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<a class="el" href="namespaceGdk.html">Gdk</a>::<a class="el" href="classGdk_1_1Region.html">Region</a></div>
<h1>Gdk::Region Class Reference</h1><!-- doxytag: class="Gdk::Region" --><a href="classGdk_1_1Region-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
This is an opaque data type holding a set of arbitrary pixels, and is usually used for clipping graphical operations (see <a class="el" href="classGdk_1_1GC.html#6109789b4e63e62443fa9433c77525e8">Gdk::GC::set_clip_region()</a>).
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<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#f7753c68bccb64f394914e11b866d2ab">empty</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Finds out if the <a class="el" href="classGdk_1_1Region.html">Gdk::Region</a> is empty. <a href="#f7753c68bccb64f394914e11b866d2ab"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#a3c12f5281e440334f941d542e5b8a5e">get_clipbox</a> (const <a class="el" href="classGdk_1_1Rectangle.html">Rectangle</a>& rectangle)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Obtains the smallest rectangle which includes the entire <a class="el" href="classGdk_1_1Region.html">Gdk::Region</a>. <a href="#a3c12f5281e440334f941d542e5b8a5e"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="elRef" doxygen="glibmm_doxygen_tags:../../../../glibmm-2.4/docs/reference/html/" href="../../../../glibmm-2.4/docs/reference/html/classGlib_1_1ArrayHandle.html">Glib::ArrayHandle</a><<a class="el" href="classGdk_1_1Rectangle.html">Rectangle</a>> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#bf960f3d630a2806195b644d8583d0f7">get_rectangles</a> () const</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const <a class="el" href="region_8h.html#b92da37c74bfa757f4b586edc9710089">GdkRegion</a>* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#3c7db57263025b29b6d8fbe62303b50e">gobj</a> () const</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="region_8h.html#b92da37c74bfa757f4b586edc9710089">GdkRegion</a>* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#88ddc5f67e8f73ff670940a5bf271d95">gobj</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="region_8h.html#b92da37c74bfa757f4b586edc9710089">GdkRegion</a>* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#c5644460d519f9cd09c539d569e454a5">gobj_copy</a> () const</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Provides access to the underlying C instance. The caller is responsible for freeing it. Use when directly setting fields in structs. <a href="#c5644460d519f9cd09c539d569e454a5"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#cd2355a5079d9db24f71aa19836284b5">intersect</a> (const <a class="el" href="classGdk_1_1Region.html">Region</a>& source2)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the area of <em>source1</em> to the intersection of the areas of <em>source1</em> and <em>source2</em> . <a href="#cd2355a5079d9db24f71aa19836284b5"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#aa148e85944b0f80aac5c63dcdf0d539">offset</a> (int dx, int dy)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Moves a region the specified distance. <a href="#aa148e85944b0f80aac5c63dcdf0d539"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classGdk_1_1Region.html">Region</a>& </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#4c9371596bda2f44397c2c8aed19451e">operator=</a> (const <a class="el" href="classGdk_1_1Region.html">Region</a>& src)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#a970ecf413ac23939f529b9e1c64e4ac">point_in</a> (int x, int y)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Finds out if a point is in a region. <a href="#a970ecf413ac23939f529b9e1c64e4ac"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="group__gdkmmEnums.html#g08d3ef020cf9281bc1ef38eb476a522a">OverlapType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#7c07ccb6b945f3aea839cf5a240e9cda">rect_in</a> (const <a class="el" href="classGdk_1_1Rectangle.html">Rectangle</a>& rect)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Tests whether a rectangle is within a region. <a href="#7c07ccb6b945f3aea839cf5a240e9cda"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#a6cf19ceb186845c0ec58f3608b7012f">Region</a> (const <a class="el" href="classGdk_1_1Rectangle.html">Rectangle</a>& rectangle)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#fbaeee985278c783b1c2ef8024ef5798">Region</a> (const <a class="elRef" doxygen="glibmm_doxygen_tags:../../../../glibmm-2.4/docs/reference/html/" href="../../../../glibmm-2.4/docs/reference/html/classGlib_1_1ArrayHandle.html">Glib::ArrayHandle</a><<a class="el" href="classGdk_1_1Point.html">Gdk::Point</a>>& points, <a class="el" href="group__gdkmmEnums.html#gcdee003b8806d447553fd52634a7c135">FillRule</a> fill_rule)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#572e1d42d9f8fa0921e4020e54d89879">Region</a> (const <a class="el" href="classGdk_1_1Region.html">Region</a>& src)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#9d713e1c3563e4cec3d29e5484ba0ae9">Region</a> (<a