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154 <p class="navigation-index">[<a href="#MagickClipPathImage">MagickClipPathImage</a> • <a href="#DrawGetFillAlpha">DrawGetFillAlpha</a> • <a href="#DrawGetStrokeAlpha">DrawGetStrokeAlpha</a> • <a href="#DrawPeekGraphicWand">DrawPeekGraphicWand</a> • <a href="#DrawPopGraphicContext">DrawPopGraphicContext</a> • <a href="#DrawPushGraphicContext">DrawPushGraphicContext</a> • <a href="#DrawSetFillAlpha">DrawSetFillAlpha</a> • <a href="#DrawSetStrokeAlpha">DrawSetStrokeAlpha</a> • <a href="#MagickColorFloodfillImage">MagickColorFloodfillImage</a> • <a href="#MagickDescribeImage">MagickDescribeImage</a> • <a href="#MagickFlattenImages">MagickFlattenImages</a> • <a href="#MagickGetImageAttribute">MagickGetImageAttribute</a> • <a href="#MagickGetImageMatte">MagickGetImageMatte</a> • <a href="#MagickGetImagePixels">MagickGetImagePixels</a> • <a href="#MagickGetImageSize">MagickGetImageSize</a> • <a href="#MagickMapImage">MagickMapImage</a> • <a href="#MagickMatteFloodfillImage">MagickMatteFloodfillImage</a> • <a href="#MagickMosaicImages">MagickMosaicImages</a> • <a href="#MagickOpaqueImage">MagickOpaqueImage</a> • <a href="#MagickPaintFloodfillImage">MagickPaintFloodfillImage</a> • <a href="#MagickPaintOpaqueImage">MagickPaintOpaqueImage</a> • <a href="#MagickPaintTransparentImage">MagickPaintTransparentImage</a> • <a href="#MagickSetImageAttribute">MagickSetImageAttribute</a> • <a href="#MagickSetImageIndex">MagickSetImageIndex</a> • <a href="#MagickTransparentImage">MagickTransparentImage</a> • <a href="#MagickRegionOfInterestImage">MagickRegionOfInterestImage</a> • <a href="#MagickSetImagePixels">MagickSetImagePixels</a> • <a href="#MagickWriteImageBlob">MagickWriteImageBlob</a> • <a href="#PixelGetNextRow">PixelGetNextRow</a> • <a href="#PixelIteratorGetException">PixelIteratorGetException</a>]</p>
156 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
157 _8c.html" target="source" name="MagickClipPathImage">MagickClipPathImage</a></h2>
158 <div class="doc-section">
160 <p>MagickClipPathImage() clips along the named paths from the 8BIM profile, if present. Later operations take effect inside the path. Id may be a number if preceded with #, to work on a numbered path, e.g., "#1" to use the first path.</p></ol>
162 <p>The format of the MagickClipPathImage method is:</p>
165 MagickBooleanType MagickClipPathImage(MagickWand *wand,
166 const char *pathname,const MagickBooleanType inside)
169 <p>A description of each parameter follows:</p></ol>
172 <ol><p>the magick wand.</p></ol>
175 <ol><p>name of clipping path resource. If name is preceded by #, use clipping path numbered by name.</p></ol>
178 <ol><p>if non-zero, later operations take effect inside clipping path. Otherwise later operations take effect outside clipping path.</p></ol>
181 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
182 _8c.html" target="source" name="DrawGetFillAlpha">DrawGetFillAlpha</a></h2>
183 <div class="doc-section">
185 <p>DrawGetFillAlpha() returns the alpha used when drawing using the fill color or fill texture. Fully opaque is 1.0.</p></ol>
187 <p>The format of the DrawGetFillAlpha method is:</p>
190 double DrawGetFillAlpha(const DrawingWand *wand)
193 <p>A description of each parameter follows:</p></ol>
196 <ol><p>the drawing wand.</p></ol>
199 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
200 _8c.html" target="source" name="DrawGetStrokeAlpha">DrawGetStrokeAlpha</a></h2>
201 <div class="doc-section">
203 <p>DrawGetStrokeAlpha() returns the alpha of stroked object outlines.</p></ol>
205 <p>The format of the DrawGetStrokeAlpha method is:</p>
208 double DrawGetStrokeAlpha(const DrawingWand *wand)
211 <p>A description of each parameter follows:</p></ol>
214 <ol><p>the drawing wand. </p>
216 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
217 _8c.html" target="source" name="DrawPeekGraphicWand">DrawPeekGraphicWand</a></h2>
218 <div class="doc-section">
220 <p>DrawPeekGraphicWand() returns the current drawing wand.</p></ol>
222 <p>The format of the PeekDrawingWand method is:</p>
225 DrawInfo *DrawPeekGraphicWand(const DrawingWand *wand)
228 <p>A description of each parameter follows:</p></ol>
231 <ol><p>the drawing wand.</p></ol>
234 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
235 _8c.html" target="source" name="DrawPopGraphicContext">DrawPopGraphicContext</a></h2>
236 <div class="doc-section">
