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QRegExpValidator
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SUMMARY: <A HREF="#nested_classes_inherited_from_class_com.trolltech.qt.gui.QValidator">NESTED</A> | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
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com.trolltech.qt.gui</FONT>
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Class QRegExpValidator</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../com/trolltech/qt/QSignalEmitter.html" title="class in com.trolltech.qt">com.trolltech.qt.QSignalEmitter</A>
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../com/trolltech/qt/QtJambiObject.html" title="class in com.trolltech.qt">com.trolltech.qt.QtJambiObject</A>
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<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../com/trolltech/qt/gui/QValidator.html" title="class in com.trolltech.qt.gui">com.trolltech.qt.gui.QValidator</A>
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>com.trolltech.qt.gui.QRegExpValidator</B>
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<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../com/trolltech/qt/QtJambiInterface.html" title="interface in com.trolltech.qt">QtJambiInterface</A></DD>
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<DT><PRE>public class <B>QRegExpValidator</B><DT>extends <A HREF="../../../../com/trolltech/qt/gui/QValidator.html" title="class in com.trolltech.qt.gui">QValidator</A></DL>
</PRE>
<P>
<p>The <a href="QRegExpValidator.html#QRegExpValidator(com.trolltech.qt.core.QRegExp, com.trolltech.qt.core.QObject)"><tt>QRegExpValidator</tt></a> class is used to check a string against a regular expression.</p>
<p><a href="QRegExpValidator.html#QRegExpValidator(com.trolltech.qt.core.QRegExp, com.trolltech.qt.core.QObject)"><tt>QRegExpValidator</tt></a> uses a regular expression (regexp) to determine whether an input string is <a href="QValidator.html#State-enum">Acceptable</tt></a>, <a href="QValidator.html#State-enum">Intermediate</tt></a>, or <a href="QValidator.html#State-enum">Invalid</tt></a>. The regexp can either be supplied when the <a href="QRegExpValidator.html#QRegExpValidator(com.trolltech.qt.core.QRegExp, com.trolltech.qt.core.QObject)"><tt>QRegExpValidator</tt></a> is constructed, or at a later time.</p>
<p>When <a href="QRegExpValidator.html#QRegExpValidator(com.trolltech.qt.core.QRegExp, com.trolltech.qt.core.QObject)"><tt>QRegExpValidator</tt></a> determines whether a string is <a href="QValidator.html#State-enum">Acceptable</tt></a> or not, the regexp is treated as if it begins with the start of string assertion (<b>^</b>) and ends with the end of string assertion (<b>$</b>); the match is against the entire input string, or from the given position if a start position greater than zero is given.</p>
<p>If a string is a prefix of an <a href="QValidator.html#State-enum">Acceptable</tt></a> string, it is considered <a href="QValidator.html#State-enum">Intermediate</tt></a>. For example, "" and "A" are <a href="QValidator.html#State-enum">Intermediate</tt></a> for the regexp <b>[A-Z][0-9]</b> (whereas "_" would be <a href="QValidator.html#State-enum">Invalid</tt></a>).</p>
<p>For a brief introduction to Qt's regexp engine, see <a href="%2E%2E/core/QRegExp.html"><tt>QRegExp</tt></a>.</p>
<p>Example of use:</p>
<pre><span class="comment"> // regexp: optional '-' followed by between 1 and 3 digits</span>
QRegExp rx("-?\\d{1,3}");
QValidator *validator = new QRegExpValidator(rx, this);
QLineEdit *edit = new QLineEdit(this);
edit->setValidator(validator);</pre>
<p>Below we present some examples of validators. In practice they would normally be associated with a widget as in the example above.</p>
<pre><span class="comment"> // integers 1 to 9999</span>
QRegExp rx("[1-9]\\d{0,3}");
<span class="comment"> // the validator treats the regexp as "^[1-9]\\d{0,3}$"</span>
QRegExpValidator v(rx, 0);
QString s;
int pos = 0;
s = "0"; v.validate(s, pos); <span class="comment">// returns Invalid</span>
s = "12345"; v.validate(s, pos); <span class="comment">// returns Invalid</span>
s = "1"; v.validate(s, pos); <span class="comment">// returns Acceptable</span>
rx.setPattern("\\S+"); <span class="comment">// one or more non-whitespace characters</span>
v.setRegExp(rx);
s = "myfile.txt"; v.validate(s, pos); <span class="comment">// Returns Acceptable</span>
s = "my file.txt"; v.validate(s, pos); <span class="comment">// Returns Invalid</span>
<span class="comment"> // A, B or C followed by exactly five digits followed by W, X, Y or Z</span>
rx.setPattern("[A-C]\\d{5}[W-Z]");
v.setRegExp(rx);
s = "a12345Z"; v.validate(s, pos); <span class="comment">// Returns Invalid</span>
