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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QComboBox Class Reference</h1>
<p>The QComboBox widget is a combined button and popup list.
<a href="#details">More...</a>
<p><tt>#include <<a href="qcombobox-h.html">qcombobox.h</a>></tt>
<p>Inherits <a href="qwidget.html">QWidget</a>.
<p><a href="qcombobox-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li><div class=fn><a href="#QComboBox"><b>QComboBox</b></a> ( QWidget * parent = 0, const char * name = 0 )</div></li>
<li><div class=fn><a href="#QComboBox-2"><b>QComboBox</b></a> ( bool rw, QWidget * parent = 0, const char * name = 0 )</div></li>
<li><div class=fn><a href="#~QComboBox"><b>~QComboBox</b></a> ()</div></li>
<li><div class=fn>int <a href="#count"><b>count</b></a> () const</div></li>
<li><div class=fn>void <a href="#insertStringList"><b>insertStringList</b></a> ( const QStringList & list, int index = -1 )</div></li>
<li><div class=fn>void <a href="#insertStrList-2"><b>insertStrList</b></a> ( const QStrList & list, int index = -1 )</div></li>
<li><div class=fn>void <a href="#insertStrList-3"><b>insertStrList</b></a> ( const QStrList * list, int index = -1 )</div></li>
<li><div class=fn>void <a href="#insertStrList"><b>insertStrList</b></a> ( const char ** strings, int numStrings = -1, int index = -1 )</div></li>
<li><div class=fn>void <a href="#insertItem"><b>insertItem</b></a> ( const QString & t, int index = -1 )</div></li>
<li><div class=fn>void <a href="#insertItem-2"><b>insertItem</b></a> ( const QPixmap & pixmap, int index = -1 )</div></li>
<li><div class=fn>void <a href="#insertItem-3"><b>insertItem</b></a> ( const QPixmap & pixmap, const QString & text, int index = -1 )</div></li>
<li><div class=fn>void <a href="#removeItem"><b>removeItem</b></a> ( int index )</div></li>
<li><div class=fn>int <a href="#currentItem"><b>currentItem</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setCurrentItem"><b>setCurrentItem</b></a> ( int index )</div></li>
<li><div class=fn>QString <a href="#currentText"><b>currentText</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setCurrentText"><b>setCurrentText</b></a> ( const QString & )</div></li>
<li><div class=fn>QString <a href="#text"><b>text</b></a> ( int index ) const</div></li>
<li><div class=fn>const QPixmap * <a href="#pixmap"><b>pixmap</b></a> ( int index ) const</div></li>
<li><div class=fn>void <a href="#changeItem"><b>changeItem</b></a> ( const QString & t, int index )</div></li>
<li><div class=fn>void <a href="#changeItem-2"><b>changeItem</b></a> ( const QPixmap & im, int index )</div></li>
<li><div class=fn>void <a href="#changeItem-3"><b>changeItem</b></a> ( const QPixmap & im, const QString & t, int index )</div></li>
<li><div class=fn>bool autoResize () const <em>(obsolete)</em></div></li>
<li><div class=fn>virtual void setAutoResize ( bool ) <em>(obsolete)</em></div></li>
<li><div class=fn>virtual void <a href="#setPalette"><b>setPalette</b></a> ( const QPalette & palette )</div></li>
<li><div class=fn>virtual void <a href="#setFont"><b>setFont</b></a> ( const QFont & font )</div></li>
<li><div class=fn>virtual void <a href="#setSizeLimit"><b>setSizeLimit</b></a> ( int )</div></li>
<li><div class=fn>int <a href="#sizeLimit"><b>sizeLimit</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setMaxCount"><b>setMaxCount</b></a> ( int )</div></li>
<li><div class=fn>int <a href="#maxCount"><b>maxCount</b></a> () const</div></li>
<li><div class=fn>enum <a href="#Policy-enum"><b>Policy</b></a> { NoInsertion, AtTop, AtCurrent, AtBottom, AfterCurrent, BeforeCurrent }</div></li>
<li><div class=fn>virtual void <a href="#setInsertionPolicy"><b>setInsertionPolicy</b></a> ( Policy policy )</div></li>
<li><div class=fn>Policy <a href="#insertionPolicy"><b>insertionPolicy</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setValidator"><b>setValidator</b></a> ( const QValidator * v )</div></li>
<li><div class=fn>const QValidator * <a href="#validator"><b>validator</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setListBox"><b>setListBox</b></a> ( QListBox * newListBox )</div></li>
<li><div class=fn>QListBox * <a href="#listBox"><b>listBox</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setLineEdit"><b>setLineEdit</b></a> ( QLineEdit * edit )</div></li>
<li><div class=fn>QLineEdit * <a href="#lineEdit"><b>lineEdit</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setAutoCompletion"><b>setAutoCompletion</b></a> ( bool )</div></li>
<li><div class=fn>bool <a href="#autoCompletion"><b>autoCompletion</b></a> () const</div></li>
