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href="../index.html">Home</a> 47 <a class="magick-nav-item " href="../binary-releases.html">Download</a> 48 <a class="magick-nav-item " href="../command-line-tools.html">Tools</a> 49 <a class="magick-nav-item " href="../command-line-processing.html">Command-line</a> 50 <a class="magick-nav-item " href="../resources.html">Resources</a> 51 <a class="magick-nav-item " href="api.html">Develop</a> 52 <a class="magick-nav-item " href="http://www.imagemagick.org/script/search.php">Search</a> 53 <a class="magick-nav-item pull-right" href="https://www.imagemagick.org/discourse-server/">Community</a> 54 </nav> 55 </div> 56</div> 57<div class="container"> 58<div class="magick-header"> 59<p class="text-center"><a href="magick-wand.html#ClearMagickWand">ClearMagickWand</a> • <a href="magick-wand.html#CloneMagickWand">CloneMagickWand</a> • <a href="magick-wand.html#DestroyMagickWand">DestroyMagickWand</a> • <a href="magick-wand.html#IsMagickWand">IsMagickWand</a> • <a href="magick-wand.html#MagickClearException">MagickClearException</a> • <a href="magick-wand.html#MagickGetException">MagickGetException</a> • <a href="magick-wand.html#MagickGetExceptionType">MagickGetExceptionType</a> • <a href="magick-wand.html#MagickGetIteratorIndex">MagickGetIteratorIndex</a> • <a href="magick-wand.html#MagickQueryConfigureOption">MagickQueryConfigureOption</a> • <a href="magick-wand.html#MagickQueryConfigureOptions">MagickQueryConfigureOptions</a> • <a href="magick-wand.html#MagickQueryFontMetrics">MagickQueryFontMetrics</a> • <a href="magick-wand.html#MagickQueryMultilineFontMetrics">MagickQueryMultilineFontMetrics</a> • <a href="magick-wand.html#MagickQueryFonts">MagickQueryFonts</a> • <a href="magick-wand.html#MagickQueryFormats">MagickQueryFormats</a> • <a href="magick-wand.html#MagickRelinquishMemory">MagickRelinquishMemory</a> • <a href="magick-wand.html#MagickResetIterator">MagickResetIterator</a> • <a href="magick-wand.html#MagickSetFirstIterator">MagickSetFirstIterator</a> • <a href="magick-wand.html#MagickSetIteratorIndex">MagickSetIteratorIndex</a> • <a href="magick-wand.html#MagickSetLastIterator">MagickSetLastIterator</a> • <a href="magick-wand.html#MagickWandGenesis">MagickWandGenesis</a> • <a href="magick-wand.html#MagickWandTerminus">MagickWandTerminus</a> • <a href="magick-wand.html#NewMagickWand">NewMagickWand</a> • <a href="magick-wand.html#NewMagickWandFromImage">NewMagickWandFromImage</a> • <a href="magick-wand.html#IsMagickWandInstantiated">IsMagickWandInstantiated</a></p> 60 61<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="ClearMagickWand">ClearMagickWand</a></h2> 62 63<p>ClearMagickWand() clears resources associated with the wand, leaving the wand blank, and ready to be used for a new set of images.</p> 64 65<p>The format of the ClearMagickWand method is:</p> 66 67<pre class="text"> 68void ClearMagickWand(MagickWand *wand) 69</pre> 70 71<p>A description of each parameter follows:</p> 72 73<dd> 74</dd> 75 76<dd> </dd> 77<dl class="dl-horizontal"> 78<dt>wand</dt> 79<dd>the magick wand. </dd> 80 81<dd> </dd> 82</dl> 83<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="CloneMagickWand">CloneMagickWand</a></h2> 84 85<p>CloneMagickWand() makes an exact copy of the specified wand.</p> 86 87<p>The format of the CloneMagickWand method is:</p> 88 89<pre class="text"> 90MagickWand *CloneMagickWand(const MagickWand *wand) 91</pre> 92 93<p>A description of each parameter follows:</p> 94 95<dd> 96</dd> 97 98<dd> </dd> 99<dl class="dl-horizontal"> 100<dt>wand</dt> 101<dd>the magick wand. </dd> 102 103<dd> </dd> 104</dl> 105<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="DestroyMagickWand">DestroyMagickWand</a></h2> 106 107<p>DestroyMagickWand() deallocates memory associated with an MagickWand.</p> 108 109<p>The format of the DestroyMagickWand method is:</p> 110 111<pre class="text"> 112MagickWand *DestroyMagickWand(MagickWand *wand) 113</pre> 114 115<p>A description of each parameter follows:</p> 116 117<dd> 118</dd> 119 120<dd> </dd> 121<dl class="dl-horizontal"> 122<dt>wand</dt> 123<dd>the magick wand. </dd> 124 125<dd> </dd> 126</dl> 127<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="IsMagickWand">IsMagickWand</a></h2> 128 129<p>IsMagickWand() returns MagickTrue if the wand is verified as a magick wand.