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191<div class="main">
192
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame^]193<h1>Module exception
194 Methods</h1>
195<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>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]196
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame^]197<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
198_8c.html" id="AcquireExceptionInfo">AcquireExceptionInfo</a></h2>
199<div class="doc-section">
200
201<p>AcquireExceptionInfo() allocates the ExceptionInfo structure.</p>
202
203<p>The format of the AcquireExceptionInfo method is:</p>
204
205<pre class="code">
206 ExceptionInfo *AcquireExceptionInfo(void)
207</pre>
208
209 </div>
210<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
211_8c.html" id="ClearMagickException">ClearMagickException</a></h2>
212<div class="doc-section">
213
214<p>ClearMagickException() clears any exception that may not have been caught yet.</p>
215
216<p>The format of the ClearMagickException method is:</p>
217
218<pre class="code">
219 ClearMagickException(ExceptionInfo *exception)
220</pre>
221
222<p>A description of each parameter follows:</p>
223
224<h5>exception</h5>
225<p>the exception info.</p>
226
227 </div>
228<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
229_8c.html" id="CatchException">CatchException</a></h2>
230<div class="doc-section">
231
232<p>CatchException() returns if no exceptions is found otherwise it reports the exception as a warning, error, or fatal depending on the severity.</p>
233
234<p>The format of the CatchException method is:</p>
235
236<pre class="code">
237 CatchException(ExceptionInfo *exception)
238</pre>
239
240<p>A description of each parameter follows:</p>
241
242<h5>exception</h5>
243<p>the exception info.</p>
244
245 </div>
246<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
247_8c.html" id="DestroyExceptionInfo">DestroyExceptionInfo</a></h2>
248<div class="doc-section">
249
250<p>DestroyExceptionInfo() deallocates memory associated with an exception.</p>
251
252<p>The format of the DestroyExceptionInfo method is:</p>
253
254<pre class="code">
255 ExceptionInfo *DestroyExceptionInfo(ExceptionInfo *exception)
256</pre>
257
258<p>A description of each parameter follows:</p>
259
260<h5>exception</h5>
261<p>the exception info.</p>
262
263 </div>
264<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
265_8c.html" id="GetExceptionInfo">GetExceptionInfo</a></h2>
266<div class="doc-section">
267
268<p>GetExceptionInfo() initializes an exception to default values.</p>
269
270<p>The format of the GetExceptionInfo method is:</p>
271
272<pre class="code">
273 GetExceptionInfo(ExceptionInfo *exception)
274</pre>
275
276<p>A description of each parameter follows:</p>
277
278<h5>exception</h5>
279<p>the exception info.</p>
280
281 </div>
282<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
283_8c.html" id="GetExceptionMessage">GetExceptionMessage</a></h2>
284<div class="doc-section">
285
286<p>GetExceptionMessage() returns the error message defined by the specified error code.</p>
287
288<p>The format of the GetExceptionMessage method is:</p>
289
290<pre class="code">
291 char *GetExceptionMessage(const int error)
292</pre>
293
294<p>A description of each parameter follows:</p>
295
296<h5>error</h5>
297<p>the error code.</p>
298
299 </div>
300<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
301_8c.html" id="GetLocaleExceptionMessage">GetLocaleExceptionMessage</a></h2>
302<div class="doc-section">
303
304<p>GetLocaleExceptionMessage() converts a enumerated exception severity and tag to a message in the current locale.</p>
305
306<p>The format of the GetLocaleExceptionMessage method is:</p>
307
308<pre class="code">
309 const char *GetLocaleExceptionMessage(const ExceptionType severity,
310 const char *tag)
311</pre>
312
313<p>A description of each parameter follows:</p>
314
315<h5>severity</h5>
316<p>the severity of the exception.</p>
317
318<h5>tag</h5>
319<p>the message tag.</p>
320
321 </div>
322<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
323_8c.html" id="InheritException">InheritException</a></h2>
324<div class="doc-section">
325
326<p>InheritException() inherits an exception from a related exception.</p>
327
328<p>The format of the InheritException method is:</p>
329
330<pre class="code">
331 InheritException(ExceptionInfo *exception,const ExceptionInfo *relative)
332</pre>
333
334<p>A description of each parameter follows:</p>
335
336<h5>exception</h5>
337<p>the exception info.</p>
338
339<h5>relative</h5>
340<p>the related exception info.</p>
341
342 </div>
343<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
