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QWhatsThis
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SUMMARY: <A HREF="#nested_classes_inherited_from_class_com.trolltech.qt.QSignalEmitter">NESTED</A> | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD>
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com.trolltech.qt.gui</FONT>
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Class QWhatsThis</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>
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>com.trolltech.qt.gui.QWhatsThis</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../com/trolltech/qt/QtJambiInterface.html" title="interface in com.trolltech.qt">QtJambiInterface</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public final class <B>QWhatsThis</B><DT>extends <A HREF="../../../../com/trolltech/qt/QtJambiObject.html" title="class in com.trolltech.qt">QtJambiObject</A></DL>
</PRE>
<P>
<p>The <a href="QWhatsThis.html"><tt>QWhatsThis</tt></a> class provides a simple description of any widget, i.e. answering the question "What's This?".</p>
<p>"What's This?" help is part of an application's online help system, and provides users with information about the functionality and usage of a particular widget. "What's This?" help texts are typically longer and more detailed than <a href="QToolTip.html">tooltips</tt></a>, but generally provide less information than that supplied by separate help windows.</p>
<p><a href="QWhatsThis.html"><tt>QWhatsThis</tt></a> provides a single window with an explanatory text that pops up when the user asks "What's This?". The default way for users to ask the question is to move the focus to the relevant widget and press Shift+F1. The help text appears immediately; it goes away as soon as the user does something else. (Note that if there is a shortcut for Shift+F1, this mechanism will not work.) Some dialogs provide a "?" button that users can click to enter "What's This?" mode; they then click the relevant widget to pop up the "What's This?" window. It is also possible to provide a a menu option or toolbar button to switch into "What's This?" mode.</p>
<p>To add "What's This?" text to a widget or an action, you simply call QWidget::setWhatsThis() or QAction::setWhatsThis().</p>
<p>The text can be either rich text or plain text. If you specify a rich text formatted string, it will be rendered using the default stylesheet, making it possible to embed images in the displayed text. To be as fast as possible, the default stylesheet uses a simple method to determine whether the text can be rendered as plain text. See Qt::mightBeRichText() for details.</p>
<pre> newAct = new QAction(tr("&New"), this);
newAct->setShortcut(tr("Ctrl+N"));
newAct->setStatusTip(tr("Create a new file"));
newAct->setWhatsThis(tr("Click this option to create a new file."));</pre>
<p>An alternative way to enter "What's This?" mode is to call <a href="QWhatsThis.html#createAction(com.trolltech.qt.core.QObject)"><tt>createAction</tt></a>, and add the returned <a href="QAction.html"><tt>QAction</tt></a> to either a menu or a tool bar. By invoking this context help action (in the picture below, the button with the arrow and question mark icon) the user switches into "What's This?" mode. If they now click on a widget the appropriate help text is shown. The mode is left when help is given or when the user presses Esc.</p>
<p align="center"><img src="%2E%2E/images/whatsthis.png" /></p><p>You can enter "What's This?" mode programmatically with <a href="QWhatsThis.html#enterWhatsThisMode()"><tt>enterWhatsThisMode</tt></a>, check the mode with <a href="QWhatsThis.html#inWhatsThisMode()"><tt>inWhatsThisMode</tt></a>, and return to normal mode with <a href="QWhatsThis.html#leaveWhatsThisMode()"><tt>leaveWhatsThisMode</tt></a>.</p>
<p>If you want to control the "What's This?" behavior of a widget manually see Qt::WA_CustomWhatsThis.</p>
<p>It is also possible to show different help texts for different regions of a widget, by using a <a href="QHelpEvent.html"><tt>QHelpEvent</tt></a> of type QEvent::WhatsThis. Intercept the help event in your widget's QWidget::event() function and call QWhatsThis::showText() with the text you want to display for the position specified in QHelpEvent::pos(). If the text is rich text and the user clicks on a link, the widget also receives a <a href="QWhatsThisClickedEvent.html"><tt>QWhatsThisClickedEvent</tt></a> with the link's reference as QWhatsThisClickedEvent::href(). If a <a href="QWhatsThisClickedEvent.html"><tt>QWhatsThisClickedEvent</tt></a> is handled (i.e. QWidget::event() returns true), the help window remains visible. Call QWhatsThis::hideText() to hide it explicitly.</p>
<P>
<P>
<DL>
<DT><B>See Also:</B><DD><a href="QToolTip.html"><tt>QToolTip</tt></a></DL>
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<P>
<!-- ======== NESTED CLASS SUMMARY ======== -->
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<A NAME="nested_classes_inherited_from_class_com.trolltech.qt.QSignalEmitter"><!-- --></A>
