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<!DOCTYPE html>
<html>
<head>
<title>Multi-Entry Widgets for Real Numbers in Fixed-Point Format</title>
<meta name="Author" content="Csaba Nemethi">
<meta name="Keywords" content="mentry, widget, real number">
<link rel="stylesheet" type="text/css" href="stylesheet.css">
</head>
<body>
<div>
<h1>Multi-Entry Widgets for Real Numbers<br>
in Fixed-Point Format</h1>
<h2>For Mentry Version 4.3</h2>
<h3>by</h3>
<h2>Csaba Nemethi</h2>
<address>
<a href="mailto:csaba.nemethi@t-online.de">csaba.nemethi@t-online.de</a>
</address>
</div>
<hr>
<h2 id="contents">Contents</h2>
<ul>
<li><a href="#fixedPointMentry">The
<code><b>mentry::fixedPointMentry</b></code> Command</a></li>
<li><a href="#putReal">The <code><b>mentry::putReal</b></code>
Command</a></li>
<li><a href="#getReal">The <code><b>mentry::getReal</b></code>
Command</a></li>
</ul>
<div>
<p><a href="index.html">Start page</a></p>
</div>
<hr>
<h2 id="fixedPointMentry">The <code><b>mentry::fixedPointMentry</b></code>
Command</h2>
<dl>
<dt><b>NAME</b></dt>
<dd><code>mentry::fixedPointMentry</code> – Create and manipulate
mentry widgets for real numbers in fixed-point format</dd>
<dt class="tm"><b>SYNOPSIS</b></dt>
<dd>
<pre>
<b>mentry::fixedPointMentry</b> <i>pathName count1 count2</i> ?<b>-comma</b>? ?<i>options</i>?
</pre>
</dd>
<dt><b>DESCRIPTION</b></dt>
<dd>This command creates a new mentry widget <code><i>pathName</i></code>
for displaying and editing real numbers in fixed-point format, with
<code><i>count1</i></code> characters before and <code><i>count2</i></code>
digits after the decimal point. Both <code><i>count1</i></code> and
<code><i>count2</i></code> must be positive integers. The mentry will
have two entry components, separated by a label displaying a
<code><b>"."</b></code> character by default; the optional
<code><b>-comma</b></code> switch changes the label text to
<code><b>","</b></code>. The supported <code><i>options</i></code>
are the same as in the case of the <code><b><a href=
"mentryWidget.html">mentry::mentry</a></b></code> command.</dd>
<dd class="tm">The command sets the <code><b>type</b></code> attribute of
the widget to the value <code>"FixedPoint"</code> and returns the name of
the newly created widget.</dd>
<dt class="tm"><b>KEYWORDS</b></dt>
<dd>mentry, widget, real number</dd>
</dl>
<div>
<p><a href="#contents">Contents</a> <a href=
"index.html">Start page</a></p>
</div>
<hr>
<h2 id="putReal">The <code><b>mentry::putReal</b></code> Command</h2>
<dl>
<dt><b>NAME</b></dt>
<dd><code>mentry::putReal</code> – Output a real number to a mentry
of type <code>"FixedPoint"</code></dd>
<dt class="tm"><b>SYNOPSIS</b></dt>
<dd>
<pre>
<b>mentry::putReal</b> <i>number</i> <i>pathName</i>
</pre>
</dd>
<dt><b>DESCRIPTION</b></dt>
<dd>This command outputs the real number <code><i>number</i></code> to the
mentry widget <code><i>pathName</i></code>, which must have been created
with the <code><b><a href=
"#fixedPointMentry">mentry::fixedPointMentry</a></b></code> command (this
is checked by examining the widget's <code><b>type</b></code> attribute,
which must have the value <code>"FixedPoint"</code>).</dd>
<dd class="tm">The command generates an error if the number does not fit
into the widget because it has too many characters before the decimal
point.</dd>
<dt class="tm"><b>KEYWORDS</b></dt>
<dd>mentry, widget, real number</dd>
</dl>
<div>
<p><a href="#contents">Contents</a> <a href=
"index.html">Start page</a></p>
</div>
<hr>
<h2 id="getReal">The <code><b>mentry::getReal</b></code> Command</h2>
<dl>
<dt><b>NAME</b></dt>
<dd><code>mentry::getReal</code> – Get a real number from a mentry of
type <code>"FixedPoint"</code></dd>
<dt class="tm"><b>SYNOPSIS</b></dt>
<dd>
<pre>
<b>mentry::getReal</b> <i>pathName</i>
</pre>
</dd>
<dt><b>DESCRIPTION</b></dt>
<dd>This command returns the number contained in the mentry widget
<code><i>pathName</i></code>, which must have been created with the
<code><b><a href=
"#fixedPointMentry">mentry::fixedPointMentry</a></b></code> command (this
is checked by examining the widget's <code><b>type</b></code> attribute,
which must have the value <code>"FixedPoint"</code>).</dd>
<dd class="tm">If both entry components of the widget are empty, the
command sets the focus to the first entry component, generates an error,
and returns the string <code>"EMPTY"</code>.</dd>
<dt class="tm"><b>KEYWORDS</b></dt>
<dd>mentry, widget, real number</dd>
</dl>
<div>
<p><a href="#contents">Contents</a> <a href=
"index.html">Start page</a></p>
</div>
</body>
</html>
|