<li><div class=fn>void <a href="#setDuplicatesEnabled"><b>setDuplicatesEnabled</b></a> ( bool enable )</div></li>
<li><div class=fn>bool <a href="#duplicatesEnabled"><b>duplicatesEnabled</b></a> () const</div></li>
<li><div class=fn>bool <a href="#editable"><b>editable</b></a> () const</div></li>
<li><div class=fn>void <a href="#setEditable"><b>setEditable</b></a> ( bool )</div></li>
<li><div class=fn>virtual void <a href="#popup"><b>popup</b></a> ()</div></li>
</ul>
<h2>Public Slots</h2>
<ul>
<li><div class=fn>void <a href="#clear"><b>clear</b></a> ()</div></li>
<li><div class=fn>void <a href="#clearValidator"><b>clearValidator</b></a> ()</div></li>
<li><div class=fn>void <a href="#clearEdit"><b>clearEdit</b></a> ()</div></li>
<li><div class=fn>virtual void <a href="#setEditText"><b>setEditText</b></a> ( const QString & newText )</div></li>
</ul>
<h2>Signals</h2>
<ul>
<li><div class=fn>void <a href="#activated"><b>activated</b></a> ( int index )</div></li>
<li><div class=fn>void <a href="#highlighted"><b>highlighted</b></a> ( int index )</div></li>
<li><div class=fn>void <a href="#activated-2"><b>activated</b></a> ( const QString & string )</div></li>
<li><div class=fn>void <a href="#highlighted-2"><b>highlighted</b></a> ( const QString & string )</div></li>
<li><div class=fn>void <a href="#textChanged"><b>textChanged</b></a> ( const QString & string )</div></li>
</ul>
<h2>Properties</h2>
<ul>
<li><div class=fn>bool <a href="#autoCompletion-prop"><b>autoCompletion</b></a> - whether auto-completion is enabled</div></li>
<li><div class=fn>bool <a href="#autoMask-prop"><b>autoMask</b></a> - whether the combobox is automatically masked <em>(read only)</em></div></li>
<li><div class=fn>bool autoResize - whether auto resize is enabled <em>(obsolete)</em></div></li>
<li><div class=fn>int <a href="#count-prop"><b>count</b></a> - the number of items in the combobox <em>(read only)</em></div></li>
<li><div class=fn>int <a href="#currentItem-prop"><b>currentItem</b></a> - the index of the current item in the combobox</div></li>
<li><div class=fn>QString <a href="#currentText-prop"><b>currentText</b></a> - the text of the combobox's current item</div></li>
<li><div class=fn>bool <a href="#duplicatesEnabled-prop"><b>duplicatesEnabled</b></a> - whether duplicates are allowed</div></li>
<li><div class=fn>bool <a href="#editable-prop"><b>editable</b></a> - whether the combobox is editable</div></li>
<li><div class=fn>Policy <a href="#insertionPolicy-prop"><b>insertionPolicy</b></a> - the position of the items inserted by the user</div></li>
<li><div class=fn>int <a href="#maxCount-prop"><b>maxCount</b></a> - the maximum number of items allowed in the combobox</div></li>
<li><div class=fn>int <a href="#sizeLimit-prop"><b>sizeLimit</b></a> - the maximum on-screen size of the combobox</div></li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>
The QComboBox widget is a combined button and popup list.
<p>
<p> A combobox is a selection widget which displays the current item and
can pop up a list of items. A combobox may be editable in which case
the user can enter arbitrary strings.
<p> Since comboboxes occupy little screen space and always display the
current item, they are well suited to displaying items that the user
will want to see, such as font family or size. Using a combobox the
user can always see which item they've selected with the minimum amount
of screen space being used.
<p> QComboBox supports three different display styles: Aqua/Motif 1.x, Motif 2.0
and Windows 95. In Motif 1.x, a combobox was called XmOptionMenu.
In Motif 2.0, OSF introduced an improved combobox and
named that XmComboBox. QComboBox provides both.
<p> QComboBox provides two different constructors. The simplest
constructor creates an old-style combobox in Motif (or Aqua) style:
<pre>
QComboBox *c = new QComboBox( this, "read-only combobox" );
</pre>
<p> The other constructor creates a new-style combobox in Motif style, and
can create both read-only and read-write comboboxes:
<pre>
QComboBox *c1 = new QComboBox( FALSE, this, "read-only combobox" );
QComboBox *c2 = new QComboBox( TRUE, this, "read-write combobox" );
</pre>
<p> New-style comboboxes use a list box in both Motif and Windows styles, and
both the content size and the on-screen size of the list box can be
limited with <a href="#sizeLimit">sizeLimit</a>() and <a href="#setMaxCount">setMaxCount</a>() respectively. Old-style
comboboxes use a popup in Aqua and Motif style, and that popup will
happily grow larger than the desktop if you put enough data into it.
