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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>libquicktime: Reading text</title>
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<h1>Reading text<br>
<small>
[<a class="el" href="group__text.html">Text</a>]</small>
</h1>Decode text.
<a href="#_details">More...</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__text__decode.html#g27d81096eeceadb3d4a8b5fcb0a95712">lqt_text_tracks</a> (<a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> *file)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the number of text tracks. <a href="#g27d81096eeceadb3d4a8b5fcb0a95712"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__text__decode.html#g6874341a7bb714cbcb81765378ea2359">lqt_get_text_language</a> (<a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> *file, int track, char *language)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the text language. <a href="#g6874341a7bb714cbcb81765378ea2359"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__text__decode.html#geda99cb4a8d0dbbce957b4431573eda2">lqt_text_time_scale</a> (<a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> *file, int track)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the timescale for a text track. <a href="#geda99cb4a8d0dbbce957b4431573eda2"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__text__decode.html#g28f142233822e8ead0d82ef4aa8c8bfc">lqt_get_text_box</a> (<a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> *file, int track, uint16_t *top, uint16_t *left, uint16_t *bottom, uint16_t *right)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the text box of a text track. <a href="#g28f142233822e8ead0d82ef4aa8c8bfc"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__text__decode.html#g2b6e62f99edaaa5a4bf08022a3960988">lqt_read_text</a> (<a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> *file, int track, char **text, int *text_alloc, int64_t *timestamp, int64_t *duration)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Read a text sample. <a href="#g2b6e62f99edaaa5a4bf08022a3960988"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__text__decode.html#g0278b205c4ec1eee2dfb632feeb75fd3">lqt_is_chapter_track</a> (<a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> *file, int track)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Check if a track is a chapter track. <a href="#g0278b205c4ec1eee2dfb632feeb75fd3"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__text__decode.html#g9c73cc2b44f8924c2f64fba530401679">lqt_text_samples</a> (<a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> *file, int track)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the total number of text samples. <a href="#g9c73cc2b44f8924c2f64fba530401679"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__text__decode.html#ga067ee18f55c582889eb0ed5c0364dbf">lqt_set_text_position</a> (<a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> *file, int track, int64_t position)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Go to a specific sample. <a href="#ga067ee18f55c582889eb0ed5c0364dbf"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__text__decode.html#g4fb65836ae339e937d566c827befb73f">lqt_set_text_time</a> (<a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> *file, int track, int64_t time)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Go to a specific time. <a href="#g4fb65836ae339e937d566c827befb73f"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__text__decode.html#g9b85949f52d61896e9d5dd369d427ca8">lqt_get_text_fg_color</a> (<a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> *file, int track, uint16_t *r, uint16_t *g, uint16_t *b, uint16_t *a)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the foreground color of a text track. <a href="#g9b85949f52d61896e9d5dd369d427ca8"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__text__decode.html#gb3aa16de82da27f85da5eb2316934433">lqt_get_text_bg_color</a> (<a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> *file, int track, uint16_t *r, uint16_t *g, uint16_t *b, uint16_t *a)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the background color of a text track. <a href="#gb3aa16de82da27f85da5eb2316934433"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
Decode text.
<p>
<hr><h2>Function Documentation</h2>
<a class="anchor" name="g27d81096eeceadb3d4a8b5fcb0a95712"></a><!-- doxytag: member="lqt.h::lqt_text_tracks" ref="g27d81096eeceadb3d4a8b5fcb0a95712" args="(quicktime_t *file)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int lqt_text_tracks </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> * </td>
<td class="paramname"> <em>file</em> </td>
<td> ) </td>
<td width="100%"></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Get the number of text tracks.
<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>file</em> </td><td>A quicktime handle </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>The number of text tracks found in the file </dd></dl>
</div>
</div><p>
<a class="anchor" name="g6874341a7bb714cbcb81765378ea2359"></a><!-- doxytag: member="lqt.h::lqt_get_text_language" ref="g6874341a7bb714cbcb81765378ea2359" args="(quicktime_t *file, int track, char *language)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int lqt_get_text_language </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> * </td>
<td class="paramname"> <em>file</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>track</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char * </td>
<td class="paramname"> <em>language</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Get the text language.
<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>file</em> </td><td>A quicktime handle </td></tr>
<tr><td valign="top"></td><td valign="top"><em>track</em> </td><td>Track index (starting with 0) </td></tr>
<tr><td valign="top"></td><td valign="top"><em>language</em> </td><td>Returns ISO-639 Language code </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>1 on success, 0 on error.</dd></dl>
The language code is a 3-character code, English is "eng", Japanese is "jpn".
</div>
</div><p>
<a class="anchor" name="geda99cb4a8d0dbbce957b4431573eda2"></a><!-- doxytag: member="lqt.h::lqt_text_time_scale" ref="geda99cb4a8d0dbbce957b4431573eda2" args="(quicktime_t *file, int track)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int lqt_text_time_scale </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> * </td>
<td class="paramname"> <em>file</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>track</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Get the timescale for a text track.
