diff options
Diffstat (limited to 'libs/cairo-1.16.0/doc/public/html/cairo-PNG-Support.html')
| -rw-r--r-- | libs/cairo-1.16.0/doc/public/html/cairo-PNG-Support.html | 413 |
1 files changed, 0 insertions, 413 deletions
diff --git a/libs/cairo-1.16.0/doc/public/html/cairo-PNG-Support.html b/libs/cairo-1.16.0/doc/public/html/cairo-PNG-Support.html deleted file mode 100644 index fd24b15..0000000 --- a/libs/cairo-1.16.0/doc/public/html/cairo-PNG-Support.html +++ /dev/null @@ -1,413 +0,0 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> -<title>PNG Support: Cairo: A Vector Graphics Library</title> -<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> -<link rel="home" href="index.html" title="Cairo: A Vector Graphics Library"> -<link rel="up" href="cairo-surfaces.html" title="Surfaces"> -<link rel="prev" href="cairo-PDF-Surfaces.html" title="PDF Surfaces"> -<link rel="next" href="cairo-PostScript-Surfaces.html" title="PostScript Surfaces"> -<meta name="generator" content="GTK-Doc V1.27 (XML mode)"> -<link rel="stylesheet" href="style.css" type="text/css"> -</head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> -<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle"> -<td width="100%" align="left" class="shortcuts"> -<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> - <a href="#cairo-PNG-Support.description" class="shortcut">Description</a></span> -</td> -<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> -<td><a accesskey="u" href="cairo-surfaces.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> -<td><a accesskey="p" href="cairo-PDF-Surfaces.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> -<td><a accesskey="n" href="cairo-PostScript-Surfaces.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> -</tr></table> -<div class="refentry"> -<a name="cairo-PNG-Support"></a><div class="titlepage"></div> -<div class="refnamediv"><table width="100%"><tr> -<td valign="top"> -<h2><span class="refentrytitle"><a name="cairo-PNG-Support.top_of_page"></a>PNG Support</span></h2> -<p>PNG Support — Reading and writing PNG images</p> -</td> -<td class="gallery_image" valign="top" align="right"></td> -</tr></table></div> -<div class="refsect1"> -<a name="cairo-PNG-Support.functions"></a><h2>Functions</h2> -<div class="informaltable"><table class="informaltable" width="100%" border="0"> -<colgroup> -<col width="150px" class="functions_return"> -<col class="functions_name"> -</colgroup> -<tbody> -<tr> -<td class="function_type"> -<a class="link" href="cairo-cairo-surface-t.html#cairo-surface-t" title="cairo_surface_t"><span class="returnvalue">cairo_surface_t</span></a> * -</td> -<td class="function_name"> -<a class="link" href="cairo-PNG-Support.html#cairo-image-surface-create-from-png" title="cairo_image_surface_create_from_png ()">cairo_image_surface_create_from_png</a> <span class="c_punctuation">()</span> -</td> -</tr> -<tr> -<td class="function_type"> -<a class="link" href="cairo-Error-handling.html#cairo-status-t" title="enum cairo_status_t"><span class="returnvalue">cairo_status_t</span></a> -</td> -<td class="function_name"> -<span class="c_punctuation">(</span><a class="link" href="cairo-PNG-Support.html#cairo-read-func-t" title="cairo_read_func_t ()">*cairo_read_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> -</td> -</tr> -<tr> -<td class="function_type"> -<a class="link" href="cairo-cairo-surface-t.html#cairo-surface-t" title="cairo_surface_t"><span class="returnvalue">cairo_surface_t</span></a> * -</td> -<td class="function_name"> -<a class="link" href="cairo-PNG-Support.html#cairo-image-surface-create-from-png-stream" title="cairo_image_surface_create_from_png_stream ()">cairo_image_surface_create_from_png_stream</a> <span class="c_punctuation">()</span> -</td> -</tr> -<tr> -<td class="function_type"> -<a class="link" href="cairo-Error-handling.html#cairo-status-t" title="enum