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diff --git a/doc/html/qscrollbar.html b/doc/html/qscrollbar.html new file mode 100644 index 0000000..cde2597 --- /dev/null +++ b/doc/html/qscrollbar.html @@ -0,0 +1,382 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> +<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/widgets/qscrollbar.cpp:53 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>QScrollBar Class</title> +<style type="text/css"><!-- +fn { margin-left: 1cm; text-indent: -1cm; } +a:link { color: #004faf; text-decoration: none } +a:visited { color: #672967; text-decoration: none } +body { background: #ffffff; color: black; } +--></style> +</head> +<body> + +<table border="0" cellpadding="0" cellspacing="0" width="100%"> +<tr bgcolor="#E5E5E5"> +<td valign=center> + <a href="index.html"> +<font color="#004faf">Home</font></a> + | <a href="classes.html"> +<font color="#004faf">All Classes</font></a> + | <a href="mainclasses.html"> +<font color="#004faf">Main Classes</font></a> + | <a href="annotated.html"> +<font color="#004faf">Annotated</font></a> + | <a href="groups.html"> +<font color="#004faf">Grouped Classes</font></a> + | <a href="functions.html"> +<font color="#004faf">Functions</font></a> +</td> +<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QScrollBar Class Reference</h1> + +<p>The QScrollBar widget provides a vertical or horizontal scroll bar. +<a href="#details">More...</a> +<p><tt>#include <<a href="qscrollbar-h.html">qscrollbar.h</a>></tt> +<p>Inherits <a href="qwidget.html">QWidget</a> and <a href="qrangecontrol.html">QRangeControl</a>. +<p><a href="qscrollbar-members.html">List of all member functions.</a> +<h2>Public Members</h2> +<ul> +<li class=fn><a href="#QScrollBar"><b>QScrollBar</b></a> ( QWidget * parent, const char * name = 0 )</li> +<li class=fn><a href="#QScrollBar-2"><b>QScrollBar</b></a> ( Orientation orientation, QWidget * parent, const char * name = 0 )</li> +<li class=fn><a href="#QScrollBar-3"><b>QScrollBar</b></a> ( int minValue, int maxValue, int lineStep, int pageStep, int value, Orientation orientation, QWidget * parent, const char * name = 0 )</li> +<li class=fn><a href="#~QScrollBar"><b>~QScrollBar</b></a> ()</li> +<li class=fn>virtual void <a href="#setOrientation"><b>setOrientation</b></a> ( Orientation )</li> +<li class=fn>Orientation <a href="#orientation"><b>orientation</b></a> () const</li> +<li class=fn>virtual void <a href="#setTracking"><b>setTracking</b></a> ( bool enable )</li> +<li class=fn>bool <a href="#tracking"><b>tracking</b></a> () const</li> +<li class=fn>bool <a href="#draggingSlider"><b>draggingSlider</b></a> () const</li> +<li class=fn>virtual void <a href="#setPalette"><b>setPalette</b></a> ( const QPalette & p )</li> +<li class=fn>int <a href="#minValue"><b>minValue</b></a> () const</li> +<li class=fn>int <a href="#maxValue"><b>maxValue</b></a> () const</li> +<li class=fn>void <a href="#setMinValue"><b>setMinValue</b></a> ( int )</li> +<li class=fn>void <a href="#setMaxValue"><b>setMaxValue</b></a> ( int )</li> +<li class=fn>int <a href="#lineStep"><b>lineStep</b></a> () const</li> +<li class=fn>int <a href="#pageStep"><b>pageStep</b></a> () const</li> +<li class=fn>void <a href="#setLineStep"><b>setLineStep</b></a> ( int )</li> +<li class=fn>void <a href="#setPageStep"><b>setPageStep</b></a> ( int )</li> +<li class=fn>int <a href="#value"><b>value</b></a> () const</li> +<li class=fn>int <a href="#sliderStart"><b>sliderStart</b></a> () const</li> +<li class=fn>QRect <a href="#sliderRect"><b>sliderRect</b></a> () const</li> +</ul> +<h2>Public Slots</h2> +<ul> +<li class=fn>void <a href="#setValue"><b>setValue</b></a> ( int )</li> +</ul> +<h2>Signals</h2> +<ul> +<li class=fn>void <a href="#valueChanged"><b>valueChanged</b></a> ( int value )</li> +<li class=fn>void <a href="#sliderPressed"><b>sliderPressed</b></a> ()</li> +<li class=fn>void <a href="#sliderMoved"><b>sliderMoved</b></a> ( int