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<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"/><title>5 Snip Functions</title><link rel="stylesheet" type="text/css" href="../scribble.css" title="default"/><link rel="stylesheet" type="text/css" href="../racket.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-style.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-racket.css" title="default"/><link rel="stylesheet" type="text/css" href="../doc-site.css" title="default"/><script type="text/javascript" src="../scribble-common.js"></script><script type="text/javascript" src="../manual-racket.js"></script><script type="text/javascript" src="../doc-site.js"></script><script type="text/javascript" src="../local-redirect/local-redirect.js"></script><script type="text/javascript" src="../local-redirect/local-user-redirect.js"></script><!--[if IE 6]><style type="text/css">.SIEHidden { overflow: hidden; }</style><![endif]--></head><body id="doc-racket-lang-org"><div class="tocset"><div class="tocview"><div class="tocviewlist tocviewlisttopspace"><div class="tocviewtitle"><table cellspacing="0" cellpadding="0"><tr><td style="width: 1em;"><a href="javascript:void(0);" title="Expand/Collapse" class="tocviewtoggle" onclick="TocviewToggle(this,"tocview_0");">▼</a></td><td></td><td><a href="index.html" class="tocviewlink" data-pltdoc="x">Embedded GUI:<span class="mywbr"> </span> Widgets Within Editors</a></td></tr></table></div><div class="tocviewsublistonly" style="display: block;" id="tocview_0"><table cellspacing="0" cellpadding="0"><tr><td align="right">1 </td><td><a href="containers.html" class="tocviewlink" data-pltdoc="x">Containers</a></td></tr><tr><td align="right">2 </td><td><a href="controls.html" class="tocviewlink" data-pltdoc="x">Controls</a></td></tr><tr><td align="right">3 </td><td><a href="control-snips.html" class="tocviewlink" data-pltdoc="x">Control Snips</a></td></tr><tr><td align="right">4 </td><td><a href="Helpers.html" class="tocviewlink" data-pltdoc="x">Helpers</a></td></tr><tr><td align="right">5 </td><td><a href="" class="tocviewselflink" data-pltdoc="x">Snip Functions</a></td></tr></table></div></div></div><div class="tocsub"><div class="tocsubtitle">On this page:</div><table class="tocsublist" cellspacing="0"><tr><td><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._snip-width%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">snip-<wbr></wbr>width</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._snip-height%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">snip-<wbr></wbr>height</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._snip-min-width%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">snip-<wbr></wbr>min-<wbr></wbr>width</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._snip-min-height%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">snip-<wbr></wbr>min-<wbr></wbr>height</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._snip-parent%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">snip-<wbr></wbr>parent</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._fold-snip%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">fold-<wbr></wbr>snip</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._for-each-snip%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">for-<wbr></wbr>each-<wbr></wbr>snip</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._map-snip%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">map-<wbr></wbr>snip</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._stretchable-width~3f%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">stretchable-<wbr></wbr>width?</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._stretchable-height~3f%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">stretchable-<wbr></wbr>height?</span></span></a></td></tr></table></div></div><div class="maincolumn"><div class="main"><div class="navsettop"><span class="navleft"><form class="searchform"><input class="searchbox" style="color: #888;" type="text" value="...search manuals..." title="Enter a search string to search the manuals" onkeypress="return DoSearchKey(event, this, "6.1", "../");" onfocus="this.style.color="black"; this.style.textAlign="left"; if (this.value == "...search manuals...") this.value="";" onblur="if (this.value.match(/^ *$/)) { this.style.color="#888"; this.style.textAlign="center"; this.value="...search manuals..."; }"/></form> <a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot("6.1");">top</a></span><span class="navright"> <a href="Helpers.html" title="backward to "4 Helpers"" data-pltdoc="x">← prev</a> <a href="index.html" title="up to "Embedded GUI: Widgets Within Editors"" data-pltdoc="x">up</a> <span class="nonavigation">next →</span></span> </div><h3 x-source-module="(lib "embedded-gui/scribblings/embedded-gui.scrbl")" x-part-tag=""snip-related-functions"">5<tt> </tt><a name="(part._snip-related-functions)"></a>Snip Functions</h3><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._embedded-gui/main..rkt)._snip-width))"></a><span title="Provided from: embedded-gui | Package: gui-lib"><span class="RktSym"><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._snip-width%29%29" class="RktValDef RktValLink" data-pltdoc="x">snip-width</a></span></span><span class="hspace"> </span><span class="RktVar">snip</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=number-types.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._real%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">real?</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">snip</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=Object_and_Class_Contracts.html%23%2528def._%2528%2528lib._racket%252Fclass..rkt%2529._is-a%7E3f%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">is-a?/c</a></span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&rel=snip_.html&version=6.1" class="RktValLink Sq" data-pltdoc="x">snip%</a></span><span class="RktPn">)</span></td></tr></table></blockquote></div><div class="SIntrapara">The width of a snip in the parent pasteboard.</div></p><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._embedded-gui/main..rkt)._snip-height))"></a><span title="Provided from: embedded-gui | Package: gui-lib"><span class="RktSym"><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._snip-height%29%29" class="RktValDef RktValLink" data-pltdoc="x">snip-height</a></span></span><span class="hspace"> </span><span class="RktVar">snip</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=number-types.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._real%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">real?</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">snip</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=Object_and_Class_Contracts.html%23%2528def._%2528%2528lib._racket%252Fclass..rkt%2529._is-a%7E3f%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">is-a?/c</a></span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&rel=snip_.html&version=6.1" class="RktValLink Sq" data-pltdoc="x">snip%</a></span><span class="RktPn">)</span></td></tr></table></blockquote></div><div class="SIntrapara">The height of a snip in the parent pasteboard.</div></p><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._embedded-gui/main..rkt)._snip-min-width))"></a><span title="Provided from: embedded-gui | Package: gui-lib"><span class="RktSym"><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._snip-min-width%29%29" class="RktValDef RktValLink" data-pltdoc="x">snip-min-width</a></span></span><span class="hspace"> </span><span class="RktVar">snip</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=number-types.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._real%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">real?</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">snip</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=Object_and_Class_Contracts.html%23%2528def._%2528%2528lib._racket%252Fclass..rkt%2529._is-a%7E3f%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">is-a?/c</a></span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&rel=snip_.html&version=6.1" class="RktValLink Sq" data-pltdoc="x">snip%</a></span><span class="RktPn">)</span></td></tr></table></blockquote></div><div class="SIntrapara">The minimum width of the snip</div></p><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._embedded-gui/main..rkt)._snip-min-height))"></a><span title="Provided from: embedded-gui | Package: gui-lib"><span class="RktSym"><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._snip-min-height%29%29" class="RktValDef RktValLink" data-pltdoc="x">snip-min-height</a></span></span><span class="hspace"> </span><span class="RktVar">snip</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=number-types.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._real%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">real?</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">snip</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=Object_and_Class_Contracts.html%23%2528def._%2528%2528lib._racket%252Fclass..rkt%2529._is-a%7E3f%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">is-a?/c</a></span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&rel=snip_.html&version=6.1" class="RktValLink Sq" data-pltdoc="x">snip%</a></span><span class="RktPn">)</span></td></tr></table></blockquote></div><div class="SIntrapara">The minimum height of the snip.</div></p><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._embedded-gui/main..rkt)._snip-parent))"></a><span title="Provided from: embedded-gui | Package: gui-lib"><span class="RktSym"><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._snip-parent%29%29" class="RktValDef RktValLink" data-pltdoc="x">snip-parent</a></span></span><span class="hspace"> </span><span class="RktVar">snip</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=Object_and_Class_Contracts.html%23%2528def._%2528%2528lib._racket%252Fclass..rkt%2529._is-a%7E3f%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">is-a?/c</a></span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&rel=pasteboard_.html&version=6.1" class="RktValLink Sq" data-pltdoc="x">pasteboard%</a></span><span class="RktPn">)</span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">snip</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=Object_and_Class_Contracts.html%23%2528def._%2528%2528lib._racket%252Fclass..rkt%2529._is-a%7E3f%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">is-a?/c</a></span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&rel=snip_.html&version=6.1" class="RktValLink Sq" data-pltdoc="x">snip%</a></span><span class="RktPn">)</span></td></tr></table></blockquote></div><div class="SIntrapara">The pasteboard that contains the snip.</div></p><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._embedded-gui/main..rkt)._fold-snip))"></a><span title="Provided from: embedded-gui | Package: gui-lib"><span class="RktSym"><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._fold-snip%29%29" class="RktValDef RktValLink" data-pltdoc="x">fold-snip</a></span></span><span class="hspace"> </span><span class="RktVar">f</span><span class="hspace"> </span><span class="RktVar">init-acc</span><span class="hspace"> </span><span class="RktVar">snip</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=data-structure-contracts.html%23%2528def._%2528%2528lib._racket%252Fcontract%252Fprivate%252Fmisc..rkt%2529._any%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">any/c</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">f</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktPn">(</span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=Object_and_Class_Contracts.html%23%2528def._%2528%2528lib._racket%252Fclass..rkt%2529._is-a%7E3f%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">is-a?