cairo_status_t"><span class="returnvalue">cairo_status_t</span></a> -</td> -<td class="function_name"> -<a class="link" href="cairo-PNG-Support.html#cairo-surface-write-to-png" title="cairo_surface_write_to_png ()">cairo_surface_write_to_png</a> <span class="c_punctuation">()</span> -</td> -</tr> -<tr> -<td class="function_type"> -<a class="link" href="cairo-Error-handling.html#cairo-status-t" title="enum cairo_status_t"><span class="returnvalue">cairo_status_t</span></a> -</td> -<td class="function_name"> -<span class="c_punctuation">(</span><a class="link" href="cairo-PNG-Support.html#cairo-write-func-t" title="cairo_write_func_t ()">*cairo_write_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> -</td> -</tr> -<tr> -<td class="function_type"> -<a class="link" href="cairo-Error-handling.html#cairo-status-t" title="enum cairo_status_t"><span class="returnvalue">cairo_status_t</span></a> -</td> -<td class="function_name"> -<a class="link" href="cairo-PNG-Support.html#cairo-surface-write-to-png-stream" title="cairo_surface_write_to_png_stream ()">cairo_surface_write_to_png_stream</a> <span class="c_punctuation">()</span> -</td> -</tr> -</tbody> -</table></div> -</div> -<div class="refsect1"> -<a name="cairo-PNG-Support.other"></a><h2>Types and Values</h2> -<div class="informaltable"><table class="informaltable" width="100%" border="0"> -<colgroup> -<col width="150px" class="name"> -<col class="description"> -</colgroup> -<tbody><tr> -<td class="define_keyword">#define</td> -<td class="function_name"><a class="link" href="cairo-PNG-Support.html#CAIRO-HAS-PNG-FUNCTIONS:CAPS" title="CAIRO_HAS_PNG_FUNCTIONS">CAIRO_HAS_PNG_FUNCTIONS</a></td> -</tr></tbody> -</table></div> -</div> -<div class="refsect1"> -<a name="cairo-PNG-Support.description"></a><h2>Description</h2> -<p>The PNG functions allow reading PNG images into image surfaces, and writing -any surface to a PNG file.</p> -<p>It is a toy API. It only offers very simple support for reading and -writing PNG files, which is sufficient for testing and -demonstration purposes. Applications which need more control over -the generated PNG file should access the pixel data directly, using -<a class="link" href="cairo-Image-Surfaces.html#cairo-image-surface-get-data" title="cairo_image_surface_get_data ()"><code class="function">cairo_image_surface_get_data()</code></a> or a backend-specific access -function, and process it with another library, e.g. gdk-pixbuf or -libpng.</p> -</div> -<div class="refsect1"> -<a name="cairo-PNG-Support.functions_details"></a><h2>Functions</h2> -<div class="refsect2"> -<a name="cairo-image-surface-create-from-png"></a><h3>cairo_image_surface_create_from_png ()</h3> -<pre class="programlisting"><a class="link" href="cairo-cairo-surface-t.html#cairo-surface-t" title="cairo_surface_t"><span class="returnvalue">cairo_surface_t</span></a> * -cairo_image_surface_create_from_png (<em class="parameter"><code>const <span class="type">char</span> *filename</code></em>);</pre> -<p>Creates a new image surface and initializes the contents to the -given PNG file.</p> -<div class="refsect3"> -<a name="cairo-image-surface-create-from-png.parameters"></a><h4>Parameters</h4> -<div class="informaltable"><table class="informaltable" width="100%" border="0"> -<colgroup> -<col width="150px" class="parameters_name"> -<col class="parameters_description"> -<col width="200px" class="parameters_annotations"> -</colgroup> -<tbody><tr> -<td class="parameter_name"><p>filename</p></td> -<td class="parameter_description"><p>name of PNG file to load. On Windows this filename -is encoded in UTF-8.