value )</li> +<li class=fn>void <a href="#sliderReleased"><b>sliderReleased</b></a> ()</li> +<li class=fn>void <a href="#nextLine"><b>nextLine</b></a> ()</li> +<li class=fn>void <a href="#prevLine"><b>prevLine</b></a> ()</li> +<li class=fn>void <a href="#nextPage"><b>nextPage</b></a> ()</li> +<li class=fn>void <a href="#prevPage"><b>prevPage</b></a> ()</li> +</ul> +<h2>Properties</h2> +<ul> +<li class=fn>bool <a href="#draggingSlider-prop"><b>draggingSlider</b></a> - whether the user has clicked the mouse on the slider and is currently dragging it <em>(read only)</em></li> +<li class=fn>int <a href="#lineStep-prop"><b>lineStep</b></a> - the line step</li> +<li class=fn>int <a href="#maxValue-prop"><b>maxValue</b></a> - the scroll bar's maximum value</li> +<li class=fn>int <a href="#minValue-prop"><b>minValue</b></a> - the scroll bar's minimum value</li> +<li class=fn>Orientation <a href="#orientation-prop"><b>orientation</b></a> - the orientation of the scroll bar</li> +<li class=fn>int <a href="#pageStep-prop"><b>pageStep</b></a> - the page step</li> +<li class=fn>bool <a href="#tracking-prop"><b>tracking</b></a> - whether scroll bar tracking is enabled</li> +<li class=fn>int <a href="#value-prop"><b>value</b></a> - the scroll bar's value</li> +</ul> +<h2>Protected Members</h2> +<ul> +<li class=fn>virtual void <a href="#hideEvent"><b>hideEvent</b></a> ( QHideEvent * )</li> +</ul> +<hr><a name="details"></a><h2>Detailed Description</h2> + + +The QScrollBar widget provides a vertical or horizontal scroll bar. +<p> +<p> A scroll bar allows the user to control a value within a +program-definable range and gives users a visible indication of +the current value of a <a href="qrangecontrol.html">range control</a>. +<p> Scroll bars include four separate controls: +<p> <ul> +<p> <li> The <em>line-up</em> and <em>line-down</em> controls are little buttons +which the user can use to move one "line" up or down. The meaning +of line is configurable. In editors and list boxes it means one +line of text; in an image viewer it might mean 20 pixels. +<p> <li> The <em>slider</em> is the handle that indicates the current value of +the scroll bar, which the user can drag to change the value. This +part of the scroll bar is sometimes called the "thumb". +<p> <li> The <em>page-up/page-down</em> control is the area on which the +slider slides (the scroll bar's background). Clicking here moves +the scroll bar towards the click. The meaning of "page" is also +configurable: in editors and list boxes it means as many lines as +there is space for in the widget. +<p> </ul> +<p> QScrollBar has very few of its own functions; it mostly relies on +<a href="qrangecontrol.html">QRangeControl</a>. The most useful functions are <a href="#setValue">setValue</a>() to set the +scroll bar directly to some value; <a href="qrangecontrol.html#addPage">addPage</a>(), <a href="qrangecontrol.html#addLine">addLine</a>(), +<a href="qrangecontrol.html#subtractPage">subtractPage</a>(), and <a href="qrangecontrol.html#subtractLine">subtractLine</a>() to simulate the effects of +clicking (useful for accelerator keys); <a href="qrangecontrol.html#setSteps">setSteps</a>() to define the +values of <a href="#pageStep">pageStep</a>() and <a href="#lineStep">lineStep</a>(); and <a href="qrangecontrol.html#setRange">setRange</a>() to set the +<a href="#minValue">minValue</a>() and <a href="#maxValue">maxValue</a>() of the scroll bar. QScrollBar has a +convenience constructor with which you can set most of these +properties. +<p> Some GUI styles (for example, the Windows and <a href="motif-extension.html#Motif">Motif</a> styles +provided with Qt), also use the pageStep() value to calculate the +size of the slider. +<p> In addition to the access functions from <a href="qrangecontrol.html">QRangeControl</a>, QScrollBar +provides a comprehensive set of signals: +<center><table cellpadding="4" cellspacing="2" border="0"> +<tr