238 <p>DrawPopGraphicContext() destroys the current drawing wand and returns to the previously pushed drawing wand. Multiple drawing wands may exist. It is an error to attempt to pop more drawing wands than have been pushed, and it is proper form to pop all drawing wands which have been pushed.</p></ol>
240 <p>The format of the DrawPopGraphicContext method is:</p>
243 MagickBooleanType DrawPopGraphicContext(DrawingWand *wand)
246 <p>A description of each parameter follows:</p></ol>
249 <ol><p>the drawing wand.</p></ol>
252 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
253 _8c.html" target="source" name="DrawPushGraphicContext">DrawPushGraphicContext</a></h2>
254 <div class="doc-section">
256 <p>DrawPushGraphicContext() clones the current drawing wand to create a new drawing wand. The original drawing wand(s) may be returned to by invoking PopDrawingWand(). The drawing wands are stored on a drawing wand stack. For every Pop there must have already been an equivalent Push.</p></ol>
258 <p>The format of the DrawPushGraphicContext method is:</p>
261 MagickBooleanType DrawPushGraphicContext(DrawingWand *wand)
264 <p>A description of each parameter follows:</p></ol>
267 <ol><p>the drawing wand.</p></ol>
270 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
271 _8c.html" target="source" name="DrawSetFillAlpha">DrawSetFillAlpha</a></h2>
272 <div class="doc-section">
274 <p>DrawSetFillAlpha() sets the alpha to use when drawing using the fill color or fill texture. Fully opaque is 1.0.</p></ol>
276 <p>The format of the DrawSetFillAlpha method is:</p>
279 void DrawSetFillAlpha(DrawingWand *wand,const double fill_alpha)
282 <p>A description of each parameter follows:</p></ol>
285 <ol><p>the drawing wand.</p></ol>
288 <ol><p>fill alpha</p></ol>
291 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
292 _8c.html" target="source" name="DrawSetStrokeAlpha">DrawSetStrokeAlpha</a></h2>
293 <div class="doc-section">
295 <p>DrawSetStrokeAlpha() specifies the alpha of stroked object outlines.</p></ol>
297 <p>The format of the DrawSetStrokeAlpha method is:</p>
300 void DrawSetStrokeAlpha(DrawingWand *wand,const double stroke_alpha)
303 <p>A description of each parameter follows:</p></ol>
306 <ol><p>the drawing wand.</p></ol>
308 <h5>stroke_alpha</h5>
309 <ol><p>stroke alpha. The value 1.0 is opaque.</p></ol>
312 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
313 _8c.html" target="source" name="MagickColorFloodfillImage">MagickColorFloodfillImage</a></h2>
314 <div class="doc-section">
316 <p>MagickColorFloodfillImage() changes the color value of any pixel that matches target and is an immediate neighbor. If the method FillToBorderMethod is specified, the color value is changed for any neighbor pixel that does not match the bordercolor member of image.</p></ol>
318 <p>The format of the MagickColorFloodfillImage method is:</p>
321 MagickBooleanType MagickColorFloodfillImage(MagickWand *wand,
322 const PixelWand *fill,const double fuzz,const PixelWand *bordercolor,
323 const long x,const long y)
326 <p>A description of each parameter follows:</p></ol>
329 <ol><p>the magick wand.</p></ol>
332 <ol><p>the floodfill color pixel wand.</p></ol>
335 <ol><p>By default target must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. The fuzz member of image defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color for the purposes of the floodfill.</p></ol>
338 <ol><p>the border color pixel wand.</p></ol>
341 <ol><p>the starting location of the operation.</p></ol>
344 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
345 _8c.html" target="source" name="MagickDescribeImage">MagickDescribeImage</a></h2>
346 <div class="doc-section">
348 <p>MagickDescribeImage() identifies an image by printing its attributes to the file. Attributes include the image width, height, size, and others.</p></ol>
350 <p>The format of the MagickDescribeImage method is:</p>
353 const char *MagickDescribeImage(MagickWand *wand)
356 <p>A description of each parameter follows:</p></ol>
359 <ol><p>the magick wand.</p></ol>
362 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
363 _8c.html" target="source" name="MagickFlattenImages">MagickFlattenImages</a></h2>
364 <div class="doc-section">
366 <p>MagickFlattenImages() merges a sequence of images. This useful for combining Photoshop layers into a single image.</p></ol>
368 <p>The format of the MagickFlattenImages method is:</p>
371 MagickWand *MagickFlattenImages(MagickWand *wand)
374 <p>A description of each parameter follows:</p></ol>