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<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Nested classes/interfaces inherited from class com.trolltech.qt.<A HREF="../../../../com/trolltech/qt/QSignalEmitter.html" title="class in com.trolltech.qt">QSignalEmitter</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal0.html" title="class in com.trolltech.qt">QSignalEmitter.Signal0</A>, <A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal1.html" title="class in com.trolltech.qt">QSignalEmitter.Signal1</A><<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal1.html" title="type parameter in QSignalEmitter.Signal1">A</A>>, <A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal2.html" title="class in com.trolltech.qt">QSignalEmitter.Signal2</A><<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal2.html" title="type parameter in QSignalEmitter.Signal2">A</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal2.html" title="type parameter in QSignalEmitter.Signal2">B</A>>, <A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal3.html" title="class in com.trolltech.qt">QSignalEmitter.Signal3</A><<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal3.html" title="type parameter in QSignalEmitter.Signal3">A</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal3.html" title="type parameter in QSignalEmitter.Signal3">B</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal3.html" title="type parameter in QSignalEmitter.Signal3">C</A>>, <A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal4.html" title="class in com.trolltech.qt">QSignalEmitter.Signal4</A><<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal4.html" title="type parameter in QSignalEmitter.Signal4">A</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal4.html" title="type parameter in QSignalEmitter.Signal4">B</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal4.html" title="type parameter in QSignalEmitter.Signal4">C</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal4.html" title="type parameter in QSignalEmitter.Signal4">D</A>>, <A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal5.html" title="class in com.trolltech.qt">QSignalEmitter.Signal5</A><<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal5.html" title="type parameter in QSignalEmitter.Signal5">A</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal5.html" title="type parameter in QSignalEmitter.Signal5">B</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal5.html" title="type parameter in QSignalEmitter.Signal5">C</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal5.html" title="type parameter in QSignalEmitter.Signal5">D</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal5.html" title="type parameter in QSignalEmitter.Signal5">E</A>>, <A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal6.html" title="class in com.trolltech.qt">QSignalEmitter.Signal6</A><<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal6.html" title="type parameter in QSignalEmitter.Signal6">A</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal6.html" title="type parameter in QSignalEmitter.Signal6">B</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal6.html" title="type parameter in QSignalEmitter.Signal6">C</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal6.html" title="type parameter in QSignalEmitter.Signal6">D</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal6.html" title="type parameter in QSignalEmitter.Signal6">E</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal6.html" title="type parameter in QSignalEmitter.Signal6">F</A>>, <A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal7.html" title="class in com.trolltech.qt">QSignalEmitter.Signal7</A><<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal7.html" title="type parameter in QSignalEmitter.Signal7">A</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal7.html" title="type parameter in QSignalEmitter.Signal7">B</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal7.html" title="type parameter in QSignalEmitter.Signal7">C</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal7.html" title="type parameter in QSignalEmitter.Signal7">D</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal7.html" title="type parameter in QSignalEmitter.Signal7">E</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal7.html" title="type parameter in QSignalEmitter.Signal7">F</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal7.html" title="type parameter in QSignalEmitter.Signal7">G</A>>, <A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal8.html" title="class in com.trolltech.qt">QSignalEmitter.Signal8</A><<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal8.html" title="type parameter in QSignalEmitter.Signal8">A</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal8.html" title="type parameter in QSignalEmitter.Signal8">B</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal8.html" title="type parameter in QSignalEmitter.Signal8">C</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal8.html" title="type parameter in QSignalEmitter.Signal8">D</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal8.html" title="type parameter in QSignalEmitter.Signal8">E</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal8.html" title="type parameter in QSignalEmitter.Signal8">F</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal8.html" title="type parameter in QSignalEmitter.Signal8">G</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal8.html" title="type parameter in QSignalEmitter.Signal8">H</A>>, <A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal9.html" title="class in com.trolltech.qt">QSignalEmitter.Signal9</A><<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal9.html" title="type parameter in QSignalEmitter.Signal9">A</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal9.html" title="type parameter