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134 lines
6.0 KiB
134 lines
6.0 KiB
13 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/kernel/qevent.cpp:1147 -->
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>TQFocusEvent 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>TQFocusEvent Class Reference</h1>
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<p>The TQFocusEvent class contains event parameters for widget focus
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events.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qevent-h.html">qevent.h</a>></tt>
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<p>Inherits <a href="qevent.html">TQEvent</a>.
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<p><a href="qfocusevent-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn><a href="#TQFocusEvent"><b>TQFocusEvent</b></a> ( Type type )</li>
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<li class=fn>bool <a href="#gotFocus"><b>gotFocus</b></a> () const</li>
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<li class=fn>bool <a href="#lostFocus"><b>lostFocus</b></a> () const</li>
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<li class=fn>enum <a href="#Reason-enum"><b>Reason</b></a> { Mouse, Tab, Backtab, ActiveWindow, Popup, Shortcut, Other }</li>
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</ul>
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<h2>Static Public Members</h2>
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<ul>
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<li class=fn>Reason <a href="#reason"><b>reason</b></a> ()</li>
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<li class=fn>void <a href="#setReason"><b>setReason</b></a> ( Reason reason )</li>
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<li class=fn>void <a href="#resetReason"><b>resetReason</b></a> ()</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The TQFocusEvent class contains event parameters for widget focus
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events.
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<p>
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<p> Focus events are sent to widgets when the keyboard input focus
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changes. Focus events occur due to mouse actions, keypresses (e.g.
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Tab or Backtab), the window system, popup menus, keyboard
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shortcuts or other application specific reasons. The reason for a
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particular focus event is returned by <a href="#reason">reason</a>() in the appropriate
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event handler.
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<p> The event handlers <a href="qwidget.html#focusInEvent">TQWidget::focusInEvent</a>() and
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<a href="qwidget.html#focusOutEvent">TQWidget::focusOutEvent</a>() receive focus events.
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<p> Use <a href="#setReason">setReason</a>() to set the reason for all focus events, and
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<a href="#resetReason">resetReason</a>() to set the reason for all focus events to the reason
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in force before the last setReason() call.
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<p> <p>See also <a href="qwidget.html#setFocus">TQWidget::setFocus</a>(), <a href="qwidget.html#focusPolicy-prop">TQWidget::focusPolicy</a>, and <a href="events.html">Event Classes</a>.
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<hr><h2>Member Type Documentation</h2>
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<h3 class=fn><a name="Reason-enum"></a>TQFocusEvent::Reason</h3>
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<p> This enum specifies why the focus changed.
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<ul>
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<li><tt>TQFocusEvent::Mouse</tt> - because of a mouse action.
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<li><tt>TQFocusEvent::Tab</tt> - because of a Tab press.
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<li><tt>TQFocusEvent::Backtab</tt> - because of a Backtab press
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(possibly including Shift/Control, e.g. Shift+Tab).
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<li><tt>TQFocusEvent::ActiveWindow</tt> - because the window system made this window (in)active.
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<li><tt>TQFocusEvent::Popup</tt> - because the application opened/closed a popup that grabbed/released focus.
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<li><tt>TQFocusEvent::Shortcut</tt> - because of a keyboard shortcut.
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<li><tt>TQFocusEvent::Other</tt> - any other reason, usually application-specific.
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</ul><p> See the <a href="focus.html">keyboard focus overview</a> for more
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about focus.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQFocusEvent"></a>TQFocusEvent::TQFocusEvent ( <a href="qevent.html#Type-enum">Type</a> type )
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</h3>
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<p> Constructs a focus event object.
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<p> The <em>type</em> parameter must be either <a href="qevent.html#Type-enum">TQEvent::FocusIn</a> or <a href="qevent.html#Type-enum">TQEvent::FocusOut</a>.
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<h3 class=fn>bool <a name="gotFocus"></a>TQFocusEvent::gotFocus () const
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</h3>
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<p> Returns TRUE if the widget received the text input focus;
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otherwise returns FALSE.
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<h3 class=fn>bool <a name="lostFocus"></a>TQFocusEvent::lostFocus () const
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</h3>
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<p> Returns TRUE if the widget lost the text input focus; otherwise
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returns FALSE.
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<h3 class=fn><a href="qfocusevent.html#Reason-enum">Reason</a> <a name="reason"></a>TQFocusEvent::reason ()<tt> [static]</tt>
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</h3>
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Returns the reason for this focus event.
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<p> <p>See also <a href="#setReason">setReason</a>().
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<h3 class=fn>void <a name="resetReason"></a>TQFocusEvent::resetReason ()<tt> [static]</tt>
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</h3>
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Resets the reason for all future focus events to the value before
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the last <a href="#setReason">setReason</a>() call.
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<p> <p>See also <a href="#reason">reason</a>() and <a href="#setReason">setReason</a>().
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<h3 class=fn>void <a name="setReason"></a>TQFocusEvent::setReason ( <a href="qfocusevent.html#Reason-enum">Reason</a> reason )<tt> [static]</tt>
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</h3>
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Sets the reason for all future focus events to <em>reason</em>.
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<p> <p>See also <a href="#reason">reason</a>() and <a href="#resetReason">resetReason</a>().
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<!-- eof -->
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<hr><p>
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This file is part of the <a href="index.html">TQt toolkit</a>.
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Copyright © 1995-2007
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<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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</table></div></address></body>
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</html>
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