377 <ol><p>the magick wand.</p></ol>
380 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
381 _8c.html" target="source" name="MagickGetImageAttribute">MagickGetImageAttribute</a></h2>
382 <div class="doc-section">
384 <p>MagickGetImageAttribute() returns a value associated with the specified property. Use MagickRelinquishMemory() to free the value when you are finished with it.</p></ol>
386 <p>The format of the MagickGetImageAttribute method is:</p>
389 char *MagickGetImageAttribute(MagickWand *wand,const char *property)
392 <p>A description of each parameter follows:</p></ol>
395 <ol><p>the magick wand.</p></ol>
398 <ol><p>the property.</p></ol>
401 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
402 _8c.html" target="source" name="MagickGetImageMatte">MagickGetImageMatte</a></h2>
403 <div class="doc-section">
405 <p>MagickGetImageMatte() returns MagickTrue if the image has a matte channel otherwise MagickFalse.</p></ol>
407 <p>The format of the MagickGetImageMatte method is:</p>
410 unsigned long MagickGetImageMatte(MagickWand *wand)
413 <p>A description of each parameter follows:</p></ol>
416 <ol><p>the magick wand.</p></ol>
419 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
420 _8c.html" target="source" name="MagickGetImagePixels">MagickGetImagePixels</a></h2>
421 <div class="doc-section">
423 <p>MagickGetImagePixels() extracts pixel data from an image and returns it to you. The method returns MagickTrue on success otherwise MagickFalse if an error is encountered. The data is returned as char, short int, int, long, float, or double in the order specified by map.</p></ol>
425 <p>Suppose you want to extract the first scanline of a 640x480 image as character data in red-green-blue order:</p>
428 MagickGetImagePixels(wand,0,0,640,1,"RGB",CharPixel,pixels);
431 <p>The format of the MagickGetImagePixels method is:</p>
434 MagickBooleanType MagickGetImagePixels(MagickWand *wand,
435 const long x,const long y,const unsigned long columns,
436 const unsigned long rows,const char *map,const StorageType storage,
440 <p>A description of each parameter follows:</p></ol>
443 <ol><p>the magick wand.</p></ol>
445 <h5>x, y, columns, rows</h5>
446 <ol><p>These values define the perimeter of a region of pixels you want to extract.</p></ol>
449 <ol><p>This string reflects the expected ordering of the pixel array. It can be any combination or order of R = red, G = green, B = blue, A = alpha (0 is transparent), O = opacity (0 is opaque), C = cyan, Y = yellow, M = magenta, K = black, I = intensity (for grayscale), P = pad.</p></ol>
452 <ol><p>Define the data type of the pixels. Float and double types are expected to be normalized [0..1] otherwise [0..QuantumRange]. Choose from these types: CharPixel, DoublePixel, FloatPixel, IntegerPixel, LongPixel, QuantumPixel, or ShortPixel.</p></ol>
455 <ol><p>This array of values contain the pixel components as defined by map and type. You must preallocate this array where the expected length varies depending on the values of width, height, map, and type.</p></ol>
458 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
459 _8c.html" target="source" name="MagickGetImageSize">MagickGetImageSize</a></h2>
460 <div class="doc-section">
462 <p>MagickGetImageSize() returns the image length in bytes.</p></ol>
464 <p>The format of the MagickGetImageSize method is:</p>
467 MagickBooleanType MagickGetImageSize(MagickWand *wand,
468 MagickSizeType *length)
471 <p>A description of each parameter follows:</p></ol>
474 <ol><p>the magick wand.</p></ol>
477 <ol><p>the image length in bytes.</p></ol>
480 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
481 _8c.html" target="source" name="MagickMapImage">MagickMapImage</a></h2>
482 <div class="doc-section">
484 <p>MagickMapImage() replaces the colors of an image with the closest color from a reference image.</p></ol>
486 <p>The format of the MagickMapImage method is:</p>
489 MagickBooleanType MagickMapImage(MagickWand *wand,
490 const MagickWand *map_wand,const MagickBooleanType dither)
493 <p>A description of each parameter follows:</p></ol>
496 <ol><p>the magick wand.</p></ol>
499 <ol><p>the map wand.</p></ol>
502 <ol><p>Set this integer value to something other than zero to dither the mapped image.</p></ol>
505 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
506 _8c.html" target="source" name="MagickMatteFloodfillImage">MagickMatteFloodfillImage</a></h2>
507 <div class="doc-section">