class="el" href="region_8h.html#b92da37c74bfa757f4b586edc9710089">GdkRegion</a>* castitem, bool make_a_copy=false)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#cbf9cddc76ff394cca43693cf205001f">Region</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#704914b3d479f04287bda71e3505601c">shrink</a> (int dx, int dy)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Resizes a region by the specified amount. <a href="#704914b3d479f04287bda71e3505601c"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#182373eb640d80bcf9b3a37a496e770d">spans_intersect_foreach</a> (GdkSpan* spans, int n_spans, bool sorted, GdkSpanFunc function, gpointer data)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Calls a function on each span in the intersection of <em>region</em> and <em>spans</em> . <a href="#182373eb640d80bcf9b3a37a496e770d"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#3bda6bea1ed064c6ab41700d24b2933e">subtract</a> (const <a class="el" href="classGdk_1_1Region.html">Region</a>& source2)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Subtracts the area of <em>source2</em> from the area <em>source1</em> . <a href="#3bda6bea1ed064c6ab41700d24b2933e"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#9c911592e7eba011d2c1874ca4ec2b37">union_</a> (const <a class="el" href="classGdk_1_1Region.html">Region</a>& source2)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the area of <em>source1</em> to the union of the areas of <em>source1</em> and <em>source2</em> . <a href="#9c911592e7eba011d2c1874ca4ec2b37"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#c2099c7feb3f0db0a13599ce82a64ccb">union_with_rect</a> (const <a class="el" href="classGdk_1_1Rectangle.html">Rectangle</a>& rect)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the area of <em>region</em> to the union of the areas of <em>region</em> and <em>rect</em> . <a href="#c2099c7feb3f0db0a13599ce82a64ccb"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#13df0bfd25da620cae29dc8421b144ad">xor_</a> (const <a class="el" href="classGdk_1_1Region.html">Region</a>& source2)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the area of <em>source1</em> to the exclusive-OR of the areas of <em>source1</em> and <em>source2</em> . <a href="#13df0bfd25da620cae29dc8421b144ad"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#090553fce729ac41f5ee86670596e060">~Region</a> ()</td></tr>
<tr><td colspan="2"><br><h2>Protected Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="region_8h.html#b92da37c74bfa757f4b586edc9710089">GdkRegion</a>* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#a848e0e9212789e21ac405d96baad62b">gobject_</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 class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#a1bf387412637ba1e7bde5d96be04716">operator!=</a> (const <a class="el" href="classGdk_1_1Region.html">Region</a>& lhs, const <a class="el" href="classGdk_1_1Region.html">Region</a>& rhs)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight"><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>lhs</em> </td><td>The left-hand side </td></tr>
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</dl>
<a href="#a1bf387412637ba1e7bde5d96be04716"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#e7352d5986918d60055ffec688285606">operator==</a> (const <a class="el" href="classGdk_1_1Region.html">Region</a>& lhs, const <a class="el" href="classGdk_1_1Region.html">Region</a>& rhs)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight"><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>lhs</em> </td><td>The left-hand side </td></tr>
</table>
</dl>
<a href="#e7352d5986918d60055ffec688285606"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classGdk_1_1Region.html">Gdk::Region</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1Region.html#984fe93ad98e4caa2765c67380425bfb">wrap</a> (<a class="el" href="region_8h.html#b92da37c74bfa757f4b586edc9710089">GdkRegion</a>* object, bool take_copy=false)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">A <a class="elRef" doxygen="glibmm_doxygen_tags:../../../../glibmm-2.4/docs/reference/html/" href="../../../../glibmm-2.4/docs/reference/html/namespaceGlib.html#671306f4a3a0cae5ab4d7a9d54886592">Glib::wrap()</a> method for this object. <a href="#984fe93ad98e4caa2765c67380425bfb"></a><br></td></tr>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="cbf9cddc76ff394cca43693cf205001f"></a><!-- doxytag: member="Gdk::Region::Region" ref="cbf9cddc76ff394cca43693cf205001f" args="()" -->
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<td class="memname">Gdk::Region::Region </td>
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<a class="anchor" name="9d713e1c3563e4cec3d29e5484ba0ae9"></a><!-- doxytag: member="Gdk::Region::Region" ref="9d713e1c3563e4cec3d29e5484ba0ae9" args="(GdkRegion *castitem, bool make_a_copy=false)" -->
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<td class="memname">Gdk::Region::Region </td>
<td>(</td>
<td class="paramtype"><a class="el" href="region_8h.html#b92da37c74bfa757f4b586edc9710089">GdkRegion</a>* </td>
<td class="paramname"> <em>castitem</em>, </td>