</p> 130 131<p>The format of the IsMagickWand method is:</p> 132 133<pre class="text"> 134MagickBooleanType IsMagickWand(const MagickWand *wand) 135</pre> 136 137<p>A description of each parameter follows:</p> 138 139<dd> 140</dd> 141 142<dd> </dd> 143<dl class="dl-horizontal"> 144<dt>wand</dt> 145<dd>the magick wand. </dd> 146 147<dd> </dd> 148</dl> 149<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickClearException">MagickClearException</a></h2> 150 151<p>MagickClearException() clears any exceptions associated with the wand.</p> 152 153<p>The format of the MagickClearException method is:</p> 154 155<pre class="text"> 156MagickBooleanType MagickClearException(MagickWand *wand) 157</pre> 158 159<p>A description of each parameter follows:</p> 160 161<dd> 162</dd> 163 164<dd> </dd> 165<dl class="dl-horizontal"> 166<dt>wand</dt> 167<dd>the magick wand. </dd> 168 169<dd> </dd> 170</dl> 171<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickGetException">MagickGetException</a></h2> 172 173<p>MagickGetException() returns the severity, reason, and description of any error that occurs when using other methods in this API.</p> 174 175<p>The format of the MagickGetException method is:</p> 176 177<pre class="text"> 178char *MagickGetException(const MagickWand *wand,ExceptionType *severity) 179</pre> 180 181<p>A description of each parameter follows:</p> 182 183<dd> 184</dd> 185 186<dd> </dd> 187<dl class="dl-horizontal"> 188<dt>wand</dt> 189<dd>the magick wand. </dd> 190 191<dd> </dd> 192<dt>severity</dt> 193<dd>the severity of the error is returned here. </dd> 194 195<dd> </dd> 196</dl> 197<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickGetExceptionType">MagickGetExceptionType</a></h2> 198 199<p>MagickGetExceptionType() returns the exception type associated with the wand. If no exception has occurred, UndefinedExceptionType is returned.</p> 200 201<p>The format of the MagickGetExceptionType method is:</p> 202 203<pre class="text"> 204ExceptionType MagickGetExceptionType(const MagickWand *wand) 205</pre> 206 207<p>A description of each parameter follows:</p> 208 209<dd> 210</dd> 211 212<dd> </dd> 213<dl class="dl-horizontal"> 214<dt>wand</dt> 215<dd>the magick wand. </dd> 216 217<dd> </dd> 218</dl> 219<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickGetIteratorIndex">MagickGetIteratorIndex</a></h2> 220 221<p>MagickGetIteratorIndex() returns the position of the iterator in the image list.</p> 222 223<p>The format of the MagickGetIteratorIndex method is:</p> 224 225<pre class="text"> 226ssize_t MagickGetIteratorIndex(MagickWand *wand) 227</pre> 228 229<p>A description of each parameter follows:</p> 230 231<dd> 232</dd> 233 234<dd> </dd> 235<dl class="dl-horizontal"> 236<dt>wand</dt> 237<dd>the magick wand. </dd> 238 239<dd> </dd> 240</dl> 241<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickQueryConfigureOption">MagickQueryConfigureOption</a></h2> 242 243<p>MagickQueryConfigureOption() returns the value associated with the specified configure option.</p> 244 245<p>The format of the MagickQueryConfigureOption function is:</p> 246 247<pre class="text"> 248char *MagickQueryConfigureOption(const char *option) 249</pre> 250 251<p>A description of each parameter follows:</p> 252 253<dd> 254</dd> 255 256<dd> </dd> 257<dl class="dl-horizontal"> 258<dt>option</dt> 259<dd>the option name. </dd> 260 261<dd> </dd> 262</dl> 263<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickQueryConfigureOptions">MagickQueryConfigureOptions</a></h2> 264 265<p>MagickQueryConfigureOptions() returns any configure options that match the specified pattern (e.g. "*" for all). Options include NAME, VERSION, LIB_VERSION, etc.