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12 <title>ImageMagick: MagickCore, C API for ImageMagick: Annotate an Image</title>
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162
163<div class="main">
164
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]165<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>
166
167<h2><a href="http://www.imagemagick.org/api/MagickCore/annotate
168_8c.html" target="source" name="AnnotateImage">AnnotateImage</a></h2>
169<div class="doc-section">
170
171<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>
172
173<pre class="text">
174 b file size in bytes.
175 c comment.
176 d directory in which the image resides.
177 e extension of the image file.
178 f original filename of the image.
179 h height of image.
180 i filename of the image.
181 k number of unique colors.
182 l image label.
183 m image file format.
184 n number of images in a image sequence.
185 o output image filename.
186 p page number of the image.
187 q image depth (8 or 16).
188 q image depth (8 or 16).
189 s image scene number.
190 t image filename without any extension.
191 u a unique temporary filename.
192 w image width.
193 x x resolution of the image.
194 y y resolution of the image.
195</pre>
196
197<p>The format of the AnnotateImage method is:</p>
198
199<pre class="code">
200 MagickBooleanType AnnotateImage(Image *image,DrawInfo *draw_info)
201</pre>
202
203<p>A description of each parameter follows:</p></ol>
204
205<h5>image</h5>
206<ol><p>the image.</p></ol>
207
208<h5>draw_info</h5>
209<ol><p>the draw info.</p></ol>
210
211 </div>
212<h2><a href="http://www.imagemagick.org/api/MagickCore/annotate
213_8c.html" target="source" name="FormatMagickCaption">FormatMagickCaption</a></h2>
214<div class="doc-section">
215
216<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>
217
218<p>The format of the FormatMagickCaption method is:</p>
219
220<pre class="code">
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]221 ssize_t FormatMagickCaption(Image *image,DrawInfo *draw_info,
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]222 TypeMetric *metrics,char **caption)
223</pre>
224
225<p>A description of each parameter follows.</p></ol>
226
227<h5>image</h5>
228<ol><p>The image.</p></ol>
229
230<h5>caption</h5>
231<ol><p>the caption.</p></ol>
232
233<h5>draw_info</h5>
234<ol><p>the draw info.</p></ol>
235
236<h5>metrics</h5>
237<ol><p>Return the font metrics in this structure.</p></ol>
238
239 </div>
240<h2><a href="http://www.imagemagick.org/api/MagickCore/annotate
241_8c.html" target="source" name="GetMultilineTypeMetrics">GetMultilineTypeMetrics</a></h2>
242<div class="doc-section">
243
244<p>GetMultilineTypeMetrics() returns the following information for the specified font and text:</p>
245
246<pre class="text">
247 character width
248 character height
249 ascender
250 descender
251 text width
252 text height
253 maximum horizontal advance
254 bounds: x1
255 bounds: y1
256 bounds: x2
257 bounds: y2
258 origin: x
259 origin: y
260 underline position
261 underline thickness
262</pre>
263
264<p>This method is like GetTypeMetrics() but it returns the maximum text width and height for multiple lines of text.</p></ol>
265
266<p>The format of the GetMultilineTypeMetrics method is:</p>
267
268<pre class="code">
269 MagickBooleanType GetMultilineTypeMetrics(Image *image,
270 const DrawInfo *draw_info,TypeMetric *metrics)
271</pre>
272
273<p>A description of each parameter follows:</p></ol>
274
275<h5>image</h5>
276<ol><p>the image.</p></ol>
277
278<h5>draw_info</h5>
279<ol><p>the draw info.</p></ol>
280
281<h5>metrics</h5>
282<ol><p>Return the font metrics in this structure.</p></ol>
283
284 </div>
285<h2><a href="http://www.imagemagick.org/api/MagickCore/annotate
286_8c.html" target="source" name="GetTypeMetrics">GetTypeMetrics</a></h2>
287<div class="doc-section">
288
289<p>GetTypeMetrics() returns the following information for the specified font and text:</p>
290
291<pre class="text">
292 character width
293 character height
294 ascender
295 descender
296 text width
297 text height
298 maximum horizontal advance
299 bounds: x1
300 bounds: y1
301 bounds: x2
302 bounds: y2
303 origin: x
304 origin: y
305 underline position
306 underline thickness
307</pre>
308
309<p>The format of the GetTypeMetrics method is:</p>
310
311<pre class="code">
312 MagickBooleanType GetTypeMetrics(Image *image,const DrawInfo *draw_info,
313 TypeMetric *metrics)
314</pre>
315
316<p>A description of each parameter follows:</p></ol>
317
318<h5>image</h5>
319<ol><p>the image.</p></ol>
320
321<h5>draw_info</h5>
322<ol><p>the draw info.</p></ol>
323
324<h5>metrics</h5>
325<ol><p>Return the font metrics in this structure.</p></ol>
326
327 </div>
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