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<td class="paramname"> <em>make_a_copy</em> = <code>false</code></td><td> </td>
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<td>)</td>
<td></td><td></td><td width="100%"><code> [explicit]</code></td>
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<a class="anchor" name="572e1d42d9f8fa0921e4020e54d89879"></a><!-- doxytag: member="Gdk::Region::Region" ref="572e1d42d9f8fa0921e4020e54d89879" args="(const Region &src)" -->
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<td class="memname">Gdk::Region::Region </td>
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<td class="paramtype">const <a class="el" href="classGdk_1_1Region.html">Region</a>& </td>
<td class="paramname"> <em>src</em> </td>
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<a class="anchor" name="090553fce729ac41f5ee86670596e060"></a><!-- doxytag: member="Gdk::Region::~Region" ref="090553fce729ac41f5ee86670596e060" args="()" -->
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<td class="memname">Gdk::Region::~Region </td>
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<a class="anchor" name="fbaeee985278c783b1c2ef8024ef5798"></a><!-- doxytag: member="Gdk::Region::Region" ref="fbaeee985278c783b1c2ef8024ef5798" args="(const Glib::ArrayHandle< Gdk::Point > &points, FillRule fill_rule)" -->
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<td>(</td>
<td class="paramtype">const <a class="elRef" doxygen="glibmm_doxygen_tags:../../../../glibmm-2.4/docs/reference/html/" href="../../../../glibmm-2.4/docs/reference/html/classGlib_1_1ArrayHandle.html">Glib::ArrayHandle</a><<a class="el" href="classGdk_1_1Point.html">Gdk::Point</a>>& </td>
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<td class="paramtype"><a class="el" href="group__gdkmmEnums.html#gcdee003b8806d447553fd52634a7c135">FillRule</a> </td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="f7753c68bccb64f394914e11b866d2ab"></a><!-- doxytag: member="Gdk::Region::empty" ref="f7753c68bccb64f394914e11b866d2ab" args="()" -->
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Finds out if the <a class="el" href="classGdk_1_1Region.html">Gdk::Region</a> is empty.
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<dl class="return" compact><dt><b>Returns:</b></dt><dd><code>true</code> if <em>region</em> is empty. </dd></dl>
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<a class="anchor" name="a3c12f5281e440334f941d542e5b8a5e"></a><!-- doxytag: member="Gdk::Region::get_clipbox" ref="a3c12f5281e440334f941d542e5b8a5e" args="(const Rectangle &rectangle)" -->
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<td class="memname">void Gdk::Region::get_clipbox </td>
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Obtains the smallest rectangle which includes the entire <a class="el" href="classGdk_1_1Region.html">Gdk::Region</a>.
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td valign="top"></td><td valign="top"><em>rectangle</em> </td><td>Return location for the clipbox. </td></tr>
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<td class="memname"><a class="elRef" doxygen="glibmm_doxygen_tags:../../../../glibmm-2.4/docs/reference/html/" href="../../../../glibmm-2.4/docs/reference/html/classGlib_1_1ArrayHandle.html">Glib::ArrayHandle</a><<a class="el" href="classGdk_1_1Rectangle.html">Rectangle</a>> Gdk::Region::get_rectangles </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"> const</td>
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<a class="anchor" name="3c7db57263025b29b6d8fbe62303b50e"></a><!-- doxytag: member="Gdk::Region::gobj" ref="3c7db57263025b29b6d8fbe62303b50e" args="() const" -->
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<td class="memname">const <a class="el" href="region_8h.html#b92da37c74bfa757f4b586edc9710089">GdkRegion</a>* Gdk::Region::gobj </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"> const<code> [inline]</code></td>
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<a class="anchor" name="88ddc5f67e8f73ff670940a5bf271d95"></a><!-- doxytag: member="Gdk::Region::gobj" ref="88ddc5f67e8f73ff670940a5bf271d95" args="()" -->
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<td class="memname"><a class="el" href="region_8h.html#b92da37c74bfa757f4b586edc9710089">GdkRegion</a>* Gdk::Region::gobj </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"><code> [inline]</code></td>
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<p>
</div>
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<a class="anchor" name="c5644460d519f9cd09c539d569e454a5"></a><!-- doxytag: member="Gdk::Region::gobj_copy" ref="c5644460d519f9cd09c539d569e454a5" args="() const" -->
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<td class="memname"><a class="el" href="region_8h.html#b92da37c74bfa757f4b586edc9710089">GdkRegion</a>* Gdk::Region::gobj_copy </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"> const</td>
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<p>
Provides access to the underlying C instance. The caller is responsible for freeing it. Use when directly setting fields in structs.