344_8c.html" id="MagickError">MagickError</a></h2>
345<div class="doc-section">
346
347<p>MagickError() calls the exception handler methods with an error reason.</p>
348
349<p>The format of the MagickError method is:</p>
350
351<pre class="code">
352 void MagickError(const ExceptionType error,const char *reason,
353 const char *description)
354</pre>
355
356<p>A description of each parameter follows:</p>
357
358<h5>exception</h5>
359<p>Specifies the numeric error category.</p>
360
361<h5>reason</h5>
362<p>Specifies the reason to display before terminating the program.</p>
363
364<h5>description</h5>
365<p>Specifies any description to the reason.</p>
366
367 </div>
368<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
369_8c.html" id="MagickFatalError">MagickFatalError</a></h2>
370<div class="doc-section">
371
372<p>MagickFatalError() calls the fatal exception handler methods with an error reason.</p>
373
374<p>The format of the MagickError method is:</p>
375
376<pre class="code">
377 void MagickFatalError(const ExceptionType error,const char *reason,
378 const char *description)
379</pre>
380
381<p>A description of each parameter follows:</p>
382
383<h5>exception</h5>
384<p>Specifies the numeric error category.</p>
385
386<h5>reason</h5>
387<p>Specifies the reason to display before terminating the program.</p>
388
389<h5>description</h5>
390<p>Specifies any description to the reason.</p>
391
392 </div>
393<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
394_8c.html" id="MagickWarning">MagickWarning</a></h2>
395<div class="doc-section">
396
397<p>MagickWarning() calls the warning handler methods with a warning reason.</p>
398
399<p>The format of the MagickWarning method is:</p>
400
401<pre class="code">
402 void MagickWarning(const ExceptionType warning,const char *reason,
403 const char *description)
404</pre>
405
406<p>A description of each parameter follows:</p>
407
408<h5>warning</h5>
409<p>the warning severity.</p>
410
411<h5>reason</h5>
412<p>Define the reason for the warning.</p>
413
414<h5>description</h5>
415<p>Describe the warning.</p>
416
417 </div>
418<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
419_8c.html" id="SetErrorHandler">SetErrorHandler</a></h2>
420<div class="doc-section">
421
422<p>SetErrorHandler() sets the exception handler to the specified method and returns the previous exception handler.</p>
423
424<p>The format of the SetErrorHandler method is:</p>
425
426<pre class="code">
427 ErrorHandler SetErrorHandler(ErrorHandler handler)
428</pre>
429
430<p>A description of each parameter follows:</p>
431
432<h5>handler</h5>
433<p>the method to handle errors.</p>
434
435 </div>
436<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
437_8c.html" id="SetFatalErrorHandler">SetFatalErrorHandler</a></h2>
438<div class="doc-section">
439
440<p>SetFatalErrorHandler() sets the fatal exception handler to the specified method and returns the previous fatal exception handler.</p>
441
442<p>The format of the SetErrorHandler method is:</p>
443
444<pre class="code">
445 ErrorHandler SetErrorHandler(ErrorHandler handler)
446</pre>
447
448<p>A description of each parameter follows:</p>
449
450<h5>handler</h5>
451<p>the method to handle errors.</p>
452
453 </div>
454<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
455_8c.html" id="SetWarningHandler">SetWarningHandler</a></h2>
456<div class="doc-section">
457
458<p>SetWarningHandler() sets the warning handler to the specified method and returns the previous warning handler.</p>
459
460<p>The format of the SetWarningHandler method is:</p>
461
462<pre class="code">
463 ErrorHandler SetWarningHandler(ErrorHandler handler)
464</pre>
465
466<p>A description of each parameter follows:</p>
467
468<h5>handler</h5>
469<p>the method to handle warnings.</p>
470
471 </div>
472<h2><a href="http://www.imagemagick.org/api/MagickCore/exception
473_8c.html" id="ThrowException">ThrowException</a></h2>
474<div class="doc-section">
475
476<p>ThrowException() throws an exception with the specified severity code, reason, and optional description.</p>
477
478<p>The format of the ThrowException method is:</p>
479
480<pre class="code">
481 MagickBooleanType ThrowException(ExceptionInfo *exception,
482 const ExceptionType severity,const char *reason,
483 const char *description)
484</pre>
485
486<p>A description of each parameter follows:</p>
487
488<h5>exception</h5>
489<p>the exception info.</p>
490
491<h5>severity</h5>
492<p>the severity of the exception.</p>
493
494<h5>reason</h5>
495<p>the reason for the exception.</p>
496
497<h5>description</h5>
498<p>the exception description.</p>
499
500 </div>
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