509 <p>MagickMatteFloodfillImage() changes the transparency value of any pixel that matches target and is an immediate neighbor. If the method FillToBorderMethod is specified, the transparency value is changed for any neighbor pixel that does not match the bordercolor member of image.</p></ol>
511 <p>The format of the MagickMatteFloodfillImage method is:</p>
514 MagickBooleanType MagickMatteFloodfillImage(MagickWand *wand,
515 const double alpha,const double fuzz,const PixelWand *bordercolor,
516 const long x,const long y)
519 <p>A description of each parameter follows:</p></ol>
522 <ol><p>the magick wand.</p></ol>
525 <ol><p>the level of transparency: 1.0 is fully opaque and 0.0 is fully transparent.</p></ol>
528 <ol><p>By default target must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. The fuzz member of image defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color for the purposes of the floodfill.</p></ol>
531 <ol><p>the border color pixel wand.</p></ol>
534 <ol><p>the starting location of the operation.</p></ol>
537 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
538 _8c.html" target="source" name="MagickMosaicImages">MagickMosaicImages</a></h2>
539 <div class="doc-section">
541 <p>MagickMosaicImages() inlays an image sequence to form a single coherent picture. It returns a wand with each image in the sequence composited at the location defined by the page offset of the image.</p></ol>
543 <p>The format of the MagickMosaicImages method is:</p>
546 MagickWand *MagickMosaicImages(MagickWand *wand)
549 <p>A description of each parameter follows:</p></ol>
552 <ol><p>the magick wand.</p></ol>
555 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
556 _8c.html" target="source" name="MagickOpaqueImage">MagickOpaqueImage</a></h2>
557 <div class="doc-section">
559 <p>MagickOpaqueImage() changes any pixel that matches color with the color defined by fill.</p></ol>
561 <p>The format of the MagickOpaqueImage method is:</p>
564 MagickBooleanType MagickOpaqueImage(MagickWand *wand,
565 const PixelWand *target,const PixelWand *fill,const double fuzz)
568 <p>A description of each parameter follows:</p></ol>
571 <ol><p>the magick wand.</p></ol>
574 <ol><p>the channel(s).</p></ol>
577 <ol><p>Change this target color to the fill color within the image.</p></ol>
580 <ol><p>the fill pixel wand.</p></ol>
583 <ol><p>By default target must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. The fuzz member of image defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color for the purposes of the floodfill.</p></ol>
586 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
587 _8c.html" target="source" name="MagickPaintFloodfillImage">MagickPaintFloodfillImage</a></h2>
588 <div class="doc-section">
590 <p>MagickPaintFloodfillImage() changes the color value of any pixel that matches target and is an immediate neighbor. If the method FillToBorderMethod is specified, the color value is changed for any neighbor pixel that does not match the bordercolor member of image.</p></ol>
592 <p>The format of the MagickPaintFloodfillImage method is:</p>
595 MagickBooleanType MagickPaintFloodfillImage(MagickWand *wand,
596 const ChannelType channel,const PixelWand *fill,const double fuzz,
597 const PixelWand *bordercolor,const long x,const long y)
600 <p>A description of each parameter follows:</p></ol>
603 <ol><p>the magick wand.</p></ol>
606 <ol><p>the channel(s).</p></ol>
609 <ol><p>the floodfill color pixel wand.</p></ol>
612 <ol><p>By default target must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. The fuzz member of image defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color for the purposes of the floodfill.</p></ol>
615 <ol><p>the border color pixel wand.</p></ol>
618 <ol><p>the starting location of the operation.</p></ol>
621 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
622 _8c.html" target="source" name="MagickPaintOpaqueImage">MagickPaintOpaqueImage</a></h2>
623 <div class="doc-section">
625 <p>MagickPaintOpaqueImage() changes any pixel that matches color with the color defined by fill.</p></ol>
627 <p>The format of the MagickPaintOpaqueImage method is:</p>
630 MagickBooleanType MagickPaintOpaqueImage(MagickWand *wand,
631 const PixelWand *target,const PixelWand *fill,const double fuzz)
632 MagickBooleanType MagickPaintOpaqueImageChannel(MagickWand *wand,
633 const ChannelType channel,const PixelWand *target,
634 const PixelWand *fill,const double fuzz)