</p> 266 267<p>The format of the MagickQueryConfigureOptions function is:</p> 268 269<pre class="text"> 270char **MagickQueryConfigureOptions(const char *pattern, 271 size_t *number_options) 272</pre> 273 274<p>A description of each parameter follows:</p> 275 276<dd> 277</dd> 278 279<dd> </dd> 280<dl class="dl-horizontal"> 281<dt>pattern</dt> 282<dd>Specifies a pointer to a text string containing a pattern. </dd> 283 284<dd> </dd> 285<dt>number_options</dt> 286<dd> Returns the number of configure options in the list. </dd> 287 288<dd> </dd> 289 290<dd> </dd> 291</dl> 292<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickQueryFontMetrics">MagickQueryFontMetrics</a></h2> 293 294<p>MagickQueryFontMetrics() returns a 13 element array representing the following font metrics:</p> 295 296<pre class="text"> 297 Element Description 298 ------------------------------------------------- 299 0 character width 300 1 character height 301 2 ascender 302 3 descender 303 4 text width 304 5 text height 305 6 maximum horizontal advance 306 7 bounding box: x1 307 8 bounding box: y1 308 9 bounding box: x2 309 10 bounding box: y2 310 11 origin: x 311 12 origin: y 312</pre> 313 314<p>The format of the MagickQueryFontMetrics method is:</p> 315 316<pre class="text"> 317double *MagickQueryFontMetrics(MagickWand *wand, 318 const DrawingWand *drawing_wand,const char *text) 319</pre> 320 321<p>A description of each parameter follows:</p> 322 323<dd> 324</dd> 325 326<dd> </dd> 327<dl class="dl-horizontal"> 328<dt>wand</dt> 329<dd>the Magick wand. </dd> 330 331<dd> </dd> 332<dt>drawing_wand</dt> 333<dd>the drawing wand. </dd> 334 335<dd> </dd> 336<dt>text</dt> 337<dd>the text. </dd> 338 339<dd> </dd> 340</dl> 341<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickQueryMultilineFontMetrics">MagickQueryMultilineFontMetrics</a></h2> 342 343<p>MagickQueryMultilineFontMetrics() returns a 13 element array representing the following font metrics:</p> 344 345<pre class="text"> 346 Element Description 347 ------------------------------------------------- 348 0 character width 349 1 character height 350 2 ascender 351 3 descender 352 4 text width 353 5 text height 354 6 maximum horizontal advance 355 7 bounding box: x1 356 8 bounding box: y1 357 9 bounding box: x2 358 10 bounding box: y2 359 11 origin: x 360 12 origin: y 361</pre> 362 363<p>This method is like MagickQueryFontMetrics() but it returns the maximum text width and height for multiple lines of text.</p> 364 365<p>The format of the MagickQueryFontMetrics method is:</p> 366 367<pre class="text"> 368double *MagickQueryMultilineFontMetrics(MagickWand *wand, 369 const DrawingWand *drawing_wand,const char *text) 370</pre> 371 372<p>A description of each parameter follows:</p> 373 374<dd> 375</dd> 376 377<dd> </dd> 378<dl class="dl-horizontal"> 379<dt>wand</dt> 380<dd>the Magick wand. </dd> 381 382<dd> </dd> 383<dt>drawing_wand</dt> 384<dd>the drawing wand. </dd> 385 386<dd> </dd> 387<dt>text</dt> 388<dd>the text. </dd> 389 390<dd> </dd> 391</dl> 392<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickQueryFonts">MagickQueryFonts</a></h2> 393 394<p>MagickQueryFonts() returns any font that match the specified pattern (e.g. "*" for all).</p> 395 396<p>The format of the MagickQueryFonts function is:</p> 397 398<pre class="text"> 399char **MagickQueryFonts(const char *pattern,size_t *number_fonts) 400</pre> 401 402<p>A description of each parameter follows:</p> 403 404<dd> 405</dd> 406 407<dd> </dd> 408<dl class="dl-horizontal"> 409<dt>pattern</dt> 410<dd>Specifies a pointer to a text string containing a pattern. </dd> 411 412<dd> </dd> 413<dt>number_fonts</dt> 414<dd> Returns the number of fonts in the list. </dd> 415 416<dd> </dd> 417 418<dd> </dd> 419</dl> 420<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickQueryFormats">MagickQueryFormats</a></h2> 421 422<p>MagickQueryFormats() returns any image formats that match the specified pattern (e.g. "*" for all).