s = "A12345Z"; v.validate(s, pos); <span class="comment">// Returns Acceptable</span>
s = "B12"; v.validate(s, pos); <span class="comment">// Returns Intermediate</span>
<span class="comment"> // match most 'readme' files</span>
rx.setPattern("read\\S?me(\.(txt|asc|1st))?");
rx.setCaseSensitive(false);
v.setRegExp(rx);
s = "readme"; v.validate(s, pos); <span class="comment">// Returns Acceptable</span>
s = "README.1ST"; v.validate(s, pos); <span class="comment">// Returns Acceptable</span>
s = "read me.txt"; v.validate(s, pos); <span class="comment">// Returns Invalid</span>
s = "readm"; v.validate(s, pos); <span class="comment">// Returns Intermediate</span></pre>
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<DL>
<DT><B>See Also:</B><DD><a href="%2E%2E/core/QRegExp.html"><tt>QRegExp</tt></a>,
<a href="QIntValidator.html"><tt>QIntValidator</tt></a>,
<a href="QDoubleValidator.html"><tt>QDoubleValidator</tt></a>,
<CODE>Editor Example</tt></CODE></DL>
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<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QRegExpValidator.html#QRegExpValidator(com.trolltech.qt.core.QObject)">QRegExpValidator</A></B>(<A HREF="../../../../com/trolltech/qt/core/QObject.html" title="class in com.trolltech.qt.core">QObject</A> parent)</CODE>
<BR>
Constructs a validator with a <tt>parent</tt> object that accepts any string (including an empty one) as valid.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QRegExpValidator.html#QRegExpValidator(com.trolltech.qt.core.QRegExp, com.trolltech.qt.core.QObject)">QRegExpValidator</A></B>(<A HREF="../../../../com/trolltech/qt/core/QRegExp.html" title="class in com.trolltech.qt.core">QRegExp</A> rx,
<A HREF="../../../../com/trolltech/qt/core/QObject.html" title="class in com.trolltech.qt.core">QObject</A> parent)</CODE>
<BR>
Constructs a validator with a <tt>parent</tt> object that accepts all strings that match the regular expression <tt>rx</tt>.</TD>
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<CODE>static <A HREF="../../../../com/trolltech/qt/gui/QRegExpValidator.html" title="class in com.trolltech.qt.gui">QRegExpValidator</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QRegExpValidator.html#fromNativePointer(com.trolltech.qt.QNativePointer)">fromNativePointer</A></B>(<A HREF="../../../../com/trolltech/qt/QNativePointer.html" title="class in com.trolltech.qt">QNativePointer</A> nativePointer)</CODE>
<BR>
This function returns the QRegExpValidator instance pointed to by nativePointer</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../com/trolltech/qt/core/QRegExp.html" title="class in com.trolltech.qt.core">QRegExp</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QRegExpValidator.html#regExp()">regExp</A></B>()</CODE>
<BR>
Returns the regular expression used for validation.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QRegExpValidator.html#setRegExp(com.trolltech.qt.core.QRegExp)">setRegExp</A></B>(<A HREF="../../../../com/trolltech/qt/core/QRegExp.html" title="class in com.trolltech.qt.core">QRegExp</A> rx)</CODE>
<BR>
Sets the regular expression used for validation to <tt>rx</tt>.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../com/trolltech/qt/gui/QValidator.State.html" title="enum in com.trolltech.qt.gui">QValidator.State</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QRegExpValidator.html#validate(com.trolltech.qt.gui.QValidator.QValidationData)">validate</A></B>(<A HREF="../../../../com/trolltech/qt/gui/QValidator.QValidationData.html" title="class in com.trolltech.qt.gui">QValidator.QValidationData</A> input)</CODE>
<BR>
Equivalent to <a href="QRegExpValidator.html#validate(com.trolltech.qt.gui.QValidator.QValidationData)">validate</tt></a>(<tt>input</tt>, ).</TD>
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<TH ALIGN="left"><B>Methods inherited from class com.trolltech.qt.gui.<A HREF="../../../../com/trolltech/qt/gui/QValidator.html" title="class in com.trolltech.qt.gui">QValidator</A></B></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../com/trolltech/qt/gui/QValidator.html#fixup(java.lang.String)">fixup</A>, <A HREF="../../../../com/trolltech/qt/gui/QValidator.html#locale()">locale</A>, <A HREF="../../../../com/trolltech/qt/gui/QValidator.html#setLocale(com.trolltech.qt.core.QLocale)">setLocale</A></CODE></TD>