in QSignalEmitter.Signal9">B</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal9.html" title="type parameter in QSignalEmitter.Signal9">C</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal9.html" title="type parameter in QSignalEmitter.Signal9">D</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal9.html" title="type parameter in QSignalEmitter.Signal9">E</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal9.html" title="type parameter in QSignalEmitter.Signal9">F</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal9.html" title="type parameter in QSignalEmitter.Signal9">G</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal9.html" title="type parameter in QSignalEmitter.Signal9">H</A>,<A HREF="../../../../com/trolltech/qt/QSignalEmitter.Signal9.html" title="type parameter in QSignalEmitter.Signal9">I</A>></CODE></TD>
</TR>
</TABLE>
<!-- ========== METHOD SUMMARY =========== -->
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<B>Method Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static <A HREF="../../../../com/trolltech/qt/gui/QAction.html" title="class in com.trolltech.qt.gui">QAction</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QWhatsThis.html#createAction()">createAction</A></B>()</CODE>
<BR>
Equivalent to <a href="QWhatsThis.html#createAction(com.trolltech.qt.core.QObject)"><tt>createAction</tt></a>(0).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static <A HREF="../../../../com/trolltech/qt/gui/QAction.html" title="class in com.trolltech.qt.gui">QAction</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QWhatsThis.html#createAction(com.trolltech.qt.core.QObject)">createAction</A></B>(<A HREF="../../../../com/trolltech/qt/core/QObject.html" title="class in com.trolltech.qt.core">QObject</A> parent)</CODE>
<BR>
Returns a ready-made <a href="QAction.html"><tt>QAction</tt></a>, used to invoke "What's This?" context help, with the given <tt>parent</tt>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QWhatsThis.html#enterWhatsThisMode()">enterWhatsThisMode</A></B>()</CODE>
<BR>
This function switches the user interface into "What's This?" mode.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static <A HREF="../../../../com/trolltech/qt/gui/QWhatsThis.html" title="class in com.trolltech.qt.gui">QWhatsThis</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QWhatsThis.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 QWhatsThis instance pointed to by nativePointer</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QWhatsThis.html#hideText()">hideText</A></B>()</CODE>
<BR>
If a "What's This?" window is showing, this destroys it.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QWhatsThis.html#inWhatsThisMode()">inWhatsThisMode</A></B>()</CODE>
<BR>
Returns true if the user interface is in "What's This?" mode; otherwise returns false.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QWhatsThis.html#leaveWhatsThisMode()">leaveWhatsThisMode</A></B>()</CODE>
<BR>
If the user interface is in "What's This?" mode, this function switches back to normal mode; otherwise it does nothing.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QWhatsThis.html#showText(com.trolltech.qt.core.QPoint, java.lang.String)">showText</A></B>(<A HREF="../../../../com/trolltech/qt/core/QPoint.html" title="class in com.trolltech.qt.core">QPoint</A> pos,
java.lang.String text)</CODE>
<BR>
Equivalent to <a href="QWhatsThis.html#showText(com.trolltech.qt.core.QPoint, java.lang.String, com.trolltech.qt.gui.QWidget)"><tt>showText</tt></a>(<tt>pos</tt>, <tt>text</tt>, 0).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/gui/QWhatsThis.html#showText(com.trolltech.qt.core.QPoint, java.lang.String, com.trolltech.qt.gui.QWidget)">showText</A></B>(<A HREF="../../../../com/trolltech/qt/core/QPoint.html" title="class in com.trolltech.qt.core">QPoint</A> pos,
java.lang.String text,
<A HREF="../../../../com/trolltech/qt/gui/QWidget.html" title="class in com.trolltech.qt.gui">QWidget</A> w)</CODE>
<BR>
Shows <tt>text</tt> as a "What's This?" window, at global position <tt>pos</tt>.</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_com.trolltech.qt.QtJambiObject"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<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>
</TR>
<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>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_com.trolltech.qt.QSignalEmitter"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<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>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../com/trolltech/qt/QSignalEmitter.html#blockSignals(boolean)">blockSignals</A>, <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#signalsBlocked()">signalsBlocked</A>, <A HREF="../../../../com/trolltech/qt/QSignalEmitter.html#signalSender()">signalSender</A>, <A HREF="../../../../com/trolltech/qt/QSignalEmitter.html#thread()">thread</A></CODE></TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_com.trolltech.qt.QtJambiInterface"><!-- --></A>
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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="createAction()"><!-- --></A><H3>
createAction</H3>
<PRE>
public static <A HREF="../../../../com/trolltech/qt/gui/QAction.html" title="class in com.trolltech.qt.gui">QAction</A> <B>createAction</B>()</PRE>
<DL>
<DD><p>Equivalent to <a href="QWhatsThis.html#createAction(com.trolltech.qt.core.QObject)"><tt>createAction</tt></a>(0).