<p> The two constructors create identical-looking comboboxes in Windows
style.
<p> Comboboxes can contain pixmaps as well as strings; the
<a href="#insertItem">insertItem</a>() and <a href="#changeItem">changeItem</a>() functions are suitably overloaded. For
read-write comboboxes, the function <a href="#clearEdit">clearEdit</a>()
is provided, to clear the displayed string without changing the
combobox's contents.
<p> A combobox emits two signals, <a href="#activated">activated</a>() and <a href="#highlighted">highlighted</a>(), when a
new item has been activated (selected) or highlighted (made
current). Both signals exist in two versions, one with a <a href="qstring.html">QString</a>
argument and one with an <tt>int</tt> argument. If the user highlights or
activates a pixmap, only the <tt>int</tt> signals are emitted. Whenever the
text of an editable combobox is changed the <a href="#textChanged">textChanged</a>() signal is
emitted.
<p> When the user enters a new string in a read-write combobox, the widget
may or may not insert it, and it can insert it in several locations.
The default policy is is <a href="#Policy-enum">AtBottom</a> but you can change this using
<a href="#setInsertionPolicy">setInsertionPolicy</a>().
<p> It is possible to constrain the input to an editable combobox using
<a href="qvalidator.html">QValidator</a>; see <a href="#setValidator">setValidator</a>(). By default, all input is accepted.
<p> If the combo box is not editable then it has a default <a href="qwidget.html#focusPolicy">focusPolicy</a>()
of <a href="qwidget.html#FocusPolicy-enum">TabFocus</a>, i.e. it will not grab focus if clicked. This
differs from both Windows and Motif. If the combo box is editable then it
has a default focusPolicy() of <a href="qwidget.html#FocusPolicy-enum">StrongFocus</a>, i.e. it will grab focus if
clicked.
<p> A combobox can be populated using the insert functions,
<a href="#insertStringList">insertStringList</a>() and <a href="#insertItem">insertItem</a>() for example. Items can be
changed with <a href="#changeItem">changeItem</a>(). An item can be removed with <a href="#removeItem">removeItem</a>()
and all items can be removed with <a href="#clear">clear</a>(). The text of the current
item is returned by <a href="#currentText">currentText</a>(), and the text of a numbered item
is returned with <a href="#text">text</a>(). The current item can be set with
<a href="#setCurrentItem">setCurrentItem</a>() or <a href="#setCurrentText">setCurrentText</a>(). The number of items in the
combobox is returned by <a href="#count">count</a>(); the maximum number of items can be
set with <a href="#setMaxCount">setMaxCount</a>(). You can allow editing using
<a href="#setEditable">setEditable</a>(). For editable comboboxes you can set auto-completion
using <a href="#setAutoCompletion">setAutoCompletion</a>() and whether or not the user can add
duplicates is set with <a href="#setDuplicatesEnabled">setDuplicatesEnabled</a>().
<p> <img src="qcombo1-m.png">(Motif 1, read-only)<br clear=all>
<img src="qcombo2-m.png">(Motif 2, read-write)<br clear=all>
<img src="qcombo3-m.png">(Motif 2, read-only)<br clear=all>
<img src="qcombo1-w.png">(Windows style)
<p> <p>See also <a href="qlineedit.html">QLineEdit</a>, <a href="qlistbox.html">QListBox</a>, <a href="qspinbox.html">QSpinBox</a>, <a href="qradiobutton.html">QRadioButton</a>, <a href="qbuttongroup.html">QButtonGroup</a>, <a href="guibooks.html#fowler">GUI Design Handbook: Combo Box</a>, <a href="guibooks.html#fowler">GUI Design Handbook: Drop-Down List Box</a> and <a href="basic.html">Basic Widgets</a>.
<hr><h2>Member Type Documentation</h2>
<h3 class=fn><a name="Policy-enum"></a>QComboBox::Policy</h3>
<p> This enum specifies what the QComboBox should do when a new string is
entered by the user. The following policies are defined:
<ul>
<li><tt>QComboBox::NoInsertion</tt> - the string will not be inserted into the combobox.
<li><tt>QComboBox::AtTop</tt> - insert the string as the first item in the combobox.
<li><tt>QComboBox::AtCurrent</tt> - replace the previously selected item with the string
the user has entered.
<li><tt>QComboBox::AtBottom</tt> - insert the string as the last item in the
combobox.
<li><tt>QComboBox::AfterCurrent</tt> - insert the string after the
previously selected item.
<li><tt>QComboBox::BeforeCurrent</tt> - insert the string before the
previously selected item.