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<TD><CODE><A HREF="../../../../com/trolltech/qt/core/QObject.html#blockSignals(boolean)">blockSignals</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#childEvent(com.trolltech.qt.core.QChildEvent)">childEvent</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#children()">children</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#connectSlotsByName()">connectSlotsByName</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#customEvent(com.trolltech.qt.core.QEvent)">customEvent</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#disposeLater()">disposeLater</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#dumpObjectInfo()">dumpObjectInfo</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#dumpObjectTree()">dumpObjectTree</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#dynamicPropertyNames()">dynamicPropertyNames</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#event(com.trolltech.qt.core.QEvent)">event</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#eventFilter(com.trolltech.qt.core.QObject, com.trolltech.qt.core.QEvent)">eventFilter</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#findChild()">findChild</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#findChild(java.lang.Class)">findChild</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#findChild(java.lang.Class, java.lang.String)">findChild</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#findChildren()">findChildren</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#findChildren(java.lang.Class)">findChildren</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#findChildren(java.lang.Class, com.trolltech.qt.core.QRegExp)">findChildren</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#findChildren(java.lang.Class, java.lang.String)">findChildren</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#installEventFilter(com.trolltech.qt.core.QObject)">installEventFilter</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#isWidgetType()">isWidgetType</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#killTimer(int)">killTimer</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#moveToThread(java.lang.Thread)">moveToThread</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#objectName()">objectName</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#parent()">parent</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#property(java.lang.String)">property</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#removeEventFilter(com.trolltech.qt.core.QObject)">removeEventFilter</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#setObjectName(java.lang.String)">setObjectName</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#setParent(com.trolltech.qt.core.QObject)">setParent</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#setProperty(java.lang.String, java.lang.Object)">setProperty</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#signalsBlocked()">signalsBlocked</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#startTimer(int)">startTimer</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#thread()">thread</A>, <A HREF="../../../../com/trolltech/qt/core/QObject.html#timerEvent(com.trolltech.qt.core.QTimerEvent)">timerEvent</A></CODE></TD>
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<A NAME="methods_inherited_from_class_com.trolltech.qt.QtJambiObject"><!-- --></A>
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<TH ALIGN="left"><B>Methods inherited from class com.trolltech.qt.<A HREF="../../../../com/trolltech/qt/QtJambiObject.html" title="class in com.trolltech.qt">QtJambiObject</A></B></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../com/trolltech/qt/QtJambiObject.html#dispose()">dispose</A>, <A HREF="../../../../com/trolltech/qt/QtJambiObject.html#disposed()">disposed</A>, <A HREF="../../../../com/trolltech/qt/QtJambiObject.html#finalize()">finalize</A>, <A HREF="../../../../com/trolltech/qt/QtJambiObject.html#reassignNativeResources(com.trolltech.qt.QtJambiObject, java.lang.Class)">reassignNativeResources</A>, <A HREF="../../../../com/trolltech/qt/QtJambiObject.html#tr(java.lang.String)">tr</A>, <A HREF="../../../../com/trolltech/qt/QtJambiObject.html#tr(java.lang.String, java.lang.String)">tr</A>, <A HREF="../../../../com/trolltech/qt/QtJambiObject.html#tr(java.lang.String, java.lang.String, int)">tr</A></CODE></TD>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left"><B>Methods inherited from class com.trolltech.qt.<A HREF="../../../../com/trolltech/qt/QSignalEmitter.html" title="class in com.trolltech.qt">QSignalEmitter</A></B></TH>
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<TD><CODE><A HREF="../../../../com/trolltech/qt/QSignalEmitter.html#disconnect()">disconnect</A>, <A HREF="../../../../com/trolltech/qt/QSignalEmitter.html#disconnect(java.lang.Object)">disconnect</A>, <A HREF="../../../../com/trolltech/qt/QSignalEmitter.html#signalSender()">signalSender</A></CODE></TD>