<P>
<DD><DL>
</DL>
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<A NAME="createAction(com.trolltech.qt.core.QObject)"><!-- --></A><H3>
createAction</H3>
<PRE>
public static <A HREF="../../../../com/trolltech/qt/gui/QAction.html" title="class in com.trolltech.qt.gui">QAction</A> <B>createAction</B>(<A HREF="../../../../com/trolltech/qt/core/QObject.html" title="class in com.trolltech.qt.core">QObject</A> parent)</PRE>
<DL>
<DD><p>Returns a ready-made <a href="QAction.html"><tt>QAction</tt></a>, used to invoke "What's This?" context help, with the given <tt>parent</tt>.</p>
<p>The returned <a href="QAction.html"><tt>QAction</tt></a> provides a convenient way to let users enter "What's This?" mode.</p>
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<DD><DL>
</DL>
</DD>
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<A NAME="enterWhatsThisMode()"><!-- --></A><H3>
enterWhatsThisMode</H3>
<PRE>
public static void <B>enterWhatsThisMode</B>()</PRE>
<DL>
<DD><p>This function switches the user interface into "What's This?" mode. The user interface can be switched back into normal mode by the user (e.g. by them clicking or pressing Esc), or programmatically by calling <a href="QWhatsThis.html#leaveWhatsThisMode()"><tt>leaveWhatsThisMode</tt></a>.</p>
<p>When entering "What's This?" mode, a <a href="%2E%2E/core/QEvent.html"><tt>QEvent</tt></a> of type Qt::EnterWhatsThisMode is sent to all toplevel widgets.</p>
<P>
<DD><DL>
<DT><B>See Also:</B><DD><a href="QWhatsThis.html#inWhatsThisMode()"><tt>inWhatsThisMode</tt></a>,
<a href="QWhatsThis.html#leaveWhatsThisMode()"><tt>leaveWhatsThisMode</tt></a></DL>
</DD>
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<A NAME="hideText()"><!-- --></A><H3>
hideText</H3>
<PRE>
public static void <B>hideText</B>()</PRE>
<DL>
<DD><p>If a "What's This?" window is showing, this destroys it.</p>
<P>
<DD><DL>
<DT><B>See Also:</B><DD><a href="QWhatsThis.html#showText(com.trolltech.qt.core.QPoint, java.lang.String, com.trolltech.qt.gui.QWidget)"><tt>showText</tt></a></DL>
</DD>
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<A NAME="inWhatsThisMode()"><!-- --></A><H3>
inWhatsThisMode</H3>
<PRE>
public static boolean <B>inWhatsThisMode</B>()</PRE>
<DL>
<DD><p>Returns true if the user interface is in "What's This?" mode; otherwise returns false.</p>
<P>
<DD><DL>
<DT><B>See Also:</B><DD><a href="QWhatsThis.html#enterWhatsThisMode()"><tt>enterWhatsThisMode</tt></a></DL>
</DD>
</DL>
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<A NAME="leaveWhatsThisMode()"><!-- --></A><H3>
leaveWhatsThisMode</H3>
<PRE>
public static void <B>leaveWhatsThisMode</B>()</PRE>
<DL>
<DD><p>If the user interface is in "What's This?" mode, this function switches back to normal mode; otherwise it does nothing.</p>
<p>When leaving "What's This?" mode, a <a href="%2E%2E/core/QEvent.html"><tt>QEvent</tt></a> of type Qt::LeaveWhatsThisMode is sent to all toplevel widgets.</p>
<P>
<DD><DL>
<DT><B>See Also:</B><DD><a href="QWhatsThis.html#enterWhatsThisMode()"><tt>enterWhatsThisMode</tt></a>,
<a href="QWhatsThis.html#inWhatsThisMode()"><tt>inWhatsThisMode</tt></a></DL>
</DD>
</DL>
<HR>
<A NAME="showText(com.trolltech.qt.core.QPoint, java.lang.String)"><!-- --></A><H3>
showText</H3>
<PRE>
public static void <B>showText</B>(<A HREF="../../../../com/trolltech/qt/core/QPoint.html" title="class in com.trolltech.qt.core">QPoint</A> pos,
java.lang.String text)</PRE>
<DL>
<DD><p>Equivalent to <a href="QWhatsThis.html#showText(com.trolltech.qt.core.QPoint, java.lang.String, com.trolltech.qt.gui.QWidget)"><tt>showText</tt></a>(<tt>pos</tt>, <tt>text</tt>, 0).
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="showText(com.trolltech.qt.core.QPoint, java.lang.String, com.trolltech.qt.gui.QWidget)"><!-- --></A><H3>
showText</H3>
<PRE>
public static void <B>showText</B>(<A HREF="../../../../com/trolltech/qt/core/QPoint.html" title="class in com.trolltech.qt.core">QPoint</A> pos,
java.lang.String text,
<A HREF="../../../../com/trolltech/qt/gui/QWidget.html" title="class in com.trolltech.qt.gui">QWidget</A> w)</PRE>
<DL>
<DD><p>Shows <tt>text</tt> as a "What's This?" window, at global position <tt>pos</tt>. The optional widget argument, <tt>w</tt>, is used to determine the appropriate screen on multi-head systems.</p>
<P>
<DD><DL>
<DT><B>See Also:</B><DD><a href="QWhatsThis.html#hideText()"><tt>hideText</tt></a></DL>
</DD>
</DL>
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<A NAME="fromNativePointer(com.trolltech.qt.QNativePointer)"><!-- --></A><H3>
fromNativePointer</H3>
<PRE>
public static <A HREF="../../../../com/trolltech/qt/gui/QWhatsThis.html" title="class in com.trolltech.qt.gui">QWhatsThis</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 QWhatsThis 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>
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