</ul><p> <a href="#activated">activated</a>() is always emitted when the string is entered.
<p> If inserting the new string would cause the combobox to breach its
content size limit, the item at the other end of the list is deleted.
The definition of "other end" is implementation-dependent.
<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="QComboBox"></a>QComboBox::QComboBox ( <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0 )
</h3>
Constructs a combobox widget with parent <em>parent</em> and name <em>name</em>.
<p> This constructor creates a popup list if the program uses Motif (or Aqua)
look and feel; this is compatible with Motif 1.x and Aqua.
<h3 class=fn><a name="QComboBox-2"></a>QComboBox::QComboBox ( bool rw, <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0 )
</h3>
Constructs a combobox with a maximum size and either Motif 2.0 or
Windows look and feel.
<p> The input field can be edited if <em>rw</em> is TRUE, otherwise the user
may only choose one of the items in the combobox.
<p> The <em>parent</em> and <em>name</em> arguments are passed on to the <a href="qwidget.html">QWidget</a>
constructor.
<h3 class=fn><a name="~QComboBox"></a>QComboBox::~QComboBox ()
</h3>
Destroys the combobox.
<h3 class=fn>void <a name="activated"></a>QComboBox::activated ( int index )<tt> [signal]</tt>
</h3>
<p> This signal is emitted when a new item has been activated (selected).
The <em>index</em> is the position of the item in the combobox.
<p>Examples: <a href="fileiconview-example.html#x1590">fileiconview/mainwindow.cpp</a>, <a href="helpviewer-example.html#x1387">helpviewer/helpwindow.cpp</a>, <a href="lineedits-example.html#x1294">lineedits/lineedits.cpp</a>, <a href="listboxcombo-example.html#x1239">listboxcombo/listboxcombo.cpp</a>, <a href="ftpclient-example.html#x1003">network/ftpclient/ftpmainwindow.cpp</a> and <a href="qmag-example.html#x692">qmag/qmag.cpp</a>.
<h3 class=fn>void <a name="activated-2"></a>QComboBox::activated ( const <a href="qstring.html">QString</a> & string )<tt> [signal]</tt>
</h3> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> This signal is emitted when a new item has been activated
(selected). <em>string</em> is the selected string.
<p> You can also use the <a href="#activated">activated</a>(int) signal, but be aware that its
argument is meaningful only for selected strings, not for user entered
strings.
<h3 class=fn>bool <a name="autoCompletion"></a>QComboBox::autoCompletion () const
</h3><p>Returns TRUE if auto-completion is enabled; otherwise returns FALSE.
See the <a href="qcombobox.html#autoCompletion-prop">"autoCompletion"</a> property for details.
<h3 class=fn>bool <a name="autoResize"></a>QComboBox::autoResize () const
</h3><p>Returns TRUE if auto resize is enabled; otherwise returns FALSE.
See the <a href="qcombobox.html#autoResize-prop">"autoResize"</a> property for details.
<h3 class=fn>void <a name="changeItem"></a>QComboBox::changeItem ( const <a href="qstring.html">QString</a> & t, int index )
</h3>
Replaces the item at position <em>index</em> with the text <em>t</em>.
<h3 class=fn>void <a name="changeItem-2"></a>QComboBox::changeItem ( const <a href="qpixmap.html">QPixmap</a> & im, int index )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Replaces the item at position <em>index</em> with the pixmap <em>im</em>, unless
the combobox is editable.
<p> <p>See also <a href="#insertItem">insertItem</a>().
<h3 class=fn>void <a name="changeItem-3"></a>QComboBox::changeItem ( const <a href="qpixmap.html">QPixmap</a> & im, const <a href="qstring.html">QString</a> & t, int index )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Replaces the item at position <em>index</em> with the pixmap <em>im</em> and the
text <em>t</em>.
<p> <p>See also <a href="#insertItem">insertItem</a>().
<h3 class=fn>void <a name="clear"></a>QComboBox::clear ()<tt> [slot]</tt>
</h3>
Removes all combobox items.
<h3 class=fn>void <a name="clearEdit"></a>QComboBox::clearEdit ()<tt> [slot]</tt>
</h3> Clears the line edit without changing the combobox's contents.
Does nothing if the combobox isn't editable.
<p> This is particularly handy when using a combobox as a line edit
with history. For example you can connect the combobox's <a href="#activated">activated</a>()
signal to <a href="#clearEdit">clearEdit</a>() in order to present the user with a new, empty
line as soon as Return is pressed.
<p> <p>See also <a href="#setEditText">setEditText</a>().
<h3 class=fn>void <a name="clearValidator"></a>QComboBox::clearValidator ()<tt> [slot]</tt>
</h3> This slot is equivalent to <a href="#setValidator">setValidator</a>( 0 ).
<h3 class=fn>int <a name="count"></a>QComboBox::count () const
</h3><p>Returns the number of items in the combobox.
