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12 <title>ImageMagick: MagickCore, C API for ImageMagick: Annotate an Image</title>
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164
165<div class="main">
166
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]167<p class="navigation-index">[<a href="#AnnotateImage">AnnotateImage</a> &bull; <a href="#FormatMagickCaption">FormatMagickCaption</a> &bull; <a href="#GetMultilineTypeMetrics">GetMultilineTypeMetrics</a> &bull; <a href="#GetTypeMetrics">GetTypeMetrics</a>]</p>
168
169<h2><a href="http://www.imagemagick.org/api/MagickCore/annotate
170_8c.html" target="source" name="AnnotateImage">AnnotateImage</a></h2>
171<div class="doc-section">
172
173<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>
174
175<pre class="text">
176 b file size in bytes.
177 c comment.
178 d directory in which the image resides.
179 e extension of the image file.
180 f original filename of the image.
181 h height of image.
182 i filename of the image.
183 k number of unique colors.
184 l image label.
185 m image file format.
186 n number of images in a image sequence.
187 o output image filename.
188 p page number of the image.
189 q image depth (8 or 16).
190 q image depth (8 or 16).
191 s image scene number.
192 t image filename without any extension.
193 u a unique temporary filename.
194 w image width.
195 x x resolution of the image.
196 y y resolution of the image.
197</pre>
198
199<p>The format of the AnnotateImage method is:</p>
200
201<pre class="code">
202 MagickBooleanType AnnotateImage(Image *image,DrawInfo *draw_info)
203</pre>
204
205<p>A description of each parameter follows:</p></ol>
206
207<h5>image</h5>
208<ol><p>the image.</p></ol>
209
210<h5>draw_info</h5>
211<ol><p>the draw info.</p></ol>
212
213 </div>
214<h2><a href="http://www.imagemagick.org/api/MagickCore/annotate
215_8c.html" target="source" name="FormatMagickCaption">FormatMagickCaption</a></h2>
216<div class="doc-section">
217
218<p>FormatMagickCaption() formats a caption so that it fits within the image width. It returns the number of lines in the formatted caption.</p></ol>
219
220<p>The format of the FormatMagickCaption method is:</p>
221
222<pre class="code">
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]223 ssize_t FormatMagickCaption(Image *image,DrawInfo *draw_info,
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]224 TypeMetric *metrics,char **caption)
225</pre>
226
227<p>A description of each parameter follows.</p></ol>
228
229<h5>image</h5>
230<ol><p>The image.</p></ol>
231
232<h5>caption</h5>
233<ol><p>the caption.</p></ol>
234
235<h5>draw_info</h5>
236<ol><p>the draw info.</p></ol>
237
238<h5>metrics</h5>
239<ol><p>Return the font metrics in this structure.</p></ol>
240
241 </div>
242<h2><a href="http://www.imagemagick.org/api/MagickCore/annotate
243_8c.html" target="source" name="GetMultilineTypeMetrics">GetMultilineTypeMetrics</a></h2>
244<div class="doc-section">
245
246<p>GetMultilineTypeMetrics() returns the following information for the specified font and text:</p>
247
248<pre class="text">
249 character width
250 character height
251 ascender
252 descender
253 text width
254 text height
255 maximum horizontal advance
256 bounds: x1
257 bounds: y1
258 bounds: x2
259 bounds: y2
260 origin: x
261 origin: y
262 underline position
263 underline thickness
264</pre>
265
266<p>This method is like GetTypeMetrics() but it returns the maximum text width and height for multiple lines of text.</p></ol>
267
268<p>The format of the GetMultilineTypeMetrics method is:</p>
269
270<pre class="code">
271 MagickBooleanType GetMultilineTypeMetrics(Image *image,
272 const DrawInfo *draw_info,TypeMetric *metrics)
273</pre>
274
275<p>A description of each parameter follows:</p></ol>
276
277<h5>image</h5>
278<ol><p>the image.</p></ol>
279
280<h5>draw_info</h5>
281<ol><p>the draw info.</p></ol>
282
283<h5>metrics</h5>
284<ol><p>Return the font metrics in this structure.</p></ol>
285
286 </div>
287<h2><a href="http://www.imagemagick.org/api/MagickCore/annotate
288_8c.html" target="source" name="GetTypeMetrics">GetTypeMetrics</a></h2>
289<div class="doc-section">
290
291<p>GetTypeMetrics() returns the following information for the specified font and text:</p>
292
293<pre class="text">
294 character width
295 character height
296 ascender
297 descender
298 text width
299 text height
300 maximum horizontal advance
301 bounds: x1
302 bounds: y1
303 bounds: x2
304 bounds: y2
305 origin: x
306 origin: y
307 underline position
308 underline thickness
309</pre>
310
311<p>The format of the GetTypeMetrics method is:</p>
312
313<pre class="code">
314 MagickBooleanType GetTypeMetrics(Image *image,const DrawInfo *draw_info,
315 TypeMetric *metrics)
316</pre>
317
318<p>A description of each parameter follows:</p></ol>
319
320<h5>image</h5>
321<ol><p>the image.</p></ol>
322
323<h5>draw_info</h5>
324<ol><p>the draw info.</p></ol>
325
326<h5>metrics</h5>
327<ol><p>Return the font metrics in this structure.</p></ol>
328
329 </div>
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