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cristy307ba182010-12-25 01:00:34 +0000[diff] [blame^]170<h1>Module exception
171 Methods</h1>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]172<p class="navigation-index">[<a href="#AcquireExceptionInfo">AcquireExceptionInfo</a> &bull; <a href="#ClearMagickException">ClearMagickException</a> &bull; <a href="#CatchException">CatchException</a> &bull; <a href="#DestroyExceptionInfo">DestroyExceptionInfo</a> &bull; <a href="#GetExceptionInfo">GetExceptionInfo</a> &bull; <a href="#GetExceptionMessage">GetExceptionMessage</a> &bull; <a href="#GetLocaleExceptionMessage">GetLocaleExceptionMessage</a> &bull; <a href="#InheritException">InheritException</a> &bull; <a href="#MagickError">MagickError</a> &bull; <a href="#MagickFatalError">MagickFatalError</a> &bull; <a href="#MagickWarning">MagickWarning</a> &bull; <a href="#SetErrorHandler">SetErrorHandler</a> &bull; <a href="#SetFatalErrorHandler">SetFatalErrorHandler</a> &bull; <a href="#SetWarningHandler">SetWarningHandler</a> &bull; <a href="#ThrowException">ThrowException</a>]</p>
173
174<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
175_8c.html" target="source" name="AcquireExceptionInfo">AcquireExceptionInfo</a></h2>
176<div class="doc-section">
177
178<p>AcquireExceptionInfo() allocates the ExceptionInfo structure.</p></ol>
179
180<p>The format of the AcquireExceptionInfo method is:</p>
181
182<pre class="code">
183 ExceptionInfo *AcquireExceptionInfo(void)
184</pre>
185
186 </div>
187<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
188_8c.html" target="source" name="ClearMagickException">ClearMagickException</a></h2>
189<div class="doc-section">
190
191<p>ClearMagickException() clears any exception that may not have been caught yet.</p></ol>
192
193<p>The format of the ClearMagickException method is:</p>
194
195<pre class="code">
196 ClearMagickException(ExceptionInfo *exception)
197</pre>
198
199<p>A description of each parameter follows:</p></ol>
200
201<h5>exception</h5>
202<ol><p>the exception info.</p></ol>
203
204 </div>
205<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
206_8c.html" target="source" name="CatchException">CatchException</a></h2>
207<div class="doc-section">
208
209<p>CatchException() returns if no exceptions is found otherwise it reports the exception as a warning, error, or fatal depending on the severity.</p></ol>
210
211<p>The format of the CatchException method is:</p>
212
213<pre class="code">
214 CatchException(ExceptionInfo *exception)
215</pre>
216
217<p>A description of each parameter follows:</p></ol>
218
219<h5>exception</h5>
220<ol><p>the exception info.</p></ol>
221
222 </div>
223<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
224_8c.html" target="source" name="DestroyExceptionInfo">DestroyExceptionInfo</a></h2>
225<div class="doc-section">
226
227<p>DestroyExceptionInfo() deallocates memory associated with an exception.</p></ol>
228
229<p>The format of the DestroyExceptionInfo method is:</p>
230
231<pre class="code">
232 ExceptionInfo *DestroyExceptionInfo(ExceptionInfo *exception)
233</pre>
234
235<p>A description of each parameter follows:</p></ol>
236
237<h5>exception</h5>
238<ol><p>the exception info.</p></ol>
239
240 </div>
241<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
242_8c.html" target="source" name="GetExceptionInfo">GetExceptionInfo</a></h2>
243<div class="doc-section">
244
245<p>GetExceptionInfo() initializes an exception to default values.</p></ol>
246
247<p>The format of the GetExceptionInfo method is:</p>
248
249<pre class="code">
250 GetExceptionInfo(ExceptionInfo *exception)
251</pre>
252
253<p>A description of each parameter follows:</p></ol>
254
255<h5>exception</h5>
256<ol><p>the exception info.</p></ol>
257
258 </div>
259<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
260_8c.html" target="source" name="GetExceptionMessage">GetExceptionMessage</a></h2>
261<div class="doc-section">
262
263<p>GetExceptionMessage() returns the error message defined by the specified error code.</p></ol>
264
265<p>The format of the GetExceptionMessage method is:</p>
266
267<pre class="code">
268 char *GetExceptionMessage(const int error)
269</pre>
270
271<p>A description of each parameter follows:</p></ol>
272
273<h5>error</h5>
274<ol><p>the error code.</p></ol>
275
276 </div>
277<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
278_8c.html" target="source" name="GetLocaleExceptionMessage">GetLocaleExceptionMessage</a></h2>
279<div class="doc-section">
280
281<p>GetLocaleExceptionMessage() converts a enumerated exception severity and tag to a message in the current locale.</p></ol>
282
283<p>The format of the GetLocaleExceptionMessage method is:</p>
284
285<pre class="code">
286 const char *GetLocaleExceptionMessage(const ExceptionType severity,
287 const char *tag)
288</pre>
289
290<p>A description of each parameter follows:</p></ol>
291
292<h5>severity</h5>
293<ol><p>the severity of the exception.</p></ol>
294
295<h5>tag</h5>
296<ol><p>the message tag.</p></ol>
297
298 </div>
299<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
300_8c.html" target="source" name="InheritException">InheritException</a></h2>
301<div class="doc-section">
302
303<p>InheritException() inherits an exception from a related exception.</p></ol>
304
305<p>The format of the InheritException method is:</p>
306
307<pre class="code">
308 InheritException(ExceptionInfo *exception,const ExceptionInfo *relative)
309</pre>
310
311<p>A description of each parameter follows:</p></ol>
312
313<h5>exception</h5>
314<ol><p>the exception info.</p></ol>
315
316<h5>relative</h5>
317<ol><p>the related exception info.</p></ol>
318
319 </div>
320<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
321_8c.html" target="source" name="MagickError">MagickError</a></h2>
322<div class="doc-section">
323
324<p>MagickError() calls the exception handler methods with an error reason.</p></ol>
325
326<p>The format of the MagickError method is:</p>
327
328<pre class="code">
329 void MagickError(const ExceptionType error,const char *reason,
330 const char *description)
331</pre>
332
333<p>A description of each parameter follows:</p></ol>
334
335<h5>exception</h5>
336<ol><p>Specifies the numeric error category.</p></ol>
337
338<h5>reason</h5>
339<ol><p>Specifies the reason to display before terminating the program.</p></ol>
340
341<h5>description</h5>
342<ol><p>Specifies any description to the reason.</p></ol>
343
344 </div>
345<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
346_8c.html" target="source" name="MagickFatalError">MagickFatalError</a></h2>
347<div class="doc-section">
348
349<p>MagickFatalError() calls the fatal exception handler methods with an error reason.</p></ol>
350
351<p>The format of the MagickError method is:</p>
352
353<pre class="code">
354 void MagickFatalError(const ExceptionType error,const char *reason,
355 const char *description)
356</pre>
357
358<p>A description of each parameter follows:</p></ol>
359
360<h5>exception</h5>
361<ol><p>Specifies the numeric error category.</p></ol>
362
363<h5>reason</h5>
364<ol><p>Specifies the reason to display before terminating the program.</p></ol>
365
366<h5>description</h5>
367<ol><p>Specifies any description to the reason.</p></ol>
368
369 </div>
370<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
371_8c.html" target="source" name="MagickWarning">MagickWarning</a></h2>
372<div class="doc-section">
373
374<p>MagickWarning() calls the warning handler methods with a warning reason.</p></ol>
375
376<p>The format of the MagickWarning method is:</p>
377
378<pre class="code">
379 void MagickWarning(const ExceptionType warning,const char *reason,
380 const char *description)
381</pre>
382
383<p>A description of each parameter follows:</p></ol>
384
385<h5>warning</h5>
386<ol><p>the warning severity.</p></ol>
387
388<h5>reason</h5>
389<ol><p>Define the reason for the warning.</p></ol>
390
391<h5>description</h5>
392<ol><p>Describe the warning.</p></ol>
393
394 </div>
395<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
396_8c.html" target="source" name="SetErrorHandler">SetErrorHandler</a></h2>
397<div class="doc-section">
398
399<p>SetErrorHandler() sets the exception handler to the specified method and returns the previous exception handler.</p></ol>
400
401<p>The format of the SetErrorHandler method is:</p>
402
403<pre class="code">
404 ErrorHandler SetErrorHandler(ErrorHandler handler)
405</pre>
406
407<p>A description of each parameter follows:</p></ol>
408
409<h5>handler</h5>
410<ol><p>the method to handle errors.</p></ol>
411
412 </div>
413<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
414_8c.html" target="source" name="SetFatalErrorHandler">SetFatalErrorHandler</a></h2>
415<div class="doc-section">
416
417<p>SetFatalErrorHandler() sets the fatal exception handler to the specified method and returns the previous fatal exception handler.</p></ol>
418
419<p>The format of the SetErrorHandler method is:</p>
420
421<pre class="code">
422 ErrorHandler SetErrorHandler(ErrorHandler handler)
423</pre>
424
425<p>A description of each parameter follows:</p></ol>
426
427<h5>handler</h5>
428<ol><p>the method to handle errors.</p></ol>
429
430 </div>
431<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
432_8c.html" target="source" name="SetWarningHandler">SetWarningHandler</a></h2>
433<div class="doc-section">
434
435<p>SetWarningHandler() sets the warning handler to the specified method and returns the previous warning handler.</p></ol>
436
437<p>The format of the SetWarningHandler method is:</p>
438
439<pre class="code">
440 ErrorHandler SetWarningHandler(ErrorHandler handler)
441</pre>
442
443<p>A description of each parameter follows:</p></ol>
444
445<h5>handler</h5>
446<ol><p>the method to handle warnings.</p></ol>
447
448 </div>
449<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
450_8c.html" target="source" name="ThrowException">ThrowException</a></h2>
451<div class="doc-section">
452
453<p>ThrowException() throws an exception with the specified severity code, reason, and optional description.</p></ol>
454
455<p>The format of the ThrowException method is:</p>
456
457<pre class="code">
458 MagickBooleanType ThrowException(ExceptionInfo *exception,
459 const ExceptionType severity,const char *reason,
460 const char *description)
461</pre>
462
463<p>A description of each parameter follows:</p></ol>
464
465<h5>exception</h5>
466<ol><p>the exception info.</p></ol>
467
468<h5>severity</h5>
469<ol><p>the severity of the exception.</p></ol>
470
471<h5>reason</h5>
472<ol><p>the reason for the exception.</p></ol>
473
474<h5>description</h5>
475<ol><p>the exception description.</p></ol>
476
477 </div>
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