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<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
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<TD><CODE>clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left"><B>Methods inherited from interface com.trolltech.qt.<A HREF="../../../../com/trolltech/qt/QtJambiInterface.html" title="interface in com.trolltech.qt">QtJambiInterface</A></B></TH>
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<TD><CODE><A HREF="../../../../com/trolltech/qt/QtJambiInterface.html#disableGarbageCollection()">disableGarbageCollection</A>, <A HREF="../../../../com/trolltech/qt/QtJambiInterface.html#nativeId()">nativeId</A>, <A HREF="../../../../com/trolltech/qt/QtJambiInterface.html#nativePointer()">nativePointer</A>, <A HREF="../../../../com/trolltech/qt/QtJambiInterface.html#reenableGarbageCollection()">reenableGarbageCollection</A>, <A HREF="../../../../com/trolltech/qt/QtJambiInterface.html#setJavaOwnership()">setJavaOwnership</A></CODE></TD>
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<A NAME="QRegExpValidator(com.trolltech.qt.core.QObject)"><!-- --></A><H3>
QRegExpValidator</H3>
<PRE>
public <B>QRegExpValidator</B>(<A HREF="../../../../com/trolltech/qt/core/QObject.html" title="class in com.trolltech.qt.core">QObject</A> parent)</PRE>
<DL>
<DD><p>Constructs a validator with a <tt>parent</tt> object that accepts any string (including an empty one) as valid.</p>
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<A NAME="QRegExpValidator(com.trolltech.qt.core.QRegExp, com.trolltech.qt.core.QObject)"><!-- --></A><H3>
QRegExpValidator</H3>
<PRE>
public <B>QRegExpValidator</B>(<A HREF="../../../../com/trolltech/qt/core/QRegExp.html" title="class in com.trolltech.qt.core">QRegExp</A> rx,
<A HREF="../../../../com/trolltech/qt/core/QObject.html" title="class in com.trolltech.qt.core">QObject</A> parent)</PRE>
<DL>
<DD><p>Constructs a validator with a <tt>parent</tt> object that accepts all strings that match the regular expression <tt>rx</tt>.</p>
<p>The match is made against the entire string; e.g. if the regexp is <b>[A-Fa-f0-9]+</b> it will be treated as <b>^[A-Fa-f0-9]+$</b>.</p>
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<A NAME="regExp()"><!-- --></A><H3>
regExp</H3>
<PRE>
public final <A HREF="../../../../com/trolltech/qt/core/QRegExp.html" title="class in com.trolltech.qt.core">QRegExp</A> <B>regExp</B>()</PRE>
<DL>
<DD><p>Returns the regular expression used for validation.</p>
<P>
<DD><DL>
<DT><B>See Also:</B><DD><a href="QRegExpValidator.html#setRegExp(com.trolltech.qt.core.QRegExp)"><tt>setRegExp</tt></a></DL>
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</DL>
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<A NAME="setRegExp(com.trolltech.qt.core.QRegExp)"><!-- --></A><H3>
setRegExp</H3>
<PRE>
public final void <B>setRegExp</B>(<A HREF="../../../../com/trolltech/qt/core/QRegExp.html" title="class in com.trolltech.qt.core">QRegExp</A> rx)</PRE>
<DL>
<DD><p>Sets the regular expression used for validation to <tt>rx</tt>.</p>
<P>
<DD><DL>
<DT><B>See Also:</B><DD><a href="QRegExpValidator.html#regExp()"><tt>regExp</tt></a></DL>
</DD>
</DL>
<HR>
<A NAME="validate(com.trolltech.qt.gui.QValidator.QValidationData)"><!-- --></A><H3>
validate</H3>
<PRE>
public <A HREF="../../../../com/trolltech/qt/gui/QValidator.State.html" title="enum in com.trolltech.qt.gui">QValidator.State</A> <B>validate</B>(<A HREF="../../../../com/trolltech/qt/gui/QValidator.QValidationData.html" title="class in com.trolltech.qt.gui">QValidator.QValidationData</A> input)</PRE>
<DL>
<DD><p>Equivalent to <a href="QRegExpValidator.html#validate(com.trolltech.qt.gui.QValidator.QValidationData)">validate</tt></a>(<tt>input</tt>, ).
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/trolltech/qt/gui/QValidator.html#validate(com.trolltech.qt.gui.QValidator.QValidationData)">validate</A></CODE> in class <CODE><A HREF="../../../../com/trolltech/qt/gui/QValidator.html" title="class in com.trolltech.qt.gui">QValidator</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="fromNativePointer(com.trolltech.qt.QNativePointer)"><!-- --></A><H3>
fromNativePointer</H3>
<PRE>
public static <A HREF="../../../../com/trolltech/qt/gui/QRegExpValidator.html" title="class in com.trolltech.qt.gui">QRegExpValidator</A> <B>fromNativePointer</B>(<A HREF="../../../../com/trolltech/qt/QNativePointer.html" title="class in com.trolltech.qt">QNativePointer</A> nativePointer)</PRE>
<DL>
<DD>This function returns the QRegExpValidator instance pointed to by nativePointer
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>nativePointer</CODE> - the QNativePointer of which object should be returned.</DL>
</DD>
</DL>
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