bgcolor="#a2c511"> <th valign="top">Signal <th valign="top">Emitted when +<tr bgcolor="#f0f0f0"> <td valign="top"><a href="#valueChanged">valueChanged</a>() +<td valign="top">the scroll bar's value has changed. The <a href="#tracking">tracking</a>() +determines whether this signal is emitted during user +interaction. +<tr bgcolor="#d0d0d0"> <td valign="top"><a href="#sliderPressed">sliderPressed</a>() +<td valign="top">the user starts to drag the slider. +<tr bgcolor="#f0f0f0"> <td valign="top"><a href="#sliderMoved">sliderMoved</a>() +<td valign="top">the user drags the slider. +<tr bgcolor="#d0d0d0"> <td valign="top"><a href="#sliderReleased">sliderReleased</a>() +<td valign="top">the user releases the slider. +<tr bgcolor="#f0f0f0"> <td valign="top"><a href="#nextLine">nextLine</a>() +<td valign="top">the scroll bar has moved one line down or right. Line is +defined in <a href="qrangecontrol.html">QRangeControl</a>. +<tr bgcolor="#d0d0d0"> <td valign="top"><a href="#prevLine">prevLine</a>() +<td valign="top">the scroll bar has moved one line up or left. +<tr bgcolor="#f0f0f0"> <td valign="top"><a href="#nextPage">nextPage</a>() +<td valign="top">the scroll bar has moved one page down or right. +<tr bgcolor="#d0d0d0"> <td valign="top"><a href="#prevPage">prevPage</a>() +<td valign="top">the scroll bar has moved one page up or left. +</table></center> +<p> QScrollBar only provides integer ranges. Note that although +QScrollBar handles very large numbers, scroll bars on current +screens cannot usefully control ranges above about 100,000 pixels. +Beyond that, it becomes difficult for the user to control the +scroll bar using either the keyboard or the mouse. +<p> A scroll bar can be controlled by the keyboard, but it has a +default <a href="qwidget.html#focusPolicy">focusPolicy</a>() of <a href="qwidget.html#FocusPolicy-enum">NoFocus</a>. Use <a href="qwidget.html#setFocusPolicy">setFocusPolicy</a>() to +enable <a href="focus.html#keyboard-focus">keyboard focus</a>. See <a href="qwidget.html#keyPressEvent">keyPressEvent</a>() for a list of key +bindings. +<p> If you need to add scroll bars to an interface, consider using the +<a href="qscrollview.html">QScrollView</a> class, which encapsulates the common uses for scroll +bars. +<p> <img src=qscrbar-m.png> <img src=qscrbar-w.png> +<p> <p>See also <a href="qslider.html">QSlider</a>, <a href="qspinbox.html">QSpinBox</a>, <a href="qscrollview.html">QScrollView</a>, <a href="guibooks.html#fowler">GUI Design Handbook: Scroll Bar</a>, and <a href="basic.html">Basic Widgets</a>. + +<hr><h2>Member Function Documentation</h2> +<h3 class=fn><a name="QScrollBar"></a>QScrollBar::QScrollBar ( <a href="qwidget.html">QWidget</a> * parent, const char * name = 0 ) +</h3> +Constructs a vertical scroll bar. +<p> The <em>parent</em> and <em>name</em> arguments are sent on to the <a href="qwidget.html">QWidget</a> +constructor. +<p> The <a href="#minValue-prop">minValue</a> defaults to 0, the <a href="#maxValue-prop">maxValue</a> to 99, with a <a href="#lineStep-prop">lineStep</a> size of 1 and a <a href="#pageStep-prop">pageStep</a> size of 10, and an initial +<a href="#value-prop">value</a> of 0. + +<h3 class=fn><a name="QScrollBar-2"></a>QScrollBar::QScrollBar ( <a href="qt.html#Orientation-enum">Orientation</a> orientation, <a href="qwidget.html">QWidget</a> * parent, const char * name = 0 ) +</h3> +Constructs a scroll bar. +<p> The <em>orientation</em> must be <a href="qt.html#Orientation-enum">Qt::Vertical</a> or <a href="qt.html#Orientation-enum">Qt::Horizontal</a>. +<p> The <em>parent</em> and <em>name</em> arguments are sent on to the <a href="qwidget.html">QWidget</a> +constructor. +<p> The <a href="#minValue-prop">minValue</a> defaults to 0, the <a href="#maxValue-prop">maxValue</a> to 99, with a <a href="#lineStep-prop">lineStep</a> size of 1 and a <a href="#pageStep-prop">pageStep</a> size of 10, and an initial +<a