</p> 423 424<p>The format of the MagickQueryFormats function is:</p> 425 426<pre class="text"> 427char **MagickQueryFormats(const char *pattern,size_t *number_formats) 428</pre> 429 430<p>A description of each parameter follows:</p> 431 432<dd> 433</dd> 434 435<dd> </dd> 436<dl class="dl-horizontal"> 437<dt>pattern</dt> 438<dd>Specifies a pointer to a text string containing a pattern. </dd> 439 440<dd> </dd> 441<dt>number_formats</dt> 442<dd> This integer returns the number of image formats in the list. </dd> 443 444<dd> </dd> 445</dl> 446<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickRelinquishMemory">MagickRelinquishMemory</a></h2> 447 448<p>MagickRelinquishMemory() relinquishes memory resources returned by such methods as MagickIdentifyImage(), MagickGetException(), etc.</p> 449 450<p>The format of the MagickRelinquishMemory method is:</p> 451 452<pre class="text"> 453void *MagickRelinquishMemory(void *resource) 454</pre> 455 456<p>A description of each parameter follows:</p> 457 458<dd> 459</dd> 460 461<dd> </dd> 462<dl class="dl-horizontal"> 463<dt>resource</dt> 464<dd>Relinquish the memory associated with this resource. </dd> 465 466<dd> </dd> 467</dl> 468<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickResetIterator">MagickResetIterator</a></h2> 469 470<p>MagickResetIterator() resets the wand iterator.</p> 471 472<p>It is typically used either before iterating though images, or before calling specific functions such as MagickAppendImages() to append all images together.</p> 473 474<p>Afterward you can use MagickNextImage() to iterate over all the images in a wand container, starting with the first image.</p> 475 476<p>Using this before MagickAddImages() or MagickReadImages() will cause new images to be inserted between the first and second image.</p> 477 478<p>The format of the MagickResetIterator method is:</p> 479 480<pre class="text"> 481void MagickResetIterator(MagickWand *wand) 482</pre> 483 484<p>A description of each parameter follows:</p> 485 486<dd> 487</dd> 488 489<dd> </dd> 490<dl class="dl-horizontal"> 491<dt>wand</dt> 492<dd>the magick wand. </dd> 493 494<dd> </dd> 495</dl> 496<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickSetFirstIterator">MagickSetFirstIterator</a></h2> 497 498<p>MagickSetFirstIterator() sets the wand iterator to the first image.</p> 499 500<p>After using any images added to the wand using MagickAddImage() or MagickReadImage() will be prepended before any image in the wand.</p> 501 502<p>Also the current image has been set to the first image (if any) in the Magick Wand. Using MagickNextImage() will then set teh current image to the second image in the list (if present).</p> 503 504<p>This operation is similar to MagickResetIterator() but differs in how MagickAddImage(), MagickReadImage(), and MagickNextImage() behaves afterward.</p> 505 506<p>The format of the MagickSetFirstIterator method is:</p> 507 508<pre class="text"> 509void MagickSetFirstIterator(MagickWand *wand) 510</pre> 511 512<p>A description of each parameter follows:</p> 513 514<dd> 515</dd> 516 517<dd> </dd> 518<dl class="dl-horizontal"> 519<dt>wand</dt> 520<dd>the magick wand. </dd> 521 522<dd> </dd> 523</dl> 524<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickSetIteratorIndex">MagickSetIteratorIndex</a></h2> 525 526<p>MagickSetIteratorIndex() set the iterator to the given position in the image list specified with the index parameter. A zero index will set the first image as current, and so on. Negative indexes can be used to specify an image relative to the end of the images in the wand, with -1 being the last image in the wand.</p> 527 528<p>If the index is invalid (range too large for number of images in wand) the function will return MagickFalse, but no 'exception' will be raised, as it is not actually an error. In that case the current image will not change.</p> 529 530<p>After using any images added to the wand using MagickAddImage() or MagickReadImage() will be added after the image indexed, regardless of if a zero (first image in list) or negative index (from end) is used.</p> 531 532<p>Jumping to index 0 is similar to MagickResetIterator() but differs in how MagickNextImage() behaves afterward.