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<h1>Gtk::ProgressBar Class Reference<br>
<small>
[<a class="el" href="group__Widgets.html">Widgets</a>]</small>
</h1>A widget which indicates progress visually.
<a href="#_details">More...</a>
<p>
Inheritance diagram for Gtk::ProgressBar:<p><center><img src="classGtk_1_1ProgressBar__inherit__graph.png" border="0" usemap="#Gtk_1_1ProgressBar__inherit__map" alt="Inheritance graph"></center>
<map name="Gtk_1_1ProgressBar__inherit__map">
<area href="classGtk_1_1Widget.html" shape="rect" coords="24,225,101,244" alt="">
<area href="classGtk_1_1Object.html" shape="rect" coords="24,156,101,175" alt="">
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<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="classGtk_1_1ProgressBar-members.html">List of all members.</a><table border=0 cellpadding=0 cellspacing=0>
<tr><td></td></tr>
<tr><td colspan=2><br><h2>Public Methods</h2></td></tr>
<tr><td nowrap align=right valign=top>virtual </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a0">~ProgressBar</a> ()</td></tr>
<tr><td nowrap align=right valign=top>GtkProgressBar* </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a1">gobj</a> ()</td></tr>
<tr><td nowrap align=right valign=top>const GtkProgressBar* </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a2">gobj</a> () const</td></tr>
<tr><td nowrap align=right valign=top> </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a3">ProgressBar</a> ()</td></tr>
<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a4">pulse</a> ()</td></tr>
<tr><td> </td><td><font size=-1><em>Indicates that some progress is made, but you don't know how much.</em> <a href="#a4"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classGlib_1_1ustring.html">Glib::ustring</a> </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a5">get_text</a> () const</td></tr>
<tr><td> </td><td><font size=-1><em>Retrieves the text displayed superimposed on the progress bar, if any, otherwise <code>0</code>.</em> <a href="#a5"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a6">set_text</a> (const <a class="el" href="classGlib_1_1ustring.html">Glib::ustring</a>& text)</td></tr>
<tr><td> </td><td><font size=-1><em>Causes the given <em>text</em> to appear superimposed on the progress bar.</em> <a href="#a6"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>double </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a7">get_fraction</a> () const</td></tr>
<tr><td> </td><td><font size=-1><em>Returns the current fraction of the task that's been completed.</em> <a href="#a7"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a8">set_fraction</a> (double fraction)</td></tr>
<tr><td> </td><td><font size=-1><em>Causes the progress bar to "fill in" the given fraction of the bar.</em> <a href="#a8"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>double </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a9">get_pulse_step</a> () const</td></tr>
<tr><td> </td><td><font size=-1><em>Retrieves the pulse step set with <a class="el" href="classGtk_1_1ProgressBar.html#a10">set_pulse_step()</a>.</em> <a href="#a9"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a10">set_pulse_step</a> (double fraction)</td></tr>
<tr><td> </td><td><font size=-1><em>Sets the fraction of total progress bar length to move the bouncing block for each call to <a class="el" href="classGtk_1_1ProgressBar.html#a4">pulse()</a>.</em> <a href="#a10"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a11">set_orientation</a> (<a class="el" href="group__gtkmmEnums.html#a101">ProgressBarOrientation</a> orientation=PROGRESS_LEFT_TO_RIGHT)</td></tr>
<tr><td> </td><td><font size=-1><em>Causes the progress bar to switch to a different orientation (left-to-right, right-to-left, top-to-bottom, or bottom-to-top).</em> <a href="#a11"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="group__gtkmmEnums.html#a101">ProgressBarOrientation</a> </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a12">get_orientation</a> () const</td></tr>
<tr><td> </td><td><font size=-1><em>Retrieves the current progress bar orientation.</em> <a href="#a12"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classGlib_1_1PropertyProxy.html">Glib::PropertyProxy</a><double> </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a13">property_fraction</a> ()</td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classGlib_1_1PropertyProxy.html">Glib::PropertyProxy</a><double> </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a14">property_pulse_step</a> ()</td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classGlib_1_1PropertyProxy.html">Glib::PropertyProxy</a><<a class="el" href="group__gtkmmEnums.html#a101">ProgressBarOrientation</a>> </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a15">property_orientation</a> ()</td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classGlib_1_1PropertyProxy.html">Glib::PropertyProxy</a><<a class="el" href="classGlib_1_1ustring.html">Glib::ustring</a>> </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#a16">property_text</a> ()</td></tr>
<tr><td colspan=2><br><h2>Related Functions</h2></td></tr>
<tr><td colspan=2>(Note that these are not member functions.)<br><br></td></tr>
<tr><td nowrap align=right valign=top>Gtk::ProgressBar* </td><td valign=bottom><a class="el" href="classGtk_1_1ProgressBar.html#k0">wrap</a> (GtkProgressBar* object, bool take_copy=false)</td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A widget which indicates progress visually.