<p>
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<a class="anchor" name="cd2355a5079d9db24f71aa19836284b5"></a><!-- doxytag: member="Gdk::Region::intersect" ref="cd2355a5079d9db24f71aa19836284b5" args="(const Region &source2)" -->
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<td class="memname">void Gdk::Region::intersect </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classGdk_1_1Region.html">Region</a>& </td>
<td class="paramname"> <em>source2</em> </td>
<td> ) </td>
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<p>
Sets the area of <em>source1</em> to the intersection of the areas of <em>source1</em> and <em>source2</em> .
<p>
The resulting area is the set of pixels contained in both <em>source1</em> and <em>source2</em> . <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>source2</em> </td><td>Another <a class="el" href="classGdk_1_1Region.html">Gdk::Region</a>. </td></tr>
</table>
</dl>
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<a class="anchor" name="aa148e85944b0f80aac5c63dcdf0d539"></a><!-- doxytag: member="Gdk::Region::offset" ref="aa148e85944b0f80aac5c63dcdf0d539" args="(int dx, int dy)" -->
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<td class="memname">void Gdk::Region::offset </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>dx</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>dy</em></td><td> </td>
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<p>
Moves a region the specified distance.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>dx</em> </td><td>The distance to move the region horizontally. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>dy</em> </td><td>The distance to move the region vertically. </td></tr>
</table>
</dl>
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<a class="anchor" name="4c9371596bda2f44397c2c8aed19451e"></a><!-- doxytag: member="Gdk::Region::operator=" ref="4c9371596bda2f44397c2c8aed19451e" args="(const Region &src)" -->
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<td class="memname"><a class="el" href="classGdk_1_1Region.html">Region</a>& Gdk::Region::operator= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classGdk_1_1Region.html">Region</a>& </td>
<td class="paramname"> <em>src</em> </td>
<td> ) </td>
<td width="100%"></td>
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<p>
</div>
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<a class="anchor" name="a970ecf413ac23939f529b9e1c64e4ac"></a><!-- doxytag: member="Gdk::Region::point_in" ref="a970ecf413ac23939f529b9e1c64e4ac" args="(int x, int y)" -->
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<td class="memname">bool Gdk::Region::point_in </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>x</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>y</em></td><td> </td>
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<p>
Finds out if a point is in a region.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>x</em> </td><td>The x coordinate of a point. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>y</em> </td><td>The y coordinate of a point. </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd><code>true</code> if the point is in <em>region</em> . </dd></dl>
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<a class="anchor" name="7c07ccb6b945f3aea839cf5a240e9cda"></a><!-- doxytag: member="Gdk::Region::rect_in" ref="7c07ccb6b945f3aea839cf5a240e9cda" args="(const Rectangle &rect)" -->
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<td class="memname"><a class="el" href="group__gdkmmEnums.html#g08d3ef020cf9281bc1ef38eb476a522a">OverlapType</a> Gdk::Region::rect_in </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classGdk_1_1Rectangle.html">Rectangle</a>& </td>
<td class="paramname"> <em>rect</em> </td>
<td> ) </td>
<td width="100%"></td>
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<p>
Tests whether a rectangle is within a region.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>rectangle</em> </td><td>A <a class="el" href="classGdk_1_1Rectangle.html">Gdk::Rectangle</a>. </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd><a class="el" href="group__gdkmmEnums.html#gg08d3ef020cf9281bc1ef38eb476a522a9491ae10f500d9606448c7837d4803da">Gdk::OVERLAP_RECTANGLE_IN</a>, <a class="el" href="group__gdkmmEnums.html#gg08d3ef020cf9281bc1ef38eb476a522a7ed33eb6333285003f6f5495d2e2b1fd">Gdk::OVERLAP_RECTANGLE_OUT</a>, or <a class="el" href="group__gdkmmEnums.html#gg08d3ef020cf9281bc1ef38eb476a522a89be1ceefbfc26195ca619fb023b7629">Gdk::OVERLAP_RECTANGLE_PART</a>, depending on whether the rectangle is inside, outside, or partly inside the <a class="el" href="classGdk_1_1Region.html">Gdk::Region</a>, respectively. </dd></dl>
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<a class="anchor" name="704914b3d479f04287bda71e3505601c"></a><!-- doxytag: member="Gdk::Region::shrink" ref="704914b3d479f04287bda71e3505601c" args="(int dx, int dy)" -->
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<td class="memname">void Gdk::Region::shrink </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>dx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>dy</em></td><td> </td>
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<td></td>
<td>)</td>
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<p>
Resizes a region by the specified amount.