See the <a href="qcombobox.html#count-prop">"count"</a> property for details.
<h3 class=fn>int <a name="currentItem"></a>QComboBox::currentItem () const
</h3><p>Returns the index of the current item in the combobox.
See the <a href="qcombobox.html#currentItem-prop">"currentItem"</a> property for details.
<h3 class=fn><a href="qstring.html">QString</a> <a name="currentText"></a>QComboBox::currentText () const
</h3><p>Returns the text of the combobox's current item.
See the <a href="qcombobox.html#currentText-prop">"currentText"</a> property for details.
<h3 class=fn>bool <a name="duplicatesEnabled"></a>QComboBox::duplicatesEnabled () const
</h3><p>Returns TRUE if duplicates are allowed; otherwise returns FALSE.
See the <a href="qcombobox.html#duplicatesEnabled-prop">"duplicatesEnabled"</a> property for details.
<h3 class=fn>bool <a name="editable"></a>QComboBox::editable () const
</h3><p>Returns TRUE if the combobox is editable; otherwise returns FALSE.
See the <a href="qcombobox.html#editable-prop">"editable"</a> property for details.
<h3 class=fn>void <a name="highlighted"></a>QComboBox::highlighted ( int index )<tt> [signal]</tt>
</h3>
<p> This signal is emitted when a new item has been set to current.
The <em>index</em> is the position of the item in the combobox.
<h3 class=fn>void <a name="highlighted-2"></a>QComboBox::highlighted ( const <a href="qstring.html">QString</a> & string )<tt> [signal]</tt>
</h3> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> This signal is emitted when a new item has been highlighted. <em>string</em> is the highlighted string.
<p> You can also use <a href="#highlighted">highlighted</a>(int) signal.
<h3 class=fn>void <a name="insertItem"></a>QComboBox::insertItem ( const <a href="qstring.html">QString</a> & t, int index = -1 )
</h3>
Inserts a text item with text <em>t</em>, at position <em>index</em>. The item
will be appended if <em>index</em> is negative.
<p>Examples: <a href="fileiconview-example.html#x1592">fileiconview/mainwindow.cpp</a>, <a href="helpviewer-example.html#x1389">helpviewer/helpwindow.cpp</a>, <a href="lineedits-example.html#x1295">lineedits/lineedits.cpp</a>, <a href="listboxcombo-example.html#x1240">listboxcombo/listboxcombo.cpp</a>, <a href="ftpclient-example.html#x1005">network/ftpclient/ftpmainwindow.cpp</a> and <a href="tictac-example.html#x178">tictac/tictac.cpp</a>.
<h3 class=fn>void <a name="insertItem-2"></a>QComboBox::insertItem ( const <a href="qpixmap.html">QPixmap</a> & pixmap, int index = -1 )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Inserts a <em>pixmap</em> item at position <em>index</em>. The item will be
appended if <em>index</em> is negative.
<h3 class=fn>void <a name="insertItem-3"></a>QComboBox::insertItem ( const <a href="qpixmap.html">QPixmap</a> & pixmap, const <a href="qstring.html">QString</a> & text, int index = -1 )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Inserts a <em>pixmap</em> item with additional text <em>text</em> at position <em>index</em>. The item will be appended if <em>index</em> is negative.
<h3 class=fn>void <a name="insertStrList"></a>QComboBox::insertStrList ( const char ** strings, int numStrings = -1, int index = -1 )
</h3>
Inserts the array of char * <em>strings</em> at position <em>index</em> in the
combobox.
<p> The <em>numStrings</em> argument is the number of strings.
If <em>numStrings</em> is -1 (default), the <em>strings</em> array must be
terminated with 0.
<p> Example:
<pre>
static const char* items[] = { "red", "green", "blue", 0 };
combo->insertStrList( items );
</pre>
<p>Example: <a href="qmag-example.html#x693">qmag/qmag.cpp</a>.
<h3 class=fn>void <a name="insertStrList-2"></a>QComboBox::insertStrList ( const <a href="qstrlist.html">QStrList</a> & list, int index = -1 )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Inserts the <em>list</em> of strings at position <em>index</em> in the combobox.
<p> This is only for compatibility, as it does not support Unicode
strings. See <a href="#insertStringList">insertStringList</a>().
<h3 class=fn>void <a name="insertStrList-3"></a>QComboBox::insertStrList ( const <a href="qstrlist.html">QStrList</a> * list, int index = -1 )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Inserts the <em>list</em> of strings at position <em>index</em> in the combobox.
<p> This is only for compatibility, as it does not support Unicode
strings. See <a href="#insertStringList">insertStringList</a>().
<h3 class=fn>void <a name="insertStringList"></a>QComboBox::insertStringList ( const <a href="qstringlist.html">QStringList</a> & list, int index = -1 )
</h3>
Inserts the <em>list</em> of strings at position <em>index</em> in the combobox.
<h3 class=fn><a href="qcombobox.html#Policy-enum">Policy</a> <a name="insertionPolicy"></a>QComboBox::insertionPolicy () const
</h3><p>Returns the position of the items inserted by the user.
See the <a href="qcombobox.html#insertionPolicy-prop">"insertionPolicy"</a> property for details.
<h3 class=fn><a href="qlineedit.html">QLineEdit</a> * <a name="lineEdit"></a>QComboBox::lineEdit () const
</h3>
Returns the line editor, or 0 if there is no line editor.
<p> Only editable listboxes have a line editor.
<h3 class=fn><a href="qlistbox.html">QListBox</a> * <a name="listBox"></a>QComboBox::listBox () const
</h3> Returns the current list box, or 0 if there is no list box.
(QComboBox can use <a href="qpopupmenu.html">QPopupMenu</a> instead of <a href="qlistbox.html">QListBox</a>.)
Provided to match <a href="#setListBox">setListBox</a>().
<p> <p>See also <a href="#setListBox">setListBox</a>().
<p>Example: <a href="listboxcombo-example.html#x1241">listboxcombo/listboxcombo.cpp</a>.
<h3 class=fn>int <a name="maxCount"></a>QComboBox::maxCount () const
</h3><p>Returns the maximum number of items allowed in the combobox.
See the <a href="qcombobox.html#maxCount-prop">"maxCount"</a> property for details.
<h3 class=fn>const <a href="qpixmap.html">QPixmap</a> * <a name="pixmap"></a>QComboBox::pixmap ( int index ) const
</h3>
Returns the pixmap item at position <em>index</em>, or 0 if the item is not
a pixmap.
<h3 class=fn>void <a name="popup"></a>QComboBox::popup ()<tt> [virtual]</tt>
</h3>
Pops up the combobox popup list.
<p> If the list is empty, no items appear.
<h3 class=fn>void <a name="removeItem"></a>QComboBox::removeItem ( int index )
</h3>
Removes the item at position <em>index</em>.
<h3 class=fn>void <a name="setAutoCompletion"></a>QComboBox::setAutoCompletion ( bool )<tt> [virtual]</tt>
</h3><p>Sets whether auto-completion is enabled.
See the <a href="qcombobox.html#autoCompletion-prop">"autoCompletion"</a> property for details.
<h3 class=fn>void <a name="setAutoResize"></a>QComboBox::setAutoResize ( bool )<tt> [virtual]</tt>
</h3><p>Sets whether auto resize is enabled.
See the <a href="qcombobox.html#autoResize-prop">"autoResize"</a> property for details.
<h3 class=fn>void <a name="setCurrentItem"></a>QComboBox::setCurrentItem ( int index )<tt> [virtual]</tt>
</h3><p>Sets the index of the current item in the combobox to <em>index</em>.
See the <a href="qcombobox.html#currentItem-prop">"currentItem"</a> property for details.
<h3 class=fn>void <a name="setCurrentText"></a>QComboBox::setCurrentText ( const <a href="qstring.html">QString</a> & )<tt> [virtual]</tt>
</h3><p>Sets the text of the combobox's current item.
See the <a href="qcombobox.html#currentText-prop">"currentText"</a> property for details.
<h3 class=fn>void <a name="setDuplicatesEnabled"></a>QComboBox::setDuplicatesEnabled ( bool enable )
</h3><p>Sets whether duplicates are allowed to <em>enable</em>.
See the <a href="qcombobox.html#duplicatesEnabled-prop">"duplicatesEnabled"</a> property for details.
<h3 class=fn>void <a name="setEditText"></a>QComboBox::setEditText ( const <a href="qstring.html">QString</a> & newText )<tt> [virtual slot]</tt>
</h3> Sets the text in the line edit to <em>newText</em> without
changing the combobox's contents. Does nothing if the combobox isn't
editable.
<p> This is useful e.g. for providing a good starting point for the
user's editing and entering the change in the combobox only when the
user presses Enter.
<p> <p>See also <a href="#clearEdit">clearEdit</a>() and <a href="#insertItem">insertItem</a>().
<p>Example: <a href="ftpclient-example.html#x1007">network/ftpclient/ftpmainwindow.cpp</a>.
<h3 class=fn>void <a name="setEditable"></a>QComboBox::setEditable ( bool )
</h3><p>Sets whether the combobox is editable.
See the <a href="qcombobox.html#editable-prop">"editable"</a> property for details.
<h3 class=fn>void <a name="setFont"></a>QComboBox::setFont ( const <a href="qfont.html">QFont</a> & font )<tt> [virtual]</tt>
</h3>
Reimplements <a href="qwidget.html#setFont">QWidget::setFont</a>().