<p>
The Gtk::ProgressBar is typically used to display the progress of a long running operation. It provides a visual clue that processing is underway. The Gtk::ProgressBar can be used in two different modes: percentage mode and activity mode.
<p>
When an application can determine how much work needs to take place (e.g. read a fixed number of bytes from a file) and can monitor its progress, it can use the Gtk::ProgressBar in percentage mode and the user sees a growing bar indicating the percentage of the work that has been completed. In this mode, the application is required to call <a class="el" href="classGtk_1_1ProgressBar.html#a8">set_fraction()</a> periodically to update the progress bar.
<p>
When an application has no accurate way of knowing the amount of work to do, it can use the Gtk::ProgressBar in activity mode, which shows activity by a block moving back and forth within the progress area. In this mode, the application is required to call <a class="el" href="classGtk_1_1ProgressBar.html#a4">pulse()</a> perodically to update the progress bar.
<p>
There is quite a bit of flexibility provided to control the appearance of the Gtk::ProgressBar. Functions are provided to control the orientation of the bar, optional text can be displayed along with the bar, and the step size used in activity mode can be set.
<p>
<hr><h2>Constructor & Destructor Documentation</h2>
<a name="a0" doxytag="Gtk::ProgressBar::~ProgressBar"></a><p>
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<td class="md" nowrap valign="top"> virtual Gtk::ProgressBar::~ProgressBar </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap><code> [virtual]</code></td>
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<a name="a3" doxytag="Gtk::ProgressBar::ProgressBar"></a><p>
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<td class="md" nowrap valign="top"> Gtk::ProgressBar::ProgressBar </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
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<hr><h2>Member Function Documentation</h2>
<a name="a7" doxytag="Gtk::ProgressBar::get_fraction"></a><p>
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<td class="md" nowrap valign="top"> double Gtk::ProgressBar::get_fraction </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap> const</td>
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<p>
Returns the current fraction of the task that's been completed.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>A fraction from 0.0 to 1.0. </dd></dl>
</td>
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<a name="a12" doxytag="Gtk::ProgressBar::get_orientation"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="group__gtkmmEnums.html#a101">ProgressBarOrientation</a> Gtk::ProgressBar::get_orientation </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap> const</td>
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<p>
Retrieves the current progress bar orientation.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>Orientation of the progress bar. </dd></dl>
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<a name="a9" doxytag="Gtk::ProgressBar::get_pulse_step"></a><p>
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<td class="md" nowrap valign="top"> double Gtk::ProgressBar::get_pulse_step </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap> const</td>
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<p>
Retrieves the pulse step set with <a class="el" href="classGtk_1_1ProgressBar.html#a10">set_pulse_step()</a>.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>A fraction from 0.0 to 1.0. </dd></dl>
</td>
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<a name="a5" doxytag="Gtk::ProgressBar::get_text"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1ustring.html">Glib::ustring</a> Gtk::ProgressBar::get_text </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap> const</td>
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<p>
Retrieves the text displayed superimposed on the progress bar, if any, otherwise <code>0</code>.
<p>
The return value is a reference to the text, not a copy of it, so will become invalid if you change the text in the progress bar. <dl compact><dt><b>Returns:</b></dt><dd>Text, or <code>0</code>; this string is owned by the widget and should not be modified or freed. </dd></dl>
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<a name="a2" doxytag="Gtk::ProgressBar::gobj"></a><p>
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<td class="md" nowrap valign="top"> const GtkProgressBar* Gtk::ProgressBar::gobj </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap> const<code> [inline]</code></td>
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<p>
Reimplemented from <a class="el" href="classGtk_1_1Widget.html#a2">Gtk::Widget</a>. </td>
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<a name="a1" doxytag="Gtk::ProgressBar::gobj"></a><p>
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<td class="md" nowrap valign="top"> GtkProgressBar* Gtk::ProgressBar::gobj </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap><code> [inline]</code></td>
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<p>
Reimplemented from <a class="el" href="classGtk_1_1Widget.html#a1">Gtk::Widget</a>. </td>
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<a name="a13" doxytag="Gtk::ProgressBar::property_fraction"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1PropertyProxy.html">Glib::PropertyProxy</a><double> Gtk::ProgressBar::property_fraction </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap></td>
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<a name="a15" doxytag="Gtk::ProgressBar::property_orientation"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1PropertyProxy.html">Glib::PropertyProxy</a><<a class="el" href="group__gtkmmEnums.html#a101">ProgressBarOrientation</a>> Gtk::ProgressBar::property_orientation </td>
<td class="md" valign="top">(</td>
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<a name="a14" doxytag="Gtk::ProgressBar::property_pulse_step"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1PropertyProxy.html">Glib::PropertyProxy</a><double> Gtk::ProgressBar::property_pulse_step </td>
<td class="md" valign="top">(</td>
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<a name="a16" doxytag="Gtk::ProgressBar::property_text"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1PropertyProxy.html">Glib::PropertyProxy</a><<a class="el" href="classGlib_1_1ustring.html">Glib::ustring</a>> Gtk::ProgressBar::property_text </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
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<a name="a4" doxytag="Gtk::ProgressBar::pulse"></a><p>
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<td class="md" nowrap valign="top"> void Gtk::ProgressBar::pulse </td>
<td class="md" valign="top">(</td>
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<p>
Indicates that some progress is made, but you don't know how much.