<p>
Positive values shrink the region. Negative values expand it. <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>dx</em> </td><td>The number of pixels to shrink the region horizontally. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>dy</em> </td><td>The number of pixels to shrink the region vertically. </td></tr>
</table>
</dl>
</div>
</div><p>
<a class="anchor" name="182373eb640d80bcf9b3a37a496e770d"></a><!-- doxytag: member="Gdk::Region::spans_intersect_foreach" ref="182373eb640d80bcf9b3a37a496e770d" args="(GdkSpan *spans, int n_spans, bool sorted, GdkSpanFunc function, gpointer data)" -->
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<td class="memname">void Gdk::Region::spans_intersect_foreach </td>
<td>(</td>
<td class="paramtype">GdkSpan * </td>
<td class="paramname"> <em>spans</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>n_spans</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"> <em>sorted</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">GdkSpanFunc </td>
<td class="paramname"> <em>function</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">gpointer </td>
<td class="paramname"> <em>data</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
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<p>
Calls a function on each span in the intersection of <em>region</em> and <em>spans</em> .
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>spans</em> </td><td>An array of Gdk::Spans. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>n_spans</em> </td><td>The length of <em>spans</em> . </td></tr>
<tr><td valign="top"></td><td valign="top"><em>sorted</em> </td><td><code>true</code> if <em>spans</em> is sorted wrt. the y coordinate. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>function</em> </td><td>Function to call on each span in the intersection. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>data</em> </td><td>Data to pass to <em>function</em> . </td></tr>
</table>
</dl>
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</div><p>
<a class="anchor" name="3bda6bea1ed064c6ab41700d24b2933e"></a><!-- doxytag: member="Gdk::Region::subtract" ref="3bda6bea1ed064c6ab41700d24b2933e" args="(const Region &source2)" -->
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<td class="memname">void Gdk::Region::subtract </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classGdk_1_1Region.html">Region</a>& </td>
<td class="paramname"> <em>source2</em> </td>
<td> ) </td>
<td width="100%"></td>
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<p>
Subtracts the area of <em>source2</em> from the area <em>source1</em> .
<p>
The resulting area is the set of pixels contained in <em>source1</em> but not in <em>source2</em> . <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>source2</em> </td><td>Another <a class="el" href="classGdk_1_1Region.html">Gdk::Region</a>. </td></tr>
</table>
</dl>
</div>
</div><p>
<a class="anchor" name="9c911592e7eba011d2c1874ca4ec2b37"></a><!-- doxytag: member="Gdk::Region::union_" ref="9c911592e7eba011d2c1874ca4ec2b37" args="(const Region &source2)" -->
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<td class="memname">void Gdk::Region::union_ </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classGdk_1_1Region.html">Region</a>& </td>
<td class="paramname"> <em>source2</em> </td>
<td> ) </td>
<td width="100%"></td>
</tr>
</table>
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<div class="memdoc">
<p>
Sets the area of <em>source1</em> to the union of the areas of <em>source1</em> and <em>source2</em> .
<p>
The resulting area is the set of pixels contained in either <em>source1</em> or <em>source2</em> . <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>source2</em> </td><td>A <a class="el" href="classGdk_1_1Region.html">Gdk::Region</a>. </td></tr>
</table>
</dl>
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<a class="anchor" name="c2099c7feb3f0db0a13599ce82a64ccb"></a><!-- doxytag: member="Gdk::Region::union_with_rect" ref="c2099c7feb3f0db0a13599ce82a64ccb" args="(const Rectangle &rect)" -->
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<td class="memname">void Gdk::Region::union_with_rect </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classGdk_1_1Rectangle.html">Rectangle</a>& </td>
<td class="paramname"> <em>rect</em> </td>
<td> ) </td>
<td width="100%"></td>
</tr>
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<div class="memdoc">
<p>
Sets the area of <em>region</em> to the union of the areas of <em>region</em> and <em>rect</em> .