637 <p>A description of each parameter follows:</p></ol>
640 <ol><p>the magick wand.</p></ol>
643 <ol><p>the channel(s).</p></ol>
646 <ol><p>Change this target color to the fill color within the image.</p></ol>
649 <ol><p>the fill pixel wand.</p></ol>
652 <ol><p>By default target must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. The fuzz member of image defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color for the purposes of the floodfill.</p></ol>
655 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
656 _8c.html" target="source" name="MagickPaintTransparentImage">MagickPaintTransparentImage</a></h2>
657 <div class="doc-section">
659 <p>MagickPaintTransparentImage() changes any pixel that matches color with the color defined by fill.</p></ol>
661 <p>The format of the MagickPaintTransparentImage method is:</p>
664 MagickBooleanType MagickPaintTransparentImage(MagickWand *wand,
665 const PixelWand *target,const double alpha,const double fuzz)
668 <p>A description of each parameter follows:</p></ol>
671 <ol><p>the magick wand.</p></ol>
674 <ol><p>Change this target color to specified opacity value within the image.</p></ol>
677 <ol><p>the level of transparency: 1.0 is fully opaque and 0.0 is fully transparent.</p></ol>
680 <ol><p>By default target must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. The fuzz member of image defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color for the purposes of the floodfill.</p></ol>
683 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
684 _8c.html" target="source" name="MagickSetImageAttribute">MagickSetImageAttribute</a></h2>
685 <div class="doc-section">
687 <p>MagickSetImageAttribute() associates a property with an image.</p></ol>
689 <p>The format of the MagickSetImageAttribute method is:</p>
692 MagickBooleanType MagickSetImageAttribute(MagickWand *wand,
693 const char *property,const char *value)
696 <p>A description of each parameter follows:</p></ol>
699 <ol><p>the magick wand.</p></ol>
702 <ol><p>the property.</p></ol>
705 <ol><p>the value.</p></ol>
708 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
709 _8c.html" target="source" name="MagickSetImageIndex">MagickSetImageIndex</a></h2>
710 <div class="doc-section">
712 <p>MagickSetImageIndex() set the current image to the position of the list specified with the index parameter.</p></ol>
714 <p>The format of the MagickSetImageIndex method is:</p>
717 MagickBooleanType MagickSetImageIndex(MagickWand *wand,const long index)
720 <p>A description of each parameter follows:</p></ol>
723 <ol><p>the magick wand.</p></ol>
726 <ol><p>the scene number.</p></ol>
729 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
730 _8c.html" target="source" name="MagickTransparentImage">MagickTransparentImage</a></h2>
731 <div class="doc-section">
733 <p>MagickTransparentImage() changes any pixel that matches color with the color defined by fill.</p></ol>
735 <p>The format of the MagickTransparentImage method is:</p>
738 MagickBooleanType MagickTransparentImage(MagickWand *wand,
739 const PixelWand *target,const double alpha,const double fuzz)
742 <p>A description of each parameter follows:</p></ol>
745 <ol><p>the magick wand.</p></ol>
748 <ol><p>Change this target color to specified opacity value within the image.</p></ol>
751 <ol><p>the level of transparency: 1.0 is fully opaque and 0.0 is fully transparent.</p></ol>
754 <ol><p>By default target must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. The fuzz member of image defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color for the purposes of the floodfill.</p></ol>
757 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
758 _8c.html" target="source" name="MagickRegionOfInterestImage">MagickRegionOfInterestImage</a></h2>
759 <div class="doc-section">
761 <p>MagickRegionOfInterestImage() extracts a region of the image and returns it as a new wand.</p></ol>
763 <p>The format of the MagickRegionOfInterestImage method is:</p>
766 MagickWand *MagickRegionOfInterestImage(MagickWand *wand,
767 const unsigned long width,const unsigned long height,const long x,
771 <p>A description of each parameter follows:</p></ol>
774 <ol><p>the magick wand.</p></ol>
777 <ol><p>the region width.</p></ol>
780 <ol><p>the region height.</p></ol>
783 <ol><p>the region x offset.</p></ol>
786 <ol><p>the region y offset.</p></ol>
789 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
790 _8c.html" target="source" name="MagickSetImagