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<title>MagickCore, C API: Annotate an Image @ ImageMagick</title>
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<p class="text-center"><a href="annotate.html#AnnotateImage">AnnotateImage</a> &#8226; <a href="annotate.html#FormatMagickCaption">FormatMagickCaption</a> &#8226; <a href="annotate.html#GetMultilineTypeMetrics">GetMultilineTypeMetrics</a> &#8226; <a href="annotate.html#GetTypeMetrics">GetTypeMetrics</a></p>
<h2><a href="../../api/MagickCore/annotate_8c.html" id="AnnotateImage">AnnotateImage</a></h2>
<p>AnnotateImage() annotates an image with text. Optionally you can include any of the following bits of information about the image by embedding the appropriate special characters:</p>
<pre class="text">
\n newline
\r carriage return
&lt; less-than character.
&gt; greater-than character.
&amp; ampersand character.
a percent sign
b file size of image read in
c comment meta-data property
d directory component of path
e filename extension or suffix
f filename (including suffix)
g layer canvas page geometry (equivalent to "WxHXY")
h current image height in pixels
i image filename (note: becomes output filename for "info:")
k CALCULATED: number of unique colors
l label meta-data property
m image file format (file magic)
n number of images in current image sequence
o output filename (used for delegates)
p index of image in current image list
q quantum depth (compile-time constant)
r image class and colorspace
s scene number (from input unless re-assigned)
t filename without directory or extension (suffix)
u unique temporary filename (used for delegates)
w current width in pixels
x x resolution (density)
y y resolution (density)
z image depth (as read in unless modified, image save depth)
A image transparency channel enabled (true/false)
C image compression type
D image GIF dispose method
G original image size (wxh; before any resizes)
H page (canvas) height
M Magick filename (original file exactly as given, including read mods)
O page (canvas) offset ( = XY )
P page (canvas) size ( = WxH )
Q image compression quality ( 0 = default )
S ?? scenes ??
T image time delay (in centi-seconds)
U image resolution units
W page (canvas) width
X page (canvas) x offset (including sign)
Y page (canvas) y offset (including sign)
Z unique filename (used for delegates)
@ CALCULATED: trim bounding box (without actually trimming)
# CALCULATED: 'signature' hash of image values
</pre>
<p>The format of the AnnotateImage method is:</p>
<pre class="text">
MagickBooleanType AnnotateImage(Image *image,DrawInfo *draw_info,
ExceptionInfo *exception)
</pre>
<p>A description of each parameter follows:</p>
<dd>
</dd>
<dd> </dd>
<dl class="dl-horizontal">
<dt>image</dt>
<dd>the image. </dd>
<dd> </dd>
<dt>draw_info</dt>
<dd>the draw info. </dd>
<dd> </dd>
<dt>exception</dt>
<dd>return any errors or warnings in this structure. </dd>
<dd> </dd>
</dl>
<h2><a href="../../api/MagickCore/annotate_8c.html" id="FormatMagickCaption">FormatMagickCaption</a></h2>
<p>FormatMagickCaption() formats a caption so that it fits within the image width. It returns the number of lines in the formatted caption.</p>
<p>The format of the FormatMagickCaption method is:</p>
<pre class="text">
ssize_t FormatMagickCaption(Image *image,DrawInfo *draw_info,
const MagickBooleanType split,TypeMetric *metrics,char **caption,
ExceptionInfo *exception)
</pre>
<p>A description of each parameter follows.</p>
<dt>image</dt>
<p>The image.</p>
<dt>draw_info</dt>
<p>the draw info.</p>
<dt>split</dt>
<p>when no convenient line breaks-- insert newline.</p>
<dt>metrics</dt>
<p>Return the font metrics in this structure.</p>
<dt>caption</dt>
<p>the caption.</p>
<dt>exception</dt>
<p>return any errors or warnings in this structure.</p>
<h2><a href="../../api/MagickCore/annotate_8c.html" id="GetMultilineTypeMetrics">GetMultilineTypeMetrics</a></h2>
<p>GetMultilineTypeMetrics() returns the following information for the specified font and text:</p>
<pre class="text">
character width
character height
ascender
descender
text width
text height
maximum horizontal advance
bounds: x1
bounds: y1
bounds: x2
bounds: y2
origin: x
origin: y
underline position
underline thickness
</pre>
<p>This method is like GetTypeMetrics() but it returns the maximum text width and height for multiple lines of text.</p>
<p>The format of the GetMultilineTypeMetrics method is:</p>
<pre class="text">
MagickBooleanType GetMultilineTypeMetrics(Image *image,
const DrawInfo *draw_info,TypeMetric *metrics,ExceptionInfo *exception)
</pre>
<p>A description of each parameter follows:</p>
<dd>
</dd>
<dd> </dd>
<dl class="dl-horizontal">
<dt>image</dt>
<dd>the image. </dd>
<dd> </dd>
<dt>draw_info</dt>
<dd>the draw info. </dd>
<dd> </dd>
<dt>metrics</dt>
<dd>Return the font metrics in this structure. </dd>
<dd> </dd>
<dt>exception</dt>
<dd>return any errors or warnings in this structure. </dd>
<dd> </dd>
</dl>
<h2><a href="../../api/MagickCore/annotate_8c.html" id="GetTypeMetrics">GetTypeMetrics</a></h2>
<p>GetTypeMetrics() returns the following information for the specified font and text:</p>
<pre class="text">
character width
character height
ascender
descender
text width
text height
maximum horizontal advance
bounds: x1
bounds: y1
bounds: x2
bounds: y2
origin: x
origin: y
underline position
underline thickness
</pre>
<p>The format of the GetTypeMetrics method is:</p>
<pre class="text">
MagickBooleanType GetTypeMetrics(Image *image,const DrawInfo *draw_info,
TypeMetric *metrics,ExceptionInfo *exception)
</pre>
<p>A description of each parameter follows:</p>
<dd>
</dd>
<dd> </dd>
<dl class="dl-horizontal">
<dt>image</dt>
<dd>the image. </dd>
<dd> </dd>
<dt>draw_info</dt>
<dd>the draw info. </dd>
<dd> </dd>
<dt>metrics</dt>
<dd>Return the font metrics in this structure. </dd>
<dd> </dd>
<dt>exception</dt>
<dd>return any errors or warnings in this structure. </dd>
<dd> </dd>
</dl>
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