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195
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]196<h1>Module exception Methods</h1>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]197<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]198
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]199<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="AcquireExceptionInfo">AcquireExceptionInfo</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]200<div class="doc-section">
201
202<p>AcquireExceptionInfo() allocates the ExceptionInfo structure.</p>
203
204<p>The format of the AcquireExceptionInfo method is:</p>
205
206<pre class="code">
207 ExceptionInfo *AcquireExceptionInfo(void)
208</pre>
209
210 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]211<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="ClearMagickException">ClearMagickException</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]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>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]228<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="CatchException">CatchException</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]229<div class="doc-section">
230
231<p>CatchException() returns if no exceptions is found otherwise it reports the exception as a warning, error, or fatal depending on the severity.</p>
232
233<p>The format of the CatchException method is:</p>
234
235<pre class="code">
236 CatchException(ExceptionInfo *exception)
237</pre>
238
239<p>A description of each parameter follows:</p>
240
241<h5>exception</h5>
242<p>the exception info.</p>
243
244 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]245<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="DestroyExceptionInfo">DestroyExceptionInfo</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]246<div class="doc-section">
247
248<p>DestroyExceptionInfo() deallocates memory associated with an exception.</p>
249
250<p>The format of the DestroyExceptionInfo method is:</p>
251
252<pre class="code">
253 ExceptionInfo *DestroyExceptionInfo(ExceptionInfo *exception)
254</pre>
255
256<p>A description of each parameter follows:</p>
257
258<h5>exception</h5>
259<p>the exception info.</p>
260
261 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]262<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="GetExceptionInfo">GetExceptionInfo</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]263<div class="doc-section">
264
265<p>GetExceptionInfo() initializes an exception to default values.</p>
266
267<p>The format of the GetExceptionInfo method is:</p>
268
269<pre class="code">
270 GetExceptionInfo(ExceptionInfo *exception)
271</pre>
272
273<p>A description of each parameter follows:</p>
274
275<h5>exception</h5>
276<p>the exception info.</p>
277
278 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]279<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="GetExceptionMessage">GetExceptionMessage</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]280<div class="doc-section">
281
282<p>GetExceptionMessage() returns the error message defined by the specified error code.</p>
283
284<p>The format of the GetExceptionMessage method is:</p>
285
286<pre class="code">
287 char *GetExceptionMessage(const int error)
288</pre>
289
290<p>A description of each parameter follows:</p>
291
292<h5>error</h5>
293<p>the error code.</p>
294
295 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]296<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="GetLocaleExceptionMessage">GetLocaleExceptionMessage</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]297<div class="doc-section">
298
299<p>GetLocaleExceptionMessage() converts a enumerated exception severity and tag to a message in the current locale.</p>
300
301<p>The format of the GetLocaleExceptionMessage method is:</p>
302
303<pre class="code">
304 const char *GetLocaleExceptionMessage(const ExceptionType severity,
305 const char *tag)
306</pre>
307
308<p>A description of each parameter follows:</p>
309
310<h5>severity</h5>
311<p>the severity of the exception.</p>
312
313<h5>tag</h5>
314<p>the message tag.</p>
315
316 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]317<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="InheritException">InheritException</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]318<div class="doc-section">
319
320<p>InheritException() inherits an exception from a related exception.</p>
321
322<p>The format of the InheritException method is:</p>
323
324<pre class="code">
325 InheritException(ExceptionInfo *exception,const ExceptionInfo *relative)
326</pre>
327
328<p>A description of each parameter follows:</p>
329
330<h5>exception</h5>
331<p>the exception info.</p>
332
333<h5>relative</h5>
334<p>the related exception info.</p>
335
336 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]337<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="MagickError">MagickError</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]338<div class="doc-section">
339