/c</a></span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&rel=snip_.html&version=6.1" class="RktValLink Sq" data-pltdoc="x">snip%</a></span><span class="RktPn">)</span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=data-structure-contracts.html%23%2528def._%2528%2528lib._racket%252Fcontract%252Fprivate%252Fmisc..rkt%2529._any%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">any/c</a></span><span class="hspace"> </span><span class="RktPn">. </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=function-contracts.html%23%2528form._%2528%2528lib._racket%252Fcontract%252Fbase..rkt%2529._-%7E3e%2529%2529&version=6.1" class="RktStxLink Sq" data-pltdoc="x"><span class="nobreak">-></span></a></span><span class="RktPn"> .</span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=data-structure-contracts.html%23%2528def._%2528%2528lib._racket%252Fcontract%252Fprivate%252Fmisc..rkt%2529._any%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">any/c</a></span><span class="RktPn">)</span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">init-acc</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=data-structure-contracts.html%23%2528def._%2528%2528lib._racket%252Fcontract%252Fprivate%252Fmisc..rkt%2529._any%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">any/c</a></span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">snip</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=Object_and_Class_Contracts.html%23%2528def._%2528%2528lib._racket%252Fclass..rkt%2529._is-a%7E3f%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">is-a?/c</a></span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&rel=snip_.html&version=6.1" class="RktValLink Sq" data-pltdoc="x">snip%</a></span><span class="RktPn">)</span></td></tr></table></blockquote></div><div class="SIntrapara">Applies <span class="RktVar">f</span> to all snips in the parent of <span class="RktVar">snip</span>,
starting with <span class="RktVar">snip</span>.</div></p><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._embedded-gui/main..rkt)._for-each-snip))"></a><span title="Provided from: embedded-gui | Package: gui-lib"><span class="RktSym"><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._for-each-snip%29%29" class="RktValDef RktValLink" data-pltdoc="x">for-each-snip</a></span></span><span class="hspace"> </span><span class="RktVar">f</span><span class="hspace"> </span><span class="RktVar">first-snip</span><span class="hspace"> </span><span class="RktVar">more</span><span class="hspace"> </span><span class="RktMeta">...</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=void.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._void%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">void?</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">f</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktPn">(</span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=Object_and_Class_Contracts.html%23%2528def._%2528%2528lib._racket%252Fclass..rkt%2529._is-a%7E3f%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">is-a?/c</a></span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&rel=snip_.html&version=6.1" class="RktValLink Sq" data-pltdoc="x">snip%</a></span><span class="RktPn">)</span><span class="hspace"> </span><span class="RktPn">. </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=function-contracts.html%23%2528form._%2528%2528lib._racket%252Fcontract%252Fbase..rkt%2529._-%7E3e%2529%2529&version=6.1" class="RktStxLink Sq" data-pltdoc="x"><span class="nobreak">-></span></a></span><span class="RktPn"> .</span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=data-structure-contracts.html%23%2528def._%2528%2528lib._racket%252Fcontract%252Fprivate%252Fmisc..rkt%2529._any%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">any/c</a></span><span class="RktPn">)</span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">first-snip</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=Object_and_Class_Contracts.html%23%2528def._%2528%2528lib._racket%252Fclass..rkt%2529._is-a%7E3f%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">is-a?/c</a></span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&rel=snip_.html&version=6.1" class="RktValLink Sq" data-pltdoc="x">snip%</a></span><span class="RktPn">)</span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">more</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=pairs.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._list%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">list?</a></span></td></tr></table></blockquote></div><div class="SIntrapara">Applies the function to each snip in the parent of
<span class="RktVar">first-snip</span>, starting with <span class="RktVar">first-snip</span>. If
<span class="RktVar">more</span> lists are supplied, they are used for extra arguments to