href="#value-prop">value</a> of 0. + +<h3 class=fn><a name="QScrollBar-3"></a>QScrollBar::QScrollBar ( int minValue, int maxValue, int lineStep, int pageStep, int value, <a href="qt.html#Orientation-enum">Orientation</a> orientation, <a href="qwidget.html">QWidget</a> * parent, const char * name = 0 ) +</h3> +Constructs a scroll bar whose value can never be smaller than <em>minValue</em> or greater than <em>maxValue</em>, whose line step size is <em>lineStep</em> and page step size is <em>pageStep</em> and whose value is +initially <em>value</em> (which is guaranteed to be in range using +<a href="qrangecontrol.html#bound">bound</a>()). +<p> If <em>orientation</em> is <a href="qt.html#Orientation-enum">Vertical</a> the scroll bar is vertical and if +it is <a href="qt.html#Orientation-enum">Horizontal</a> the scroll bar is horizontal. +<p> The <em>parent</em> and <em>name</em> arguments are sent on to the <a href="qwidget.html">QWidget</a> +constructor. + +<h3 class=fn><a name="~QScrollBar"></a>QScrollBar::~QScrollBar () +</h3> +Destructor. + +<h3 class=fn>bool <a name="draggingSlider"></a>QScrollBar::draggingSlider () const +</h3><p>Returns TRUE if the user has clicked the mouse on the slider and is currently dragging it; otherwise returns FALSE. +See the <a href="qscrollbar.html#draggingSlider-prop">"draggingSlider"</a> property for details. +<h3 class=fn>void <a name="hideEvent"></a>QScrollBar::hideEvent ( <a href="qhideevent.html">QHideEvent</a> * )<tt> [virtual protected]</tt> +</h3> +This function is called when the scrollbar is hidden. + +<p>Reimplemented from <a href="qwidget.html#hideEvent">QWidget</a>. +<h3 class=fn>int <a name="lineStep"></a>QScrollBar::lineStep () const +</h3><p>Returns the line step. +See the <a href="qscrollbar.html#lineStep-prop">"lineStep"</a> property for details. +<h3 class=fn>int <a name="maxValue"></a>QScrollBar::maxValue () const +</h3><p>Returns the scroll bar's maximum value. +See the <a href="qscrollbar.html#maxValue-prop">"maxValue"</a> property for details. +<h3 class=fn>int <a name="minValue"></a>QScrollBar::minValue () const +</h3><p>Returns the scroll bar's minimum value. +See the <a href="qscrollbar.html#minValue-prop">"minValue"</a> property for details. +<h3 class=fn>void <a name="nextLine"></a>QScrollBar::nextLine ()<tt> [signal]</tt> +</h3> + +<p> This signal is emitted when the scroll bar scrolls one line down +or right. + +<h3 class=fn>void <a name="nextPage"></a>QScrollBar::nextPage ()<tt> [signal]</tt> +</h3> + +<p> This signal is emitted when the scroll bar scrolls one page down +or right. + +<h3 class=fn><a href="qt.html#Orientation-enum">Orientation</a> <a name="orientation"></a>QScrollBar::orientation () const +</h3><p>Returns the orientation of the scroll bar. +See the <a href="qscrollbar.html#orientation-prop">"orientation"</a> property for details. +<h3 class=fn>int <a name="pageStep"></a>QScrollBar::pageStep () const +</h3><p>Returns the page step. +See the <a href="qscrollbar.html#pageStep-prop">"pageStep"</a> property for details. +<h3 class=fn>void <a name="prevLine"></a>QScrollBar::prevLine ()<tt> [signal]</tt> +</h3> + +<p> This signal is emitted when the scroll bar scrolls one line up or +left. + +<h3 class=fn>void <a name="prevPage"></a>QScrollBar::prevPage ()<tt> [signal]</tt> +</h3> + +<p> This signal is emitted when the scroll bar scrolls one page up or +left. + +<h3 class=fn>void <a name="setLineStep"></a>QScrollBar::setLineStep ( int ) +</h3><p>Sets the line step. +See the <a href="qscrollbar.html#lineStep-prop">"lineStep"</a> property for details. +<h3 class=fn>void <a name="setMaxValue"></a>QScrollBar::setMaxValue ( int ) +</h3><p>Sets the scroll bar's maximum value. +See the <a href="qscrollbar.html#maxValue-prop">"maxValue"</a> property for details. +<h3 class=fn>void <a name="setMinValue"></a>QScrollBar::setMinValue ( int ) +</h3><p>Sets the scroll bar's minimum value. +See the <a