340<p>MagickError() calls the exception handler methods with an error reason.</p>
341
342<p>The format of the MagickError method is:</p>
343
344<pre class="code">
345 void MagickError(const ExceptionType error,const char *reason,
346 const char *description)
347</pre>
348
349<p>A description of each parameter follows:</p>
350
351<h5>exception</h5>
352<p>Specifies the numeric error category.</p>
353
354<h5>reason</h5>
355<p>Specifies the reason to display before terminating the program.</p>
356
357<h5>description</h5>
358<p>Specifies any description to the reason.</p>
359
360 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]361<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="MagickFatalError">MagickFatalError</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]362<div class="doc-section">
363
364<p>MagickFatalError() calls the fatal exception handler methods with an error reason.</p>
365
366<p>The format of the MagickError method is:</p>
367
368<pre class="code">
369 void MagickFatalError(const ExceptionType error,const char *reason,
370 const char *description)
371</pre>
372
373<p>A description of each parameter follows:</p>
374
375<h5>exception</h5>
376<p>Specifies the numeric error category.</p>
377
378<h5>reason</h5>
379<p>Specifies the reason to display before terminating the program.</p>
380
381<h5>description</h5>
382<p>Specifies any description to the reason.</p>
383
384 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]385<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="MagickWarning">MagickWarning</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]386<div class="doc-section">
387
388<p>MagickWarning() calls the warning handler methods with a warning reason.</p>
389
390<p>The format of the MagickWarning method is:</p>
391
392<pre class="code">
393 void MagickWarning(const ExceptionType warning,const char *reason,
394 const char *description)
395</pre>
396
397<p>A description of each parameter follows:</p>
398
399<h5>warning</h5>
400<p>the warning severity.</p>
401
402<h5>reason</h5>
403<p>Define the reason for the warning.</p>
404
405<h5>description</h5>
406<p>Describe the warning.</p>
407
408 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]409<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="SetErrorHandler">SetErrorHandler</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]410<div class="doc-section">
411
412<p>SetErrorHandler() sets the exception handler to the specified method and returns the previous exception handler.</p>
413
414<p>The format of the SetErrorHandler method is:</p>
415
416<pre class="code">
417 ErrorHandler SetErrorHandler(ErrorHandler handler)
418</pre>
419
420<p>A description of each parameter follows:</p>
421
422<h5>handler</h5>
423<p>the method to handle errors.</p>
424
425 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]426<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="SetFatalErrorHandler">SetFatalErrorHandler</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]427<div class="doc-section">
428
429<p>SetFatalErrorHandler() sets the fatal exception handler to the specified method and returns the previous fatal exception handler.</p>
430
431<p>The format of the SetErrorHandler method is:</p>
432
433<pre class="code">
434 ErrorHandler SetErrorHandler(ErrorHandler handler)
435</pre>
436
437<p>A description of each parameter follows:</p>
438
439<h5>handler</h5>
440<p>the method to handle errors.</p>
441
442 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]443<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="SetWarningHandler">SetWarningHandler</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]444<div class="doc-section">
445
446<p>SetWarningHandler() sets the warning handler to the specified method and returns the previous warning handler.</p>
447
448<p>The format of the SetWarningHandler method is:</p>
449
450<pre class="code">
451 ErrorHandler SetWarningHandler(ErrorHandler handler)
452</pre>
453
454<p>A description of each parameter follows:</p>
455
456<h5>handler</h5>
457<p>the method to handle warnings.</p>
458
459 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]460<h2><a href="http://www.imagemagick.org/api/MagickCore/exception_8c.html" id="ThrowException">ThrowException</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]461<div class="doc-section">
462
463<p>ThrowException() throws an exception with the specified severity code, reason, and optional description.</p>
464
465<p>The format of the ThrowException method is:</p>
466
467<pre class="code">
468 MagickBooleanType ThrowException(ExceptionInfo *exception,
469 const ExceptionType severity,const char *reason,
470 const char *description)
471</pre>
472
473<p>A description of each parameter follows:</p>
474
475<h5>exception</h5>
476<p>the exception info.</p>
477
478<h5>severity</h5>
479<p>the severity of the exception.</p>
480
481<h5>reason</h5>
482<p>the reason for the exception.</p>
483
484<h5>description</h5>
485<p>the exception description.</p>
486
487 </div>
cristy3eaa0ef2010-03-06 20:35:26 +0000[diff] [blame]488
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