<span class="RktVar">f</span>, just like extra lists provided to <span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=pairs.html%23%2528def._%2528%2528lib._racket%252Fprivate%252Fmap..rkt%2529._for-each%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">for-each</a></span>.</div></p><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._embedded-gui/main..rkt)._map-snip))"></a><span title="Provided from: embedded-gui | Package: gui-lib"><span class="RktSym"><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._map-snip%29%29" class="RktValDef RktValLink" data-pltdoc="x">map-snip</a></span></span><span class="hspace"> </span><span class="RktVar">f</span><span class="hspace"> </span><span class="RktVar">first-snip</span><span class="hspace"> </span><span class="RktVar">more</span><span class="hspace"> </span><span class="RktMeta">...</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=void.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._void%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">void?</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">f</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktPn">(</span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=Object_and_Class_Contracts.html%23%2528def._%2528%2528lib._racket%252Fclass..rkt%2529._is-a%7E3f%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">is-a?/c</a></span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&rel=snip_.html&version=6.1" class="RktValLink Sq" data-pltdoc="x">snip%</a></span><span class="RktPn">)</span><span class="hspace"> </span><span class="RktPn">. </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=function-contracts.html%23%2528form._%2528%2528lib._racket%252Fcontract%252Fbase..rkt%2529._-%7E3e%2529%2529&version=6.1" class="RktStxLink Sq" data-pltdoc="x"><span class="nobreak">-></span></a></span><span class="RktPn"> .</span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=data-structure-contracts.html%23%2528def._%2528%2528lib._racket%252Fcontract%252Fprivate%252Fmisc..rkt%2529._any%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">any/c</a></span><span class="RktPn">)</span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">first-snip</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=Object_and_Class_Contracts.html%23%2528def._%2528%2528lib._racket%252Fclass..rkt%2529._is-a%7E3f%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">is-a?/c</a></span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&rel=snip_.html&version=6.1" class="RktValLink Sq" data-pltdoc="x">snip%</a></span><span class="RktPn">)</span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">more</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=pairs.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._list%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">list?</a></span></td></tr></table></blockquote></div><div class="SIntrapara">Applies the function to each snip in the parent of
<span class="RktVar">first-snip</span>, starting with <span class="RktVar">first-snip</span>, and
accumulates the results into a list. If <span class="RktVar">more</span> lists are
supplied, they are used for extra arguments to <span class="RktVar">f</span>, just like
extra lists provided to <span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=pairs.html%23%2528def._%2528%2528lib._racket%252Fprivate%252Fmap..rkt%2529._map%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">map</a></span>.</div></p><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._embedded-gui/main..rkt)._stretchable-width~3f))"></a><span title="Provided from: embedded-gui | Package: gui-lib"><span class="RktSym"><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._stretchable-width~3f%29%29" class="RktValDef RktValLink" data-pltdoc="x">stretchable-width?</a></span></span><span class="hspace"> </span><span class="RktVar">snip</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=booleans.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._boolean%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">boolean?</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">snip</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=Object_and_Class_Contracts.html%23%2528def._%2528%2528lib._racket%252Fclass..rkt%2529._is-a%7E3f%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">is-a?/c</a></span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&rel=snip_.html&version=6.1" class="RktValLink Sq" data-pltdoc="x">snip%</a></span><span class="RktPn">)</span></td></tr></table></blockquote></div><div class="SIntrapara">True if the snip can be resized in the X dimension.</div></p><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._embedded-gui/main..rkt)._stretchable-height~3f))"></a><span title="Provided from: embedded-gui | Package: gui-lib"><span class="RktSym"><a href="#%28def._%28%28lib._embedded-gui%2Fmain..rkt%29._stretchable-height~3f%29%29" class="RktValDef RktValLink" data-pltdoc="x">stretchable-height?</a></span></span><span class="hspace"> </span><span class="RktVar">snip</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=booleans.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._boolean%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">boolean?</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">snip</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=Object_and_Class_Contracts.html%23%2528def._%2528%2528lib._racket%252Fclass..rkt%2529._is-a%7E3f%252Fc%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">is-a?/c</a></span><span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&rel=snip_.html&version=6.1" class="RktValLink Sq" data-pltdoc="x">snip%</a></span><span class="RktPn">)</span></td></tr></table></blockquote></div><div class="SIntrapara">True if the snip can be resized in the Y dimension.</div></p><div class="navsetbottom"><span class="navleft"><form class="searchform"><input class="searchbox" style="color: #888;" type="text" value="...search manuals..." title="Enter a search string to search the manuals" onkeypress="return DoSearchKey(event, this, "6.1", "../");" onfocus="this.style.color="black"; 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