</p> 533 534<p>The format of the MagickSetIteratorIndex method is:</p> 535 536<pre class="text"> 537MagickBooleanType MagickSetIteratorIndex(MagickWand *wand, 538 const ssize_t index) 539</pre> 540 541<p>A description of each parameter follows:</p> 542 543<dd> 544</dd> 545 546<dd> </dd> 547<dl class="dl-horizontal"> 548<dt>wand</dt> 549<dd>the magick wand. </dd> 550 551<dd> </dd> 552<dt>index</dt> 553<dd>the scene number. </dd> 554 555<dd> </dd> 556</dl> 557<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickSetLastIterator">MagickSetLastIterator</a></h2> 558 559<p>MagickSetLastIterator() sets the wand iterator to the last image.</p> 560 561<p>The last image is actually the current image, and the next use of MagickPreviousImage() will not change this allowing this function to be used to iterate over the images in the reverse direction. In this sense it is more like MagickResetIterator() than MagickSetFirstIterator().</p> 562 563<p>Typically this function is used before MagickAddImage(), MagickReadImage() functions to ensure new images are appended to the very end of wand's image list.</p> 564 565<p>The format of the MagickSetLastIterator method is:</p> 566 567<pre class="text"> 568void MagickSetLastIterator(MagickWand *wand) 569</pre> 570 571<p>A description of each parameter follows:</p> 572 573<dd> 574</dd> 575 576<dd> </dd> 577<dl class="dl-horizontal"> 578<dt>wand</dt> 579<dd>the magick wand. </dd> 580 581<dd> </dd> 582</dl> 583<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickWandGenesis">MagickWandGenesis</a></h2> 584 585<p>MagickWandGenesis() initializes the MagickWand environment.</p> 586 587<p>The format of the MagickWandGenesis method is:</p> 588 589<pre class="text"> 590void MagickWandGenesis(void) 591</pre> 592 593<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="MagickWandTerminus">MagickWandTerminus</a></h2> 594 595<p>MagickWandTerminus() terminates the MagickWand environment.</p> 596 597<p>The format of the MaickWandTerminus method is:</p> 598 599<pre class="text"> 600void MagickWandTerminus(void) 601</pre> 602 603<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="NewMagickWand">NewMagickWand</a></h2> 604 605<p>NewMagickWand() returns a wand required for all other methods in the API. A fatal exception is thrown if there is not enough memory to allocate the wand. Use DestroyMagickWand() to dispose of the wand when it is no longer needed.</p> 606 607<p>The format of the NewMagickWand method is:</p> 608 609<pre class="text"> 610MagickWand *NewMagickWand(void) 611</pre> 612 613<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="NewMagickWandFromImage">NewMagickWandFromImage</a></h2> 614 615<p>NewMagickWandFromImage() returns a wand with an image.</p> 616 617<p>The format of the NewMagickWandFromImage method is:</p> 618 619<pre class="text"> 620MagickWand *NewMagickWandFromImage(const Image *image) 621</pre> 622 623<p>A description of each parameter follows:</p> 624 625<dd> 626</dd> 627 628<dd> </dd> 629<dl class="dl-horizontal"> 630<dt>image</dt> 631<dd>the image. </dd> 632 633<dd> </dd> 634</dl> 635<h2><a href="http://www.imagemagick.org/api/MagickWand/magick-wand_8c.html" id="IsMagickWandInstantiated">IsMagickWandInstantiated</a></h2> 636 637<p>IsMagickWandInstantiated() returns MagickTrue if the ImageMagick environment is currently instantiated-- that is, MagickWandGenesis() has been called but MagickWandTerminus() has not.</p> 638 639<p>The format of the IsMagickWandInstantiated method is:</p> 640 641<pre class="text"> 642MagickBooleanType IsMagickWandInstantiated(void) 643</pre> 644 645</div> 646 <footer class="magick-footer"> 647 <p><a href="../support.html">Donate</a> • 648 <a href="../sitemap.html">Sitemap</a> • 649 <a href="../links.html">Related</a> • 650 <a href="../architecture.html">Architecture</a> 651</p> 652 <p><a href="magick-wand.html#">Back to top</a> • 653 <a href="http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x89AB63D48277377A">Public Key</a> • 654 <a href="http://www.imagemagick.org/script/contact.php">Contact Us</a></p> 655 <p><small>© 1999-2016 ImageMagick Studio LLC</small></p> 656 </footer> 657</div><!-- /.container --> 658 659 <script src="https://localhost/ajax/libs/jquery/1.11.3/jquery.min.js"></script> 660 <script src="../js/magick.html"></script> 661</div> 662</body> 663</html> 664