href="qscrollbar.html#minValue-prop">"minValue"</a> property for details. +<h3 class=fn>void <a name="setOrientation"></a>QScrollBar::setOrientation ( <a href="qt.html#Orientation-enum">Orientation</a> )<tt> [virtual]</tt> +</h3><p>Sets the orientation of the scroll bar. +See the <a href="qscrollbar.html#orientation-prop">"orientation"</a> property for details. +<h3 class=fn>void <a name="setPageStep"></a>QScrollBar::setPageStep ( int ) +</h3><p>Sets the page step. +See the <a href="qscrollbar.html#pageStep-prop">"pageStep"</a> property for details. +<h3 class=fn>void <a name="setPalette"></a>QScrollBar::setPalette ( const <a href="qpalette.html">QPalette</a> & p )<tt> [virtual]</tt> +</h3> +Reimplements the virtual function <a href="qwidget.html#setPalette">QWidget::setPalette</a>(). +<p> Sets the background color to the mid color for <a href="motif-extension.html#Motif">Motif</a> style scroll +bars using palette <em>p</em>. + +<p>Reimplemented from <a href="qwidget.html#setPalette">QWidget</a>. +<h3 class=fn>void <a name="setTracking"></a>QScrollBar::setTracking ( bool enable )<tt> [virtual]</tt> +</h3><p>Sets whether scroll bar tracking is enabled to <em>enable</em>. +See the <a href="qscrollbar.html#tracking-prop">"tracking"</a> property for details. +<h3 class=fn>void <a name="setValue"></a>QScrollBar::setValue ( int )<tt> [slot]</tt> +</h3><p>Sets the scroll bar's value. +See the <a href="qscrollbar.html#value-prop">"value"</a> property for details. +<h3 class=fn>void <a name="sliderMoved"></a>QScrollBar::sliderMoved ( int value )<tt> [signal]</tt> +</h3> + +<p> This signal is emitted when the slider is dragged by the user, with +the new scroll bar <em>value</em> as an argument. +<p> This signal is emitted even when tracking is turned off. +<p> <p>See also <a href="#tracking-prop">tracking</a>, <a href="#valueChanged">valueChanged</a>(), <a href="#nextLine">nextLine</a>(), <a href="#prevLine">prevLine</a>(), <a href="#nextPage">nextPage</a>(), and <a href="#prevPage">prevPage</a>(). + +<h3 class=fn>void <a name="sliderPressed"></a>QScrollBar::sliderPressed ()<tt> [signal]</tt> +</h3> + +<p> This signal is emitted when the user presses the slider with the +mouse. + +<h3 class=fn><a href="qrect.html">QRect</a> <a name="sliderRect"></a>QScrollBar::sliderRect () const +</h3> +Returns the scroll bar slider rectangle. +<p> <p>See also <a href="#sliderStart">sliderStart</a>(). + +<h3 class=fn>void <a name="sliderReleased"></a>QScrollBar::sliderReleased ()<tt> [signal]</tt> +</h3> + +<p> This signal is emitted when the user releases the slider with the +mouse. + +<h3 class=fn>int <a name="sliderStart"></a>QScrollBar::sliderStart () const +</h3> + +<p> Returns the pixel position where the scroll bar slider starts. +<p> This is equivalent to <a href="#sliderRect">sliderRect</a>().<a href="qwidget.html#y">y</a>() for vertical scroll bars or +sliderRect().<a href="qwidget.html#x">x</a>() for horizontal scroll bars. + +<h3 class=fn>bool <a name="tracking"></a>QScrollBar::tracking () const +</h3><p>Returns TRUE if scroll bar tracking is enabled; otherwise returns FALSE. +See the <a href="qscrollbar.html#tracking-prop">"tracking"</a> property for details. +<h3 class=fn>int <a name="value"></a>QScrollBar::value () const +</h3><p>Returns the scroll bar's value. +See the <a href="qscrollbar.html#value-prop">"value"</a> property for details. +<h3 class=fn>void <a name="valueChanged"></a>QScrollBar::valueChanged ( int value )<tt> [signal]</tt> +</h3> + +<p> This signal is emitted when the scroll bar value has changed, with +the new scroll bar <em>value</em> as an argument. + +<hr><h2>Property Documentation</h2> +<h3 class=fn>bool <a name="draggingSlider-prop"></a>draggingSlider</h3> +<p>This property holds whether the user has clicked the mouse on the slider and is currently dragging it. +<p> +<p>Get this property's value with <a href="#draggingSlider">draggingSlider</a>(). +<h3 class=fn>int <a