</p></td> -<td class="parameter_annotations"> </td> -</tr></tbody> -</table></div> -</div> -<div class="refsect3"> -<a name="cairo-image-surface-create-from-png.returns"></a><h4>Returns</h4> -<p> a new <a class="link" href="cairo-cairo-surface-t.html#cairo-surface-t" title="cairo_surface_t"><span class="type">cairo_surface_t</span></a> initialized with the contents -of the PNG file, or a "nil" surface if any error occurred. A nil -surface can be checked for with cairo_surface_status(surface) which -may return one of the following values:</p> -<p><a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-NO-MEMORY:CAPS"><code class="literal">CAIRO_STATUS_NO_MEMORY</code></a> -<a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-FILE-NOT-FOUND:CAPS"><code class="literal">CAIRO_STATUS_FILE_NOT_FOUND</code></a> -<a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-READ-ERROR:CAPS"><code class="literal">CAIRO_STATUS_READ_ERROR</code></a> -<a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-PNG-ERROR:CAPS"><code class="literal">CAIRO_STATUS_PNG_ERROR</code></a></p> -<p>Alternatively, you can allow errors to propagate through the drawing -operations and check the status on the context upon completion -using <a class="link" href="cairo-cairo-t.html#cairo-status" title="cairo_status ()"><code class="function">cairo_status()</code></a>.</p> -</div> -<p class="since">Since: 1.0</p> -</div> -<hr> -<div class="refsect2"> -<a name="cairo-read-func-t"></a><h3>cairo_read_func_t ()</h3> -<pre class="programlisting"><a class="link" href="cairo-Error-handling.html#cairo-status-t" title="enum cairo_status_t"><span class="returnvalue">cairo_status_t</span></a> -<span class="c_punctuation">(</span>*cairo_read_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><span class="type">void</span> *closure</code></em>, - <em class="parameter"><code>unsigned <span class="type">char</span> *data</code></em>, - <em class="parameter"><code>unsigned <span class="type">int</span> length</code></em>);</pre> -<p><a class="link" href="cairo-PNG-Support.html#cairo-read-func-t" title="cairo_read_func_t ()"><span class="type">cairo_read_func_t</span></a> is the type of function which is called when a -backend needs to read data from an input stream. It is passed the -closure which was specified by the user at the time the read -function was registered, the buffer to read the data into and the -length of the data in bytes. The read function should return -<a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-SUCCESS:CAPS"><code class="literal">CAIRO_STATUS_SUCCESS</code></a> if all the data was successfully read, -<a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-READ-ERROR:CAPS"><code class="literal">CAIRO_STATUS_READ_ERROR</code></a> otherwise.</p> -<div class="refsect3"> -<a name="cairo-read-func-t.parameters"></a><h4>Parameters</h4> -<div class="informaltable"><table class="informaltable" width="100%" border="0"> -<colgroup> -<col width="150px" class="parameters_name"> -<col class="parameters_description"> -<col width="200px" class="parameters_annotations"> -</colgroup> -<tbody> -<tr> -<td class="parameter_name"><p>closure</p></td> -<td class="parameter_description"><p>the input closure</p></td> -<td class="parameter_annotations"> </td> -</tr> -<tr> -<td class="parameter_name"><p>data</p></td> -<td class="parameter_description"><p>the buffer into which to read the data</p></td> -<td class="parameter_annotations"> </td> -</tr> -<tr> -<td class="parameter_name"><p>length</p></td> -<td class="parameter_description"><p>the amount of data to read</p></td> -<td class="parameter_annotations"> </td> -</tr> -</tbody> -</table></div> -</div> -<div class="refsect3"> -<a name="cairo-read-func-t.returns"></a><h4>Returns</h4> -<p> the status code of the read operation</p> -</div> -<p class="since">Since: 1.0</p> -</div> -<hr> -<div class="refsect2"> -<a name="cairo-image-surface-create-from-png-stream"></a><h3>cairo_image_surface_create_from_png_stream ()</h3> -<pre class="programlisting"><a class="link" href="cairo-cairo-surface-t.html#cairo-surface-t" title="cairo_surface_t"><span class="returnvalue">cairo_surface_t</span></a> * -cairo_image_surface_create_from_png_stream - (<em class="parameter"><code><a class="link" href="cairo-PNG-Support.html#cairo-read-func-t" title="cairo_read_func_t ()"><span class="type">cairo_read_func_t</span></a> read_func</code></em>, - <em class="parameter"><code><span class="type">void</span> *closure</code></em>);</pre> -<p>Creates a new image surface from PNG data read incrementally -via the <em class="parameter"><code>read_func</code></em> - function.