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197<div class="main">
198
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]199<h1>Module exception Methods</h1>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]200<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]201
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]202<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]203<div class="doc-section">
204
205<p>AcquireExceptionInfo() allocates the ExceptionInfo structure.</p>
206
207<p>The format of the AcquireExceptionInfo method is:</p>
208
209<pre class="code">
210 ExceptionInfo *AcquireExceptionInfo(void)
211</pre>
212
213 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]214<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]215<div class="doc-section">
216
217<p>ClearMagickException() clears any exception that may not have been caught yet.</p>
218
219<p>The format of the ClearMagickException method is:</p>
220
221<pre class="code">
222 ClearMagickException(ExceptionInfo *exception)
223</pre>
224
225<p>A description of each parameter follows:</p>
226
227<h5>exception</h5>
228<p>the exception info.</p>
229
230 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]231<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]232<div class="doc-section">
233
234<p>CatchException() returns if no exceptions is found otherwise it reports the exception as a warning, error, or fatal depending on the severity.</p>
235
236<p>The format of the CatchException method is:</p>
237
238<pre class="code">
239 CatchException(ExceptionInfo *exception)
240</pre>
241
242<p>A description of each parameter follows:</p>
243
244<h5>exception</h5>
245<p>the exception info.</p>
246
247 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]248<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]249<div class="doc-section">
250
251<p>DestroyExceptionInfo() deallocates memory associated with an exception.</p>
252
253<p>The format of the DestroyExceptionInfo method is:</p>
254
255<pre class="code">
256 ExceptionInfo *DestroyExceptionInfo(ExceptionInfo *exception)
257</pre>
258
259<p>A description of each parameter follows:</p>
260
261<h5>exception</h5>
262<p>the exception info.</p>
263
264 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]265<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]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>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]282<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]283<div class="doc-section">
284
285<p>GetExceptionMessage() returns the error message defined by the specified error code.</p>
286
287<p>The format of the GetExceptionMessage method is:</p>
288
289<pre class="code">
290 char *GetExceptionMessage(const int error)
291</pre>
292
293<p>A description of each parameter follows:</p>
294
295<h5>error</h5>
296<p>the error code.</p>
297
298 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]299<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]300<div class="doc-section">
301
302<p>GetLocaleExceptionMessage() converts a enumerated exception severity and tag to a message in the current locale.</p>
303
304<p>The format of the GetLocaleExceptionMessage method is:</p>
305
306<pre class="code">
307 const char *GetLocaleExceptionMessage(const ExceptionType severity,
308 const char *tag)
309</pre>
310
311<p>A description of each parameter follows:</p>
312
313<h5>severity</h5>
314<p>the severity of the exception.</p>
315
316<h5>tag</h5>
317<p>the message tag.</p>
318
319 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]320<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]321<div class="doc-section">
322
323<p>InheritException() inherits an exception from a related exception.</p>
324
325<p>The format of the InheritException method is:</p>
326
327<pre class="code">
328 InheritException(ExceptionInfo *exception,const ExceptionInfo *relative)
329</pre>
330
331<p>A description of each parameter follows:</p>
332
333<h5>exception</h5>
334<p>the exception info.</p>
335
336<h5>relative</h5>
337<p>the related exception info.</p>
338
339 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]340<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]341<div class="doc-section">
342
343<p>MagickError() calls the exception handler methods with an error reason.</p>
344
345<p>The format of the MagickError method is:</p>
346
347<pre class="code">
348 void MagickError(const ExceptionType error,const char *reason,
349 const char *description)
350</pre>
351
352<p>A description of each parameter follows:</p>
353
354<h5>exception</h5>
355<p>Specifies the numeric error category.</p>
356
357<h5>reason</h5>
358<p>Specifies the reason to display before terminating the program.</p>
359
360<h5>description</h5>
361<p>Specifies any description to the reason.</p>
362
363 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]364<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]365<div class="doc-section">
366
367<p>MagickFatalError() calls the fatal exception handler methods with an error reason.</p>
368
369<p>The format of the MagickError method is:</p>
370
371<pre class="code">
372 void MagickFatalError(const ExceptionType error,const char *reason,
373 const char *description)
374</pre>
375
376<p>A description of each parameter follows:</p>
377
378<h5>exception</h5>
379<p>Specifies the numeric error category.</p>
380
381<h5>reason</h5>
382<p>Specifies the reason to display before terminating the program.</p>
383
384<h5>description</h5>
385<p>Specifies any description to the reason.</p>
386
387 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]388<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]389<div class="doc-section">
390
391<p>MagickWarning() calls the warning handler methods with a warning reason.</p>
392
393<p>The format of the MagickWarning method is:</p>
394
395<pre class="code">
396 void MagickWarning(const ExceptionType warning,const char *reason,
397 const char *description)
398</pre>
399
400<p>A description of each parameter follows:</p>
401
402<h5>warning</h5>
403<p>the warning severity.</p>
404
405<h5>reason</h5>
406<p>Define the reason for the warning.</p>
407
408<h5>description</h5>
409<p>Describe the warning.</p>
410
411 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]412<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]413<div class="doc-section">
414
415<p>SetErrorHandler() sets the exception handler to the specified method and returns the previous exception handler.</p>
416
417<p>The format of the SetErrorHandler method is:</p>
418
419<pre class="code">
420 ErrorHandler SetErrorHandler(ErrorHandler handler)
421</pre>
422
423<p>A description of each parameter follows:</p>
424
425<h5>handler</h5>
426<p>the method to handle errors.</p>
427
428 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]429<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]430<div class="doc-section">
431
432<p>SetFatalErrorHandler() sets the fatal exception handler to the specified method and returns the previous fatal exception handler.</p>
433
434<p>The format of the SetErrorHandler method is:</p>
435
436<pre class="code">
437 ErrorHandler SetErrorHandler(ErrorHandler handler)
438</pre>
439
440<p>A description of each parameter follows:</p>
441
442<h5>handler</h5>
443<p>the method to handle errors.</p>
444
445 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]446<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]447<div class="doc-section">
448
449<p>SetWarningHandler() sets the warning handler to the specified method and returns the previous warning handler.</p>
450
451<p>The format of the SetWarningHandler method is:</p>
452
453<pre class="code">
454 ErrorHandler SetWarningHandler(ErrorHandler handler)
455</pre>
456
457<p>A description of each parameter follows:</p>
458
459<h5>handler</h5>
460<p>the method to handle warnings.</p>
461
462 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]463<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]464<div class="doc-section">
465
466<p>ThrowException() throws an exception with the specified severity code, reason, and optional description.</p>
467
468<p>The format of the ThrowException method is:</p>
469
470<pre class="code">
471 MagickBooleanType ThrowException(ExceptionInfo *exception,
472 const ExceptionType severity,const char *reason,
473 const char *description)
474</pre>
475
476<p>A description of each parameter follows:</p>
477
478<h5>exception</h5>
479<p>the exception info.</p>
480
481<h5>severity</h5>
482<p>the severity of the exception.</p>
483
484<h5>reason</h5>
485<p>the reason for the exception.</p>
486
487<h5>description</h5>
488<p>the exception description.</p>
489
490 </div>
cristy3eaa0ef2010-03-06 20:35:26 +0000[diff] [blame]491
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