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<title>Qt Toolkit - QDoubleValidator Class</title><style type="text/css"><!--
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<h1 align=center>QDoubleValidator Class Reference</h1><br clear="all">
<p>
The QDoubleValidator class provides range checking of floating-point numbers.
<a href="#details">More...</a>
<p>
<code>#include <<a href="qvalidator-h.html">qvalidator.h</a>></code>
<p>
Inherits <a href="qvalidator.html">QValidator</a>.
<p><a href="qdoublevalidator-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li><span class="fn"><a href="qdoublevalidator.html#a0"><strong>QDoubleValidator</strong></a>(QWidget*parent, constchar*name=0)</span>
<li><span class="fn"><a href="qdoublevalidator.html#a1"><strong>QDoubleValidator</strong></a>(doublebottom, doubletop, intdecimals, QWidget*parent, constchar*name=0)</span>
<li><span class="fn"><a href="qdoublevalidator.html#a2"><strong>~QDoubleValidator</strong></a>()</span>
<li><span class="fn">virtualQValidator::State<a href="qvalidator.html#a2"><strong>validate</strong></a>(QString&, int&)</span>
<li><span class="fn">virtualvoid<a href="qdoublevalidator.html#a4"><strong>setRange</strong></a>(doublebottom, doubletop, intdecimals=0)</span>
<li><span class="fn">double<a href="qdoublevalidator.html#a5"><strong>bottom</strong></a>()const</span>
<li><span class="fn">double<a href="qdoublevalidator.html#a6"><strong>top</strong></a>()const</span>
<li><span class="fn">int<a href="qdoublevalidator.html#a7"><strong>decimals</strong></a>()const</span>
</ul>
<hr><h2><a name="details"></a>Detailed Description</h2>
The QDoubleValidator class provides range checking of floating-point numbers.
<p>
QDoubleValidator provides an upper bound, a lower bound, and a limit
on the number of digits after the decimal point. It does not
provide a <a href="qvalidator.html#a3">fixup</a>() function.
<p>See also: <a href="qintvalidator.html">QIntValidator</a>.
<hr><h2>Member Function Documentation</h2>
<h3 class="fn"><a name="a0"></a>QDoubleValidator::QDoubleValidator(<a href="qwidget.html">QWidget</a>*parent, constchar*name=0)</h3>
<p>Creates a validator object which accepts all double from 2.7182818
to 3.1415926 (please, no bug reports) with at most seven digits after
the decimal point.
<p>This constructor is not meant to be useful; it is provided for
completeness.
<h3 class="fn"><a name="a1"></a>QDoubleValidator::QDoubleValidator(doublebottom, doubletop, intdecimals, <a href="qwidget.html">QWidget</a>*parent, constchar*name=0)</h3>
<p>Creates a validator object which accepts all doubles from <em>bottom</em> up to and including <em>top</em> with at most <em>decimals</em> digits
after the decimal point.
<h3 class="fn"><a name="a2"></a>QDoubleValidator::~QDoubleValidator()</h3>
<p>Deletes the validator and frees any storage and other resources
used.
<h3 class="fn">double<a name="a5"></a>QDoubleValidator::bottom()const</h3>
<p>Returns the lowest valid number according to this validator.
<p>See also: <a href="qdoublevalidator.html#a6">top</a>(), <a href="qdoublevalidator.html#a7">decimals</a>() and <a href="qdoublevalidator.html#a4">setRange</a>().
<h3 class="fn">int<a name="a7"></a>QDoubleValidator::decimals()const</h3>
<p>Returns the largest number of digits a valid number can have after
its decimal point.
<p>See also: <a href="qdoublevalidator.html#a5">bottom</a>(), <a href="qdoublevalidator.html#a6">top</a>() and <a href="qdoublevalidator.html#a4">setRange</a>().
<h3 class="fn">void<a name="a4"></a>QDoubleValidator::setRange(doublebottom, doubletop, intdecimals=0) <code>[virtual]</code></h3>
<p>Sets the validator to accept numbers from <em>bottom</em> up to and
including <em>top</em> with at most <em>decimals</em> digits after the decimal
point.
<h3 class="fn">double<a name="a6"></a>QDoubleValidator::top()const</h3>
<p>Returns the highest valid number according to this validator.
<p>See also: <a href="qdoublevalidator.html#a5">bottom</a>(), decimals and <a href="qdoublevalidator.html#a4">setRange</a>().
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This file is part of the <a href="index.html">Qt toolkit</a>,
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It was generated from the following files:
<ul>
<li>qvalidator.h: 1998/08/19
<li>qvalidator.cpp: 1998/07/03
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