<p>
Causes the progress bar to enter "activity mode," where a block bounces back and forth. Each call to <a class="el" href="classGtk_1_1ProgressBar.html#a4">pulse()</a> causes the block to move by a little bit (the amount of movement per pulse is determined by set_pulse_step()). </td>
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<a name="a8" doxytag="Gtk::ProgressBar::set_fraction"></a><p>
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<td class="md" nowrap valign="top"> void Gtk::ProgressBar::set_fraction </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname1" valign="top" nowrap> <em>fraction</em> </td>
<td class="md" valign="top">) </td>
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<p>
Causes the progress bar to "fill in" the given fraction of the bar.
<p>
The fraction should be between 0.0 and 1.0, inclusive. <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign=top><em>fraction</em> </td><td>Fraction of the task that's been completed. </td></tr>
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</dl>
</td>
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<a name="a11" doxytag="Gtk::ProgressBar::set_orientation"></a><p>
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<td class="md" nowrap valign="top"> void Gtk::ProgressBar::set_orientation </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top"><a class="el" href="group__gtkmmEnums.html#a101">ProgressBarOrientation</a> </td>
<td class="mdname1" valign="top" nowrap> <em>orientation</em> = PROGRESS_LEFT_TO_RIGHT </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap></td>
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</td>
<td>
<p>
Causes the progress bar to switch to a different orientation (left-to-right, right-to-left, top-to-bottom, or bottom-to-top).
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign=top><em>orientation</em> </td><td>Orientation of the progress bar. </td></tr>
</table>
</dl>
</td>
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<a name="a10" doxytag="Gtk::ProgressBar::set_pulse_step"></a><p>
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<td class="md" nowrap valign="top"> void Gtk::ProgressBar::set_pulse_step </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname1" valign="top" nowrap> <em>fraction</em> </td>
<td class="md" valign="top">) </td>
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<p>
Sets the fraction of total progress bar length to move the bouncing block for each call to <a class="el" href="classGtk_1_1ProgressBar.html#a4">pulse()</a>.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td valign=top><em>fraction</em> </td><td>Fraction between 0.0 and 1.0. </td></tr>
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<a name="a6" doxytag="Gtk::ProgressBar::set_text"></a><p>
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<td class="md" nowrap valign="top"> void Gtk::ProgressBar::set_text </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">const <a class="el" href="classGlib_1_1ustring.html">Glib::ustring</a>& </td>
<td class="mdname1" valign="top" nowrap> <em>text</em> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap></td>
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<p>
Causes the given <em>text</em> to appear superimposed on the progress bar.
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td valign=top><em>text</em> </td><td>A UTF-8 string. </td></tr>
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<hr><h2>Friends And Related Function Documentation</h2>
<a name="k0" doxytag="Gtk::ProgressBar::wrap"></a><p>
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<td class="md" nowrap valign="top"> Gtk::ProgressBar* wrap </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">GtkProgressBar* </td>
<td class="mdname" nowrap> <em>object</em>, </td>
</tr>
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<td></td>
<td></td>
<td class="md" nowrap>bool </td>
<td class="mdname" nowrap> <em>take_copy</em> = false</td>
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<td></td>
<td class="md">) </td>
<td class="md" colspan="2"><code> [related]</code></td>
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<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="progressbar_8h.html">progressbar.h</a></ul>
<hr><address><small>
Generated for gtkmm by <a href="http://www.doxygen.org/index.html">
Doxygen</a> 1.3-rc1 © 1997-2001</small></address>
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