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authorTimothy Pearson <[email protected]>2011-11-08 12:31:36 -0600
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+<title>TQKeyEvent Class</title>
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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>TQKeyEvent Class Reference</h1>
+
+<p>The TQKeyEvent class contains describes a key event.
+<a href="#details">More...</a>
+<p><tt>#include &lt;<a href="qevent-h.html">qevent.h</a>&gt;</tt>
+<p>Inherits <a href="qevent.html">TQEvent</a>.
+<p><a href="qkeyevent-members.html">List of all member functions.</a>
+<h2>Public Members</h2>
+<ul>
+<li class=fn><a href="#TQKeyEvent"><b>TQKeyEvent</b></a> ( Type&nbsp;type, int&nbsp;key, int&nbsp;ascii, int&nbsp;state, const&nbsp;TQString&nbsp;&amp;&nbsp;text = TQString::null, bool&nbsp;autorep = FALSE, ushort&nbsp;count = 1 )</li>
+<li class=fn>int <a href="#key"><b>key</b></a> () const</li>
+<li class=fn>int <a href="#ascii"><b>ascii</b></a> () const</li>
+<li class=fn>ButtonState <a href="#state"><b>state</b></a> () const</li>
+<li class=fn>ButtonState <a href="#stateAfter"><b>stateAfter</b></a> () const</li>
+<li class=fn>bool <a href="#isAccepted"><b>isAccepted</b></a> () const</li>
+<li class=fn>TQString <a href="#text"><b>text</b></a> () const</li>
+<li class=fn>bool <a href="#isAutoRepeat"><b>isAutoRepeat</b></a> () const</li>
+<li class=fn>int <a href="#count"><b>count</b></a> () const</li>
+<li class=fn>void <a href="#accept"><b>accept</b></a> ()</li>
+<li class=fn>void <a href="#ignore"><b>ignore</b></a> ()</li>
+</ul>
+<hr><a name="details"></a><h2>Detailed Description</h2>
+
+
+The TQKeyEvent class contains describes a key event.
+<p>
+<p> Key events occur when a key is pressed or released when a widget
+has keyboard input focus.
+<p> A key event contains a special accept flag that indicates whether the
+receiver wants the key event. You should call <a href="#ignore">TQKeyEvent::ignore</a>() if the
+key press or release event is not handled by your widget. A key event is
+propagated up the parent widget chain until a widget accepts it with
+<a href="#accept">TQKeyEvent::accept</a>() or an event filter consumes it.
+Key events for multi media keys are ignored by default. You should call
+TQKeyEvent::accept() if your widget handles those events.
+<p> The TQWidget::setEnable() function can be used to enable or disable
+mouse and keyboard events for a widget.
+<p> The event handlers <a href="qwidget.html#keyPressEvent">TQWidget::keyPressEvent</a>() and
+<a href="qwidget.html#keyReleaseEvent">TQWidget::keyReleaseEvent</a>() receive key events.
+<p> <p>See also <a href="qfocusevent.html">TQFocusEvent</a>, <a href="qwidget.html#grabKeyboard">TQWidget::grabKeyboard</a>(), and <a href="events.html">Event Classes</a>.
+
+<hr><h2>Member Function Documentation</h2>
+<h3 class=fn><a name="TQKeyEvent"></a>TQKeyEvent::TQKeyEvent ( <a href="qevent.html#Type-enum">Type</a>&nbsp;type, int&nbsp;key, int&nbsp;ascii, int&nbsp;state, const&nbsp;<a href="qstring.html">TQString</a>&nbsp;&amp;&nbsp;text = TQString::null, bool&nbsp;autorep = FALSE, ushort&nbsp;count = 1 )
+</h3>
+
+<p> Constructs a key event object.
+<p> The <em>type</em> parameter must be <a href="qevent.html#Type-enum">TQEvent::KeyPress</a> or <a href="qevent.html#Type-enum">TQEvent::KeyRelease</a>. If <em>key</em> is 0 the event is not a result of a
+known key (e.g. it may be the result of a compose sequence or
+keyboard macro). <em>ascii</em> is the ASCII code of the key that was
+pressed or released. <em>state</em> holds the keyboard modifiers. <em>text</em> is the Unicode text that the key generated. If <em>autorep</em> is
+TRUE, <a href="#isAutoRepeat">isAutoRepeat</a>() will be TRUE. <em>count</em> is the number of
+single keys.
+<p> The accept flag is set to TRUE.