<p> Sets the font for both the combobox button and the
combobox popup list to <em>font</em>.
<p>Reimplemented from <a href="qwidget.html#setFont">QWidget</a>.
<h3 class=fn>void <a name="setInsertionPolicy"></a>QComboBox::setInsertionPolicy ( <a href="qcombobox.html#Policy-enum">Policy</a> policy )<tt> [virtual]</tt>
</h3><p>Sets the position of the items inserted by the user to <em>policy</em>.
See the <a href="qcombobox.html#insertionPolicy-prop">"insertionPolicy"</a> property for details.
<h3 class=fn>void <a name="setLineEdit"></a>QComboBox::setLineEdit ( <a href="qlineedit.html">QLineEdit</a> * edit )<tt> [virtual]</tt>
</h3> Sets the lineedit to use <em>edit</em> instead of the current lineedit.
<h3 class=fn>void <a name="setListBox"></a>QComboBox::setListBox ( <a href="qlistbox.html">QListBox</a> * newListBox )<tt> [virtual]</tt>
</h3> Sets the combobox to use <em>newListBox</em> instead of the current
list box or popup. As a side effect, it clears the combobox of its
current contents.
<p> <b>Warning:</b> QComboBox assumes that newListBox->text(n) returns
non-null for 0 <= n < newListbox->count(). This assumption is
necessary because of the line edit in QComboBox.
<h3 class=fn>void <a name="setMaxCount"></a>QComboBox::setMaxCount ( int )<tt> [virtual]</tt>
</h3><p>Sets the maximum number of items allowed in the combobox.
See the <a href="qcombobox.html#maxCount-prop">"maxCount"</a> property for details.
<h3 class=fn>void <a name="setPalette"></a>QComboBox::setPalette ( const <a href="qpalette.html">QPalette</a> & palette )<tt> [virtual]</tt>
</h3>
Reimplements <a href="qwidget.html#setPalette">QWidget::setPalette</a>().
<p> Sets the palette for both the combobox button and the
combobox popup list to <em>palette</em>.
<p>Reimplemented from <a href="qwidget.html#setPalette">QWidget</a>.
<h3 class=fn>void <a name="setSizeLimit"></a>QComboBox::setSizeLimit ( int )<tt> [virtual]</tt>
</h3><p>Sets the maximum on-screen size of the combobox.
See the <a href="qcombobox.html#sizeLimit-prop">"sizeLimit"</a> property for details.
<h3 class=fn>void <a name="setValidator"></a>QComboBox::setValidator ( const <a href="qvalidator.html">QValidator</a> * v )<tt> [virtual]</tt>
</h3>
Applies the validator <em>v</em> to the combobox so that only text which
is valid according to <em>v</em> is accepted.
<p> This function does nothing if the combo is not editable.
<p> <p>See also <a href="#validator">validator</a>(), <a href="#clearValidator">clearValidator</a>() and <a href="qvalidator.html">QValidator</a>.
<h3 class=fn>int <a name="sizeLimit"></a>QComboBox::sizeLimit () const
</h3><p>Returns the maximum on-screen size of the combobox.
See the <a href="qcombobox.html#sizeLimit-prop">"sizeLimit"</a> property for details.
<h3 class=fn><a href="qstring.html">QString</a> <a name="text"></a>QComboBox::text ( int index ) const
</h3>
Returns the text item at position <em>index</em>, or
<a href="qstring.html#operator!">null string</a>
if the item is not a string.
<p>See also <a href="#currentText-prop">currentText</a>.
<p>Examples: <a href="fileiconview-example.html#x1595">fileiconview/mainwindow.cpp</a> and <a href="helpviewer-example.html#x1391">helpviewer/helpwindow.cpp</a>.
<h3 class=fn>void <a name="textChanged"></a>QComboBox::textChanged ( const <a href="qstring.html">QString</a> & string )<tt> [signal]</tt>
</h3>
<p> This signal is used for editable comboboxes. It is emitted whenever
the contents of the text entry field changes. <em>string</em> contains the
new text.
<h3 class=fn>const <a href="qvalidator.html">QValidator</a> * <a name="validator"></a>QComboBox::validator () const
</h3> Returns the validator which constrains editing for this combobox if
there is one, otherwise returns 0.
<p> <p>See also <a href="#setValidator">setValidator</a>(), <a href="#clearValidator">clearValidator</a>() and <a href="qvalidator.html">QValidator</a>.
<hr><h2>Property Documentation</h2>
<h3 class=fn>bool <a name="autoCompletion-prop"></a>autoCompletion</h3> <p>This property holds whether auto-completion is enabled.
<p>This property can only be set for editable comboboxes, for non-editable
comboboxes it has no effect. It is FALSE by default.
<p>Set this property's value with <a href="#setAutoCompletion">setAutoCompletion</a>() and get this property's value with <a href="#autoCompletion">autoCompletion</a>().
<h3 class=fn>bool <a name="autoMask-prop"></a>autoMask</h3> <p>This property holds whether the combobox is automatically masked.
<p><p><p>See also <a href="qwidget.html#autoMask-prop">QWidget::autoMask</a>.
<h3 class=fn>bool <a name="autoResize-prop"></a>autoResize</h3> <p>This property holds whether auto resize is enabled.
<p><b>This property is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
<p> If this property is set to TRUE then the combobox will resize itself
whenever its contents change. The default is FALSE.
<p>Set this property's value with <a href="#setAutoResize">setAutoResize</a>() and get this property's value with <a href="#autoResize">autoResize</a>().
<h3 class=fn>int <a name="count-prop"></a>count</h3> <p>This property holds the number of items in the combobox.
<p>
<p>Get this property's value with <a href="#count">count</a>().
<h3 class=fn>int <a name="currentItem-prop"></a>currentItem</h3> <p>This property holds the index of the current item in the combobox.
<p>
<p>Set this property's value with <a href="#setCurrentItem">setCurrentItem</a>() and get this property's value with <a href="#currentItem">currentItem</a>().
<h3 class=fn><a href="qstring.html">QString</a> <a name="currentText-prop"></a>currentText</h3> <p>This property holds the text of the combobox's current item.
<p>
<p>Set this property's value with <a href="#setCurrentText">setCurrentText</a>() and get this property's value with <a href="#currentText">currentText</a>().
<h3 class=fn>bool <a name="duplicatesEnabled-prop"></a>duplicatesEnabled</h3> <p>This property holds whether duplicates are allowed.
<p>If the combobox is editable and the user enters some text in the
lineedit of the combobox and presses Enter (and the
<a href="#insertionPolicy">insertionPolicy</a>() is different from NoInsertion), then what happens
is as follows:
<ul>
<li> If the text is not already in the list, the text is inserted.
<li> If the text is in the list and this property is TRUE (the
default), the text is inserted.
<li> If the text is in the list and this property is FALSE, the text
is <em>not</em> inserted; instead the item which has matching text becomes
the current item.
</ul>
<p> This property only affects user-interaction. You can use
<a href="#insertItem">insertItem</a>() to insert duplicates if you wish regardless of this
setting.
<p>
<p>Set this property's value with <a href="#setDuplicatesEnabled">setDuplicatesEnabled</a>() and get this property's value with <a href="#duplicatesEnabled">duplicatesEnabled</a>().
<h3 class=fn>bool <a name="editable-prop"></a>editable</h3> <p>This property holds whether the combobox is editable.
<p>This property's default is FALSE. Note that the combobox will be
cleared if this property is set to TRUE for a 1.x Motif style
combobox. To avoid this, use <a href="#setEditable">setEditable</a>() before inserting any
items. Also note that the 1.x version of Motif didn't have any
editable comboboxes, so the combobox will change it's appearance
to a 2.0 style Motif combobox is it is set to be editable.
<p>Set this property's value with <a href="#setEditable">setEditable</a>() and get this property's value with <a href="#editable">editable</a>().
<h3 class=fn><a href="qcombobox.html#Policy-enum">Policy</a> <a name="insertionPolicy-prop"></a>insertionPolicy</h3> <p>This property holds the position of the items inserted by the user.
<p>The default insertion policy is <a href="#Policy-enum">AtBottom</a>.
<p>Set this property's value with <a href="#setInsertionPolicy">setInsertionPolicy</a>() and get this property's value with <a href="#insertionPolicy">insertionPolicy</a>().
<h3 class=fn>int <a name="maxCount-prop"></a>maxCount</h3> <p>This property holds the maximum number of items allowed in the combobox.
<p>
<p>Set this property's value with <a href="#setMaxCount">setMaxCount</a>() and get this property's value with <a href="#maxCount">maxCount</a>().
<h3 class=fn>int <a name="sizeLimit-prop"></a>sizeLimit</h3> <p>This property holds the maximum on-screen size of the combobox.
<p>This is disregarded in Motif 1.x style. The default limit is ten
lines. If the number of items in the combobox is or grows larger than
lines, a scrollbar is added.
<p>Set this property's value with <a href="#setSizeLimit">setSizeLimit</a>() and get this property's value with <a href="#sizeLimit">sizeLimit</a>().
<!-- eof -->
<hr><p>
This file is part of the <a href="index.html">Qt toolkit</a>.
Copyright © 1995-2001
<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
<table width=100% cellspacing=0 border=0><tr>
<td>Copyright © 2001
<a href="http://www.trolltech.com">Trolltech</a><td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a>
<td align=right><div align=right>Qt version 3.0.2</div>
</table></div></address></body>
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