<p>
The resulting area is the set of pixels contained in either <em>region</em> or <em>rect</em> . <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>rect</em> </td><td>A <a class="el" href="classGdk_1_1Rectangle.html">Gdk::Rectangle</a>. </td></tr>
</table>
</dl>
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</div><p>
<a class="anchor" name="13df0bfd25da620cae29dc8421b144ad"></a><!-- doxytag: member="Gdk::Region::xor_" ref="13df0bfd25da620cae29dc8421b144ad" args="(const Region &source2)" -->
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<td class="memname">void Gdk::Region::xor_ </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classGdk_1_1Region.html">Region</a>& </td>
<td class="paramname"> <em>source2</em> </td>
<td> ) </td>
<td width="100%"></td>
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<p>
Sets the area of <em>source1</em> to the exclusive-OR of the areas of <em>source1</em> and <em>source2</em> .
<p>
The resulting area is the set of pixels contained in one or the other of the two sources but not in both. <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>source2</em> </td><td>Another <a class="el" href="classGdk_1_1Region.html">Gdk::Region</a>. </td></tr>
</table>
</dl>
</div>
</div><p>
<hr><h2>Friends And Related Function Documentation</h2>
<a class="anchor" name="a1bf387412637ba1e7bde5d96be04716"></a><!-- doxytag: member="Gdk::Region::operator!=" ref="a1bf387412637ba1e7bde5d96be04716" args="(const Region &lhs, const Region &rhs)" -->
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<td class="memname">bool operator!= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classGdk_1_1Region.html">Region</a>& </td>
<td class="paramname"> <em>lhs</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classGdk_1_1Region.html">Region</a>& </td>
<td class="paramname"> <em>rhs</em></td><td> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [related]</code></td>
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<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>lhs</em> </td><td>The left-hand side </td></tr>
</table>
</dl>
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>rhs</em> </td><td>The right-hand side </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>The result </dd></dl>
</div>
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<a class="anchor" name="e7352d5986918d60055ffec688285606"></a><!-- doxytag: member="Gdk::Region::operator==" ref="e7352d5986918d60055ffec688285606" args="(const Region &lhs, const Region &rhs)" -->
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<td class="memname">bool operator== </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classGdk_1_1Region.html">Region</a>& </td>
<td class="paramname"> <em>lhs</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classGdk_1_1Region.html">Region</a>& </td>
<td class="paramname"> <em>rhs</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [related]</code></td>
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</table>
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<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>lhs</em> </td><td>The left-hand side </td></tr>
</table>
</dl>
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>rhs</em> </td><td>The right-hand side </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>The result </dd></dl>
</div>
</div><p>
<a class="anchor" name="984fe93ad98e4caa2765c67380425bfb"></a><!-- doxytag: member="Gdk::Region::wrap" ref="984fe93ad98e4caa2765c67380425bfb" args="(GdkRegion *object, bool take_copy=false)" -->
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<td class="memname"><a class="el" href="classGdk_1_1Region.html">Gdk::Region</a> wrap </td>
<td>(</td>
<td class="paramtype"><a class="el" href="region_8h.html#b92da37c74bfa757f4b586edc9710089">GdkRegion</a>* </td>
<td class="paramname"> <em>object</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"> <em>take_copy</em> = <code>false</code></td><td> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [related]</code></td>
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<p>
A <a class="elRef" doxygen="glibmm_doxygen_tags:../../../../glibmm-2.4/docs/reference/html/" href="../../../../glibmm-2.4/docs/reference/html/namespaceGlib.html#671306f4a3a0cae5ab4d7a9d54886592">Glib::wrap()</a> method for this object.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>object</em> </td><td>The C instance. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>take_copy</em> </td><td>False if the result should take ownership of the C instance. True if it should take a new copy or ref. </td></tr>
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</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>A C++ instance that wraps this C instance. </dd></dl>
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</div><p>
<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="a848e0e9212789e21ac405d96baad62b"></a><!-- doxytag: member="Gdk::Region::gobject_" ref="a848e0e9212789e21ac405d96baad62b" args="" -->
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<td class="memname"><a class="el" href="region_8h.html#b92da37c74bfa757f4b586edc9710089">GdkRegion</a>* <a class="el" href="classGdk_1_1Region.html#a848e0e9212789e21ac405d96baad62b">Gdk::Region::gobject_</a><code> [protected]</code> </td>
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<div class="memdoc">
<p>
</div>
</div><p>
<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="region_8h.html">region.h</a></ul>
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