+
+<h3 class=fn>void <a name="accept"></a>TQKeyEvent::accept ()
+</h3>
+
+<p> Sets the accept flag of the key event object.
+<p> Setting the accept parameter indicates that the receiver of the
+event wants the key event. Unwanted key events are sent to the
+parent widget.
+<p> The accept flag is set by default.
+<p> <p>See also <a href="#ignore">ignore</a>().
+
+<h3 class=fn>int <a name="ascii"></a>TQKeyEvent::ascii () const
+</h3>
+
+<p> Returns the ASCII code of the key that was pressed or released. We
+recommend using <a href="#text">text</a>() instead.
+<p> <p>See also <a href="#text">text</a>().
+
+<p>Example: <a href="picture-example.html#x109">picture/picture.cpp</a>.
+<h3 class=fn>int <a name="count"></a>TQKeyEvent::count () const
+</h3>
+
+<p> Returns the number of single keys for this event. If <a href="#text">text</a>() is not
+empty, this is simply the length of the string.
+<p> <p>See also <a href="qwidget.html#setKeyCompression">TQWidget::setKeyCompression</a>().
+
+<h3 class=fn>void <a name="ignore"></a>TQKeyEvent::ignore ()
+</h3>
+
+<p> Clears the accept flag parameter of the key event object.
+<p> Clearing the accept parameter indicates that the event receiver
+does not want the key event. Unwanted key events are sent to the
+parent widget.
+<p> The accept flag is set by default.
+<p> <p>See also <a href="#accept">accept</a>().
+
+<h3 class=fn>bool <a name="isAccepted"></a>TQKeyEvent::isAccepted () const
+</h3>
+
+<p> Returns TRUE if the receiver of the event wants to keep the key;
+otherwise returns FALSE
+
+<h3 class=fn>bool <a name="isAutoRepeat"></a>TQKeyEvent::isAutoRepeat () const
+</h3>
+
+<p> Returns TRUE if this event comes from an auto-repeating key and
+FALSE if it comes from an initial key press.
+<p> Note that if the event is a multiple-key compressed event that is
+partly due to auto-repeat, this function could return either TRUE
+or FALSE indeterminately.
+
+<h3 class=fn>int <a name="key"></a>TQKeyEvent::key () const
+</h3>
+
+<p> Returns the code of the key that was pressed or released.
+<p> See <a href="qt.html#Key-enum">TQt::Key</a> for the list of keyboard codes. These codes are
+independent of the underlying window system.
+<p> A value of either 0 or Key_unknown means that the event is not
+the result of a known key (e.g. it may be the result of a compose
+sequence or a keyboard macro, or due to key event compression).
+<p> <p>See also <a href="qwidget.html#setKeyCompression">TQWidget::setKeyCompression</a>().
+
+<p>Example: <a href="fileiconview-example.html#x853">fileiconview/qfileiconview.cpp</a>.
+<h3 class=fn><a href="qt.html#ButtonState-enum">ButtonState</a> <a name="state"></a>TQKeyEvent::state () const
+</h3>
+
+<p> Returns the keyboard modifier flags that existed immediately
+before the event occurred.
+<p> The returned value is <a href="qt.html#ButtonState-enum">ShiftButton</a>, <a href="qt.html#ButtonState-enum">ControlButton</a>, <a href="qt.html#ButtonState-enum">AltButton</a>
+and <a href="qt.html#ButtonState-enum">MetaButton</a> OR'ed together.
+<p> <p>See also <a href="#stateAfter">stateAfter</a>().
+
+<p>Example: <a href="fileiconview-example.html#x854">fileiconview/qfileiconview.cpp</a>.
+<h3 class=fn><a href="qt.html#ButtonState-enum">ButtonState</a> <a name="stateAfter"></a>TQKeyEvent::stateAfter () const
+</h3>
+
+<p> Returns the keyboard modifier flags that existed immediately after
+the event occurred.
+<p> <b>Warning:</b> This function cannot be trusted.
+<p> <p>See also <a href="#state">state</a>().
+
+<h3 class=fn><a href="qstring.html">TQString</a> <a name="text"></a>TQKeyEvent::text () const
+</h3>
+
+<p> Returns the Unicode text that this key generated. The text returned
+migth be empty, which is the case when pressing or
+releasing modifying keys as Shift, Control, Alt and Meta. In these
+cases <a href="#key">key</a>() will contain a valid value.
+<p> <p>See also <a href="qwidget.html#setKeyCompression">TQWidget::setKeyCompression</a>().
+
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