16</a></span> <i>r</i>, <span class="type"><a href="../qtcore/qtglobal.html#quint16-typedef">quint16</a></span> <i>g</i>, <span class="type"><a href="../qtcore/qtglobal.html#quint16-typedef">quint16</a></span> <i>b</i>, <span class="type"><a href="../qtcore/qtglobal.html#quint16-typedef">quint16</a></span> <i>a</i>)</h3> <p>Returns the <a href="qrgba64.html">QRgba64</a> quadruplet (<i>r</i>, <i>g</i>, <i>b</i>, <i>a</i>).</p> <p><b>See also </b><a href="qrgba64.html#fromRgba">fromRgba</a>().</p> <!-- @@@fromRgba64 --> <!-- $$$fromRgba[overload1]$$$fromRgbaquint8quint8quint8quint8 --> <h3 class="fn" id="fromRgba"><a name="fromRgba"></a><code>[static] </code><span class="type"><a href="qrgba64.html#QRgba64">QRgba64</a></span> QRgba64::<span class="name">fromRgba</span>(<span class="type"><a href="../qtcore/qtglobal.html#quint8-typedef">quint8</a></span> <i>red</i>, <span class="type"><a href="../qtcore/qtglobal.html#quint8-typedef">quint8</a></span> <i>green</i>, <span class="type"><a href="../qtcore/qtglobal.html#quint8-typedef">quint8</a></span> <i>blue</i>, <span class="type"><a href="../qtcore/qtglobal.html#quint8-typedef">quint8</a></span> <i>alpha</i>)</h3> <p>Constructs a <a href="qrgba64.html">QRgba64</a> value from the four 8-bit color channels <i>red</i>, <i>green</i>, <i>blue</i> and <i>alpha</i>.</p> <p><b>See also </b><a href="qrgba64.html#fromArgb32">fromArgb32</a>().</p> <!-- @@@fromRgba --> <!-- $$$green8[overload1]$$$green8 --> <h3 class="fn" id="green8"><a name="green8"></a><span class="type"><a href="../qtcore/qtglobal.html#quint8-typedef">quint8</a></span> QRgba64::<span class="name">green8</span>() const</h3> <p>Returns the green color component as an 8-bit.</p> <!-- @@@green8 --> <!-- $$$green[overload1]$$$green --> <h3 class="fn" id="green"><a name="green"></a><span class="type"><a href="../qtcore/qtglobal.html#quint16-typedef">quint16</a></span> QRgba64::<span class="name">green</span>() const</h3> <p>Returns the 16-bit green color component.</p> <p><b>See also </b><a href="qrgba64.html#setGreen">setGreen</a>().</p> <!-- @@@green --> <!-- $$$isOpaque[overload1]$$$isOpaque --> <h3 class="fn" id="isOpaque"><a name="isOpaque"></a><span class="type">bool</span> QRgba64::<span class="name">isOpaque</span>() const</h3> <p>Returns whether the color is fully opaque.</p> <p><b>See also </b><a href="qrgba64.html#isTransparent">isTransparent</a>() and <a href="qrgba64.html#alpha">alpha</a>().</p> <!-- @@@isOpaque --> <!-- $$$isTransparent[overload1]$$$isTransparent --> <h3 class="fn" id="isTransparent"><a name="isTransparent"></a><span class="type">bool</span> QRgba64::<span class="name">isTransparent</span>() const</h3> <p>Returns whether the color is transparent.</p> <p><b>See also </b><a href="qrgba64.html#isOpaque">isOpaque</a>() and <a href="qrgba64.html#alpha">alpha</a>().</p> <!-- @@@isTransparent --> <!-- $$$premultiplied[overload1]$$$premultiplied --> <h3 class="fn" id="premultiplied"><a name="premultiplied"></a><span class="type"><a href="qrgba64.html#QRgba64">QRgba64</a></span> QRgba64::<span class="name">premultiplied</span>() const</h3> <p>Returns the color with the alpha premultiplied.</p> <p><b>See also </b><a href="qrgba64.html#unpremultiplied">unpremultiplied</a>().</p> <!-- @@@premultiplied --> <!-- $$$red8[overload1]$$$red8 --> <h3 class="fn" id="red8"><a name="red8"></a><span class="type"><a href="../qtcore/qtglobal.html#quint8-typedef">quint8</a></span> QRgba64::<span class="name">red8</span>() const</h3> <p>Returns the red color component as an 8-bit.</p> <!-- @@@red8 --> <!-- $$$red[overload1]$$$red --> <h3 class="fn" id="red"><a name="red"></a><span class="type"><a href="../qtcore/qtglobal.html#quint16-typedef">quint16</a></span> QRgba64::<span class="name">red</span>() const</h3> <p>Returns the 16-bit red color component.</p> <p><b>See also </b><a href="qrgba64.html#setRed">setRed</a>().