<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>file</em> </td><td>A quicktime handle </td></tr>
<tr><td valign="top"></td><td valign="top"><em>track</em> </td><td>Track index (starting with 0) </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>The timescale of the track. </dd></dl>
</div>
</div><p>
<a class="anchor" name="g28f142233822e8ead0d82ef4aa8c8bfc"></a><!-- doxytag: member="lqt.h::lqt_get_text_box" ref="g28f142233822e8ead0d82ef4aa8c8bfc" args="(quicktime_t *file, int track, uint16_t *top, uint16_t *left, uint16_t *bottom, uint16_t *right)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void lqt_get_text_box </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> * </td>
<td class="paramname"> <em>file</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>track</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t * </td>
<td class="paramname"> <em>top</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t * </td>
<td class="paramname"> <em>left</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t * </td>
<td class="paramname"> <em>bottom</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t * </td>
<td class="paramname"> <em>right</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Set the text box of a text track.
<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>file</em> </td><td>A quicktime handle </td></tr>
<tr><td valign="top"></td><td valign="top"><em>track</em> </td><td>Track index (starting with 0) </td></tr>
<tr><td valign="top"></td><td valign="top"><em>top</em> </td><td>Returns the top border </td></tr>
<tr><td valign="top"></td><td valign="top"><em>left</em> </td><td>Returns the left border </td></tr>
<tr><td valign="top"></td><td valign="top"><em>bottom</em> </td><td>Returns the bottom border </td></tr>
<tr><td valign="top"></td><td valign="top"><em>right</em> </td><td>Returns the right border </td></tr>
</table>
</dl>
</div>
</div><p>
<a class="anchor" name="g2b6e62f99edaaa5a4bf08022a3960988"></a><!-- doxytag: member="lqt.h::lqt_read_text" ref="g2b6e62f99edaaa5a4bf08022a3960988" args="(quicktime_t *file, int track, char **text, int *text_alloc, int64_t *timestamp, int64_t *duration)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int lqt_read_text </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> * </td>
<td class="paramname"> <em>file</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>track</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char ** </td>
<td class="paramname"> <em>text</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"> <em>text_alloc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int64_t * </td>
<td class="paramname"> <em>timestamp</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int64_t * </td>
<td class="paramname"> <em>duration</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Read a text sample.
<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>file</em> </td><td>A quicktime handle </td></tr>
<tr><td valign="top"></td><td valign="top"><em>track</em> </td><td>Track index (starting with 0) </td></tr>
<tr><td valign="top"></td><td valign="top"><em>text</em> </td><td>Address of a buffer </td></tr>
<tr><td valign="top"></td><td valign="top"><em>text_alloc</em> </td><td>Allocated bytes for this buffer (will be changed) </td></tr>
<tr><td valign="top"></td><td valign="top"><em>timestamp</em> </td><td>Returns the timestamp of the sample </td></tr>
<tr><td valign="top"></td><td valign="top"><em>duration</em> </td><td>Returns the duration of the sample </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>1 if a sample was decoded, 0 if the track is finished</dd></dl>
This funtion calls realloc() to make sure there is enough space for for the text. It's a good idea to always pass the same buffer to this function (set to NULL initially) and free it after the file is closed.
</div>
</div><p>
<a class="anchor" name="g0278b205c4ec1eee2dfb632feeb75fd3"></a><!-- doxytag: member="lqt.h::lqt_is_chapter_track" ref="g0278b205c4ec1eee2dfb632feeb75fd3" args="(quicktime_t *file, int track)" -->
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<td class="memname">int lqt_is_chapter_track </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> * </td>
<td class="paramname"> <em>file</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>track</em></td><td> </td>
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<p>
Check if a track is a chapter track.
<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>file</em> </td><td>A quicktime handle </td></tr>
<tr><td valign="top"></td><td valign="top"><em>track</em> </td><td>Track index (starting with 0) </td></tr>
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<dl class="return" compact><dt><b>Returns:</b></dt><dd>1 if the text track is a chapter track, 0 else </dd></dl>
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<a class="anchor" name="g9c73cc2b44f8924c2f64fba530401679"></a><!-- doxytag: member="lqt.h::lqt_text_samples" ref="g9c73cc2b44f8924c2f64fba530401679" args="(quicktime_t *file, int track)" -->
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<td class="memname">int64_t lqt_text_samples </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> * </td>
<td class="paramname"> <em>file</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>track</em></td><td> </td>
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<td>)</td>
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<p>
Get the total number of text samples.