name="lineStep-prop"></a>lineStep</h3> +<p>This property holds the line step. +<p>When setting lineStep, the virtual <a href="qrangecontrol.html#stepChange">stepChange</a>() function will be +called if the new line step is different from the previous +setting. +<p> <p>See also <a href="qrangecontrol.html#setSteps">setSteps</a>(), <a href="qrangecontrol.html#pageStep">QRangeControl::pageStep</a>(), and <a href="qrangecontrol.html#setRange">setRange</a>(). + +<p>Set this property's value with <a href="#setLineStep">setLineStep</a>() and get this property's value with <a href="#lineStep">lineStep</a>(). +<h3 class=fn>int <a name="maxValue-prop"></a>maxValue</h3> +<p>This property holds the scroll bar's maximum value. +<p>When setting this property, the <a href="#minValue-prop">QScrollBar::minValue</a> is +adjusted if necessary to ensure that the range remains valid. +<p> <p>See also <a href="qrangecontrol.html#setRange">setRange</a>(). + +<p>Set this property's value with <a href="#setMaxValue">setMaxValue</a>() and get this property's value with <a href="#maxValue">maxValue</a>(). +<h3 class=fn>int <a name="minValue-prop"></a>minValue</h3> +<p>This property holds the scroll bar's minimum value. +<p>When setting this property, the <a href="#maxValue-prop">QScrollBar::maxValue</a> is +adjusted if necessary to ensure that the range remains valid. +<p> <p>See also <a href="qrangecontrol.html#setRange">setRange</a>(). + +<p>Set this property's value with <a href="#setMinValue">setMinValue</a>() and get this property's value with <a href="#minValue">minValue</a>(). +<h3 class=fn><a href="qt.html#Orientation-enum">Orientation</a> <a name="orientation-prop"></a>orientation</h3> +<p>This property holds the orientation of the scroll bar. +<p>The orientation must be <a href="qt.html#Orientation-enum">Qt::Vertical</a> (the default) or <a href="qt.html#Orientation-enum">Qt::Horizontal</a>. + +<p>Set this property's value with <a href="#setOrientation">setOrientation</a>() and get this property's value with <a href="#orientation">orientation</a>(). +<h3 class=fn>int <a name="pageStep-prop"></a>pageStep</h3> +<p>This property holds the page step. +<p>When setting pageStep, the virtual <a href="qrangecontrol.html#stepChange">stepChange</a>() function will be +called if the new page step is different from the previous +setting. +<p> <p>See also <a href="qrangecontrol.html#setSteps">QRangeControl::setSteps</a>(), <a href="#lineStep-prop">lineStep</a>, and <a href="qrangecontrol.html#setRange">setRange</a>(). + +<p>Set this property's value with <a href="#setPageStep">setPageStep</a>() and get this property's value with <a href="#pageStep">pageStep</a>(). +<h3 class=fn>bool <a name="tracking-prop"></a>tracking</h3> +<p>This property holds whether scroll bar tracking is enabled. +<p>If tracking is enabled (the default), the scroll bar emits the +<a href="#valueChanged">valueChanged</a>() signal while the slider is being dragged. If +tracking is disabled, the scroll bar emits the valueChanged() +signal only when the user releases the mouse button after moving +the slider. + +<p>Set this property's value with <a href="#setTracking">setTracking</a>() and get this property's value with <a href="#tracking">tracking</a>(). +<h3 class=fn>int <a name="value-prop"></a>value</h3> +<p>This property holds the scroll bar's value. +<p>Set this property's value with <a href="#setValue">setValue</a>() and get this property's value with <a href="#value">value</a>(). +<p><p>See also <a href="qrangecontrol.html#value">QRangeControl::value</a>() and <a href="qrangecontrol.html#prevValue">prevValue</a>(). + +<!-- eof --> +<hr><p> +This file is part of the <a href="index.html">Qt toolkit</a>. +Copyright © 1995-2007 +<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 © 2007 +<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> +<td align=right><div align=right>Qt 3.3.8</div> +</table></div></address></body> +</html> |