</p> -<div class="refsect3"> -<a name="cairo-image-surface-create-from-png-stream.parameters"></a><h4>Parameters</h4> -<div class="informaltable"><table class="informaltable" width="100%" border="0"> -<colgroup> -<col width="150px" class="parameters_name"> -<col class="parameters_description"> -<col width="200px" class="parameters_annotations"> -</colgroup> -<tbody> -<tr> -<td class="parameter_name"><p>read_func</p></td> -<td class="parameter_description"><p>function called to read the data of the file</p></td> -<td class="parameter_annotations"> </td> -</tr> -<tr> -<td class="parameter_name"><p>closure</p></td> -<td class="parameter_description"><p>data to pass to <em class="parameter"><code>read_func</code></em> -.</p></td> -<td class="parameter_annotations"> </td> -</tr> -</tbody> -</table></div> -</div> -<div class="refsect3"> -<a name="cairo-image-surface-create-from-png-stream.returns"></a><h4>Returns</h4> -<p> a new <a class="link" href="cairo-cairo-surface-t.html#cairo-surface-t" title="cairo_surface_t"><span class="type">cairo_surface_t</span></a> initialized with the contents -of the PNG file or a "nil" surface if the data read is not a valid PNG image -or memory could not be allocated for the operation. A nil -surface can be checked for with cairo_surface_status(surface) which -may return one of the following values:</p> -<p><a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-NO-MEMORY:CAPS"><code class="literal">CAIRO_STATUS_NO_MEMORY</code></a> -<a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-READ-ERROR:CAPS"><code class="literal">CAIRO_STATUS_READ_ERROR</code></a> -<a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-PNG-ERROR:CAPS"><code class="literal">CAIRO_STATUS_PNG_ERROR</code></a></p> -<p>Alternatively, you can allow errors to propagate through the drawing -operations and check the status on the context upon completion -using <a class="link" href="cairo-cairo-t.html#cairo-status" title="cairo_status ()"><code class="function">cairo_status()</code></a>.</p> -</div> -<p class="since">Since: 1.0</p> -</div> -<hr> -<div class="refsect2"> -<a name="cairo-surface-write-to-png"></a><h3>cairo_surface_write_to_png ()</h3> -<pre class="programlisting"><a class="link" href="cairo-Error-handling.html#cairo-status-t" title="enum cairo_status_t"><span class="returnvalue">cairo_status_t</span></a> -cairo_surface_write_to_png (<em class="parameter"><code><a class="link" href="cairo-cairo-surface-t.html#cairo-surface-t" title="cairo_surface_t"><span class="type">cairo_surface_t</span></a> *surface</code></em>, - <em class="parameter"><code>const <span class="type">char</span> *filename</code></em>);</pre> -<p>Writes the contents of <em class="parameter"><code>surface</code></em> - to a new file <em class="parameter"><code>filename</code></em> - as a PNG -image.</p> -<div class="refsect3"> -<a name="cairo-surface-write-to-png.parameters"></a><h4>Parameters</h4> -<div class="informaltable"><table class="informaltable" width="100%" border="0"> -<colgroup> -<col width="150px" class="parameters_name"> -<col class="parameters_description"> -<col width="200px" class="parameters_annotations"> -</colgroup> -<tbody> -<tr> -<td class="parameter_name"><p>surface</p></td> -<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-surface-t.html#cairo-surface-t" title="cairo_surface_t"><span class="type">cairo_surface_t</span></a> with pixel contents</p></td> -<td class="parameter_annotations"> </td> -</tr> -<tr> -<td class="parameter_name"><p>filename</p></td> -<td class="parameter_description"><p>the name of a file to write to; on Windows this filename -is encoded in UTF-8.</p></td> -<td class="parameter_annotations"> </td> -</tr> -</tbody> -</table></div> -</div> -<div class="refsect3"> -<a name="cairo-surface-write-to-png.returns"></a><h4>Returns</h4> -<p> <a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-SUCCESS:CAPS"><code class="literal">CAIRO_STATUS_SUCCESS</code></a> if the PNG file was written -successfully. Otherwise, <a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-NO-MEMORY:CAPS"><code class="literal">CAIRO_STATUS_NO_MEMORY</code></a> if memory could not -be allocated for the operation or -<a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-SURFACE-TYPE-MISMATCH:CAPS"><code class="literal">CAIRO_STATUS_SURFACE_TYPE_MISMATCH</code></a> if the surface does not have -pixel contents, or <a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-WRITE-ERROR:CAPS"><code class="literal">CAIRO_STATUS_WRITE_ERROR</code></a> if an I/O error occurs -while attempting to write the file, or <a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-PNG-ERROR:CAPS"><code class="literal">CAIRO_STATUS_PNG_ERROR</code></a> if libpng -returned an error.</p> -</div> -<p class="since">Since: 1.0</p> -</div> -<hr> -<div class="refsect2"> -<a name="cairo-write-func-t"></a><h3>cairo_write_func_t ()</h3> -<pre class="programlisting"><a class="link" href="cairo-Error-handling.html#cairo-status-t" title="enum cairo_status_t"><span class="returnvalue">cairo_status_t</span></a> -<span class="c_punctuation">(</span>*cairo_write_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><span class="type">void</span> *closure</code></em>, - <em class="parameter"><code>const unsigned <span class="type">char</span> *data</code></em>, - <em class="parameter"><code>unsigned <span class="type">int</span> length</code></em>);</pre> -<p><a class="link" href="cairo-PNG-Support.html#cairo-write-func-t" title="cairo_write_func_t ()"><span class="type">cairo_write_func_t</span></a> is the type of function which is called when a -backend needs to write data to an output stream. It is passed the -closure which was specified by the user at the time the write -function was registered, the data to write and the length of the -data in bytes. The write function should return -<a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-SUCCESS:CAPS"><code class="literal">CAIRO_STATUS_SUCCESS</code></a> if all the data was successfully written, -<a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-WRITE-ERROR:CAPS"><code class="literal">CAIRO_STATUS_WRITE_ERROR</code></a> otherwise.</p> -<div class="refsect3"> -<a name="cairo-write-func-t.parameters"></a><h4>Parameters</h4> -<div class="informaltable"><table class="informaltable" width="100%" border="0"> -<colgroup> -<col width="150px" class="parameters_name"> -<col class="parameters_description"> -<col width="200px" class="parameters_annotations"> -</colgroup> -<tbody> -<tr> -<td class="parameter_name"><p>closure</p></td> -<td class="parameter_description"><p>the output closure</p></td> -<td class="parameter_annotations"> </td> -</tr> -<tr> -<td class="parameter_name"><p>data</p></td> -<td class="parameter_description"><p>the buffer containing the data to write</p></td> -<td class="parameter_annotations"> </td> -</tr> -<tr> -<td class="parameter_name"><p>length</p></td> -<td class="parameter_description"><p>the amount of data to write</p></td> -<td class="parameter_annotations"> </td> -</tr> -</tbody> -</table></div> -</div> -<div class="refsect3"> -<a name="cairo-write-func-t.returns"></a><h4>Returns</h4> -<p> the status code of the write operation</p> -</div> -<p class="since">Since: 1.0</p> -</div> -<hr> -<div class="refsect2"> -<a name="cairo-surface-write-to-png-stream"></a><h3>cairo_surface_write_to_png_stream ()</h3> -<pre class="programlisting"><a class="link" href="cairo-Error-handling.html#cairo-status-t" title="enum cairo_status_t"><span class="returnvalue">cairo_status_t</span></a> -cairo_surface_write_to_png_stream (<em class="parameter"><code><a class="link" href="cairo-cairo-surface-t.html#cairo-surface-t" title="cairo_surface_t"><span class="type">cairo_surface_t</span></a> *surface</code></em>, - <em class="parameter"><code><a class="link" href="cairo-PNG-Support.html#cairo-write-func-t" title="cairo_write_func_t ()"><span class="type">cairo_write_func_t</span></a> write_func</code></em>, - <em class="parameter"><code><span class="type">void</span> *closure</code></em>);</pre> -<p>Writes the image surface to the write function.</p> -<div class="refsect3"> -<a name="cairo-surface-write-to-png-stream.parameters"></a><h4>Parameters</h4> -<div class="informaltable"><table class="informaltable" width="100%" border="0"> -<colgroup> -<col width="150px" class="parameters_name"> -<col class="parameters_description"> -<col width="200px" class="parameters_annotations"> -</colgroup> -<tbody> -<tr> -<td class="parameter_name"><p>surface</p></td> -<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-surface-t.html#cairo-surface-t" title="cairo_surface_t"><span class="type">cairo_surface_t</span></a> with pixel contents</p></td> -<td class="parameter_annotations"> </td> -</tr> -<tr> -<td class="parameter_name"><p>write_func</p></td> -<td class="parameter_description"><p>a <a class="link" href="cairo-PNG-Support.html#cairo-write-func-t" title="cairo_write_func_t ()"><span class="type">cairo_write_func_t</span></a></p></td> -<td class="parameter_annotations"> </td> -</tr> -<tr> -<td class="parameter_name"><p>closure</p></td> -<td class="parameter_description"><p>closure data for the write function</p></td> -<td class="parameter_annotations"> </td> -</tr> -</tbody> -</table></div> -</div> -<div class="refsect3"> -<a name="cairo-surface-write-to-png-stream.returns"></a><h4>Returns</h4> -<p> <a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-SUCCESS:CAPS"><code class="literal">CAIRO_STATUS_SUCCESS</code></a> if the PNG file was written -successfully. Otherwise, <a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-NO-MEMORY:CAPS"><code class="literal">CAIRO_STATUS_NO_MEMORY</code></a> is returned if -memory could not be allocated for the operation, -<a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-SURFACE-TYPE-MISMATCH:CAPS"><code class="literal">CAIRO_STATUS_SURFACE_TYPE_MISMATCH</code></a> if the surface does not have -pixel contents, or <a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-PNG-ERROR:CAPS"><code class="literal">CAIRO_STATUS_PNG_ERROR</code></a> if libpng -returned an error.</p> -</div> -<p class="since">Since: 1.0</p> -</div> -</div> -<div class="refsect1"> -<a name="cairo-PNG-Support.other_details"></a><h2>Types and Values</h2> -<div class="refsect2"> -<a name="CAIRO-HAS-PNG-FUNCTIONS:CAPS"></a><h3>CAIRO_HAS_PNG_FUNCTIONS</h3> -<pre class="programlisting">#define CAIRO_HAS_PNG_FUNCTIONS 1 -</pre> -<p>Defined if the PNG functions are available. -This macro can be used to conditionally compile code using the cairo -PNG functions.</p> -<p class="since">Since: 1.0</p> -</div> -</div> -<div class="refsect1"> -<a name="cairo-PNG-Support.see-also"></a><h2>See Also</h2> -<p><a class="link" href="cairo-cairo-surface-t.html#cairo-surface-t" title="cairo_surface_t"><span class="type">cairo_surface_t</span></a></p> -</div> -</div> -<div class="footer"> -<hr>Generated by GTK-Doc V1.27</div> -</body> -</html>
\ No newline at end of file |