<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>file</em> </td><td>A quicktime handle </td></tr>
<tr><td valign="top"></td><td valign="top"><em>track</em> </td><td>Track index (starting with 0) </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>The number of samples </dd></dl>
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<a class="anchor" name="ga067ee18f55c582889eb0ed5c0364dbf"></a><!-- doxytag: member="lqt.h::lqt_set_text_position" ref="ga067ee18f55c582889eb0ed5c0364dbf" args="(quicktime_t *file, int track, int64_t position)" -->
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<td class="memname">void lqt_set_text_position </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> * </td>
<td class="paramname"> <em>file</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>track</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int64_t </td>
<td class="paramname"> <em>position</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td width="100%"></td>
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<p>
Go to a specific sample.
<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>file</em> </td><td>A quicktime handle </td></tr>
<tr><td valign="top"></td><td valign="top"><em>track</em> </td><td>Track index (starting with 0) </td></tr>
<tr><td valign="top"></td><td valign="top"><em>position</em> </td><td>The sample position (starting with 0) </td></tr>
</table>
</dl>
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</div><p>
<a class="anchor" name="g4fb65836ae339e937d566c827befb73f"></a><!-- doxytag: member="lqt.h::lqt_set_text_time" ref="g4fb65836ae339e937d566c827befb73f" args="(quicktime_t *file, int track, int64_t time)" -->
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<td class="memname">void lqt_set_text_time </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> * </td>
<td class="paramname"> <em>file</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>track</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int64_t </td>
<td class="paramname"> <em>time</em></td><td> </td>
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<td>)</td>
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<p>
Go to a specific time.
<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>file</em> </td><td>A quicktime handle </td></tr>
<tr><td valign="top"></td><td valign="top"><em>track</em> </td><td>Track index (starting with 0) </td></tr>
<tr><td valign="top"></td><td valign="top"><em>time</em> </td><td>Time</td></tr>
</table>
</dl>
This wil reposition the text track such, that the next call to <a class="el" href="group__text__decode.html#g2b6e62f99edaaa5a4bf08022a3960988">lqt_read_text</a> will return a sample with at least the timestamp you specified.
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<a class="anchor" name="g9b85949f52d61896e9d5dd369d427ca8"></a><!-- doxytag: member="lqt.h::lqt_get_text_fg_color" ref="g9b85949f52d61896e9d5dd369d427ca8" args="(quicktime_t *file, int track, uint16_t *r, uint16_t *g, uint16_t *b, uint16_t *a)" -->
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<td class="memname">void lqt_get_text_fg_color </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> * </td>
<td class="paramname"> <em>file</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>track</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t * </td>
<td class="paramname"> <em>r</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t * </td>
<td class="paramname"> <em>g</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t * </td>
<td class="paramname"> <em>b</em>, </td>
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<td></td>
<td class="paramtype">uint16_t * </td>
<td class="paramname"> <em>a</em></td><td> </td>
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<td>)</td>
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<p>
Get the foreground color of a text track.
<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>file</em> </td><td>A quicktime handle </td></tr>
<tr><td valign="top"></td><td valign="top"><em>track</em> </td><td>Track index (starting with 0) </td></tr>
<tr><td valign="top"></td><td valign="top"><em>r</em> </td><td>Returns red </td></tr>
<tr><td valign="top"></td><td valign="top"><em>g</em> </td><td>Returns green </td></tr>
<tr><td valign="top"></td><td valign="top"><em>b</em> </td><td>Returns blue </td></tr>
<tr><td valign="top"></td><td valign="top"><em>a</em> </td><td>Returns alpha</td></tr>
</table>
</dl>
Color values are between 0x0000 and 0xffff.
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</div><p>
<a class="anchor" name="gb3aa16de82da27f85da5eb2316934433"></a><!-- doxytag: member="lqt.h::lqt_get_text_bg_color" ref="gb3aa16de82da27f85da5eb2316934433" args="(quicktime_t *file, int track, uint16_t *r, uint16_t *g, uint16_t *b, uint16_t *a)" -->
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<td class="memname">void lqt_get_text_bg_color </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__general.html#gef65e7300455a3b25eafc7485ec2efa4">quicktime_t</a> * </td>
<td class="paramname"> <em>file</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>track</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t * </td>
<td class="paramname"> <em>r</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t * </td>
<td class="paramname"> <em>g</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t * </td>
<td class="paramname"> <em>b</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t * </td>
<td class="paramname"> <em>a</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
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</tr>
</table>
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<p>
Get the background color of a text track.
<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>file</em> </td><td>A quicktime handle </td></tr>
<tr><td valign="top"></td><td valign="top"><em>track</em> </td><td>Track index (starting with 0) </td></tr>
<tr><td valign="top"></td><td valign="top"><em>r</em> </td><td>Returns red </td></tr>
<tr><td valign="top"></td><td valign="top"><em>g</em> </td><td>Returns green </td></tr>
<tr><td valign="top"></td><td valign="top"><em>b</em> </td><td>Returns blue </td></tr>
<tr><td valign="top"></td><td valign="top"><em>a</em> </td><td>Returns alpha</td></tr>
</table>
</dl>
Color values are between 0x0000 and 0xffff.
</div>
</div><p>
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