</p> <!-- @@@red --> <!-- $$$setAlpha[overload1]$$$setAlphaquint16 --> <h3 class="fn" id="setAlpha"><a name="setAlpha"></a><span class="type">void</span> QRgba64::<span class="name">setAlpha</span>(<span class="type"><a href="../qtcore/qtglobal.html#quint16-typedef">quint16</a></span> <i>alpha</i>)</h3> <p>Sets the alpha of this color to <i>alpha</i>.</p> <p><b>See also </b><a href="qrgba64.html#alpha">alpha</a>().</p> <!-- @@@setAlpha --> <!-- $$$setBlue[overload1]$$$setBluequint16 --> <h3 class="fn" id="setBlue"><a name="setBlue"></a><span class="type">void</span> QRgba64::<span class="name">setBlue</span>(<span class="type"><a href="../qtcore/qtglobal.html#quint16-typedef">quint16</a></span> <i>blue</i>)</h3> <p>Sets the blue color component of this color to <i>blue</i>.</p> <p><b>See also </b><a href="qrgba64.html#blue">blue</a>().</p> <!-- @@@setBlue --> <!-- $$$setGreen[overload1]$$$setGreenquint16 --> <h3 class="fn" id="setGreen"><a name="setGreen"></a><span class="type">void</span> QRgba64::<span class="name">setGreen</span>(<span class="type"><a href="../qtcore/qtglobal.html#quint16-typedef">quint16</a></span> <i>green</i>)</h3> <p>Sets the green color component of this color to <i>green</i>.</p> <p><b>See also </b><a href="qrgba64.html#green">green</a>().</p> <!-- @@@setGreen --> <!-- $$$setRed[overload1]$$$setRedquint16 --> <h3 class="fn" id="setRed"><a name="setRed"></a><span class="type">void</span> QRgba64::<span class="name">setRed</span>(<span class="type"><a href="../qtcore/qtglobal.html#quint16-typedef">quint16</a></span> <i>red</i>)</h3> <p>Sets the red color component of this color to <i>red</i>.</p> <p><b>See also </b><a href="qrgba64.html#red">red</a>().</p> <!-- @@@setRed --> <!-- $$$toArgb32[overload1]$$$toArgb32 --> <h3 class="fn" id="toArgb32"><a name="toArgb32"></a><span class="type"><a href="../qtcore/qtglobal.html#uint-typedef">uint</a></span> QRgba64::<span class="name">toArgb32</span>() const</h3> <p>Returns the color as a 32-bit ARGB value.</p> <p><b>See also </b><a href="qrgba64.html#fromArgb32">fromArgb32</a>().</p> <!-- @@@toArgb32 --> <!-- $$$toRgb16[overload1]$$$toRgb16 --> <h3 class="fn" id="toRgb16"><a name="toRgb16"></a><span class="type"><a href="../qtcore/qtglobal.html#ushort-typedef">ushort</a></span> QRgba64::<span class="name">toRgb16</span>() const</h3> <p>Returns the color as a 16-bit RGB value.</p> <p><b>See also </b><a href="qrgba64.html#toArgb32">toArgb32</a>().</p> <!-- @@@toRgb16 --> <!-- $$$unpremultiplied[overload1]$$$unpremultiplied --> <h3 class="fn" id="unpremultiplied"><a name="unpremultiplied"></a><span class="type"><a href="qrgba64.html#QRgba64">QRgba64</a></span> QRgba64::<span class="name">unpremultiplied</span>() const</h3> <p>Returns the color with the alpha unpremultiplied.</p> <p><b>See also </b><a href="qrgba64.html#premultiplied">premultiplied</a>().</p> <!-- @@@unpremultiplied --> <!-- $$$operator quint64[overload1]$$$operator quint64 --> <h3 class="fn" id="operator-quint64"><a name="operator-quint64"></a><span class="type"><a href="../qtcore/qtglobal.html#quint64-typedef">quint64</a></span> QRgba64::<span class="name">operator quint64</span>() const</h3> <p>Returns the color as a 64bit unsigned integer</p> <!-- @@@operator quint64 --> <!-- $$$operator=[overload1]$$$operator=quint64 --> <h3 class="fn" id="operator-eq"><a name="operator-eq"></a><span class="type"><a href="qrgba64.html#QRgba64">QRgba64</a></span> QRgba64::<span class="name">operator=</span>(<span class="type"><a href="../qtcore/qtglobal.html#quint64-typedef">quint64</a></span> <i>rgba</i>)</h3> <p>Assigns the value <i>rgba</i> to this instance of <a href="qrgba64.html">QRgba64</a> and returns it.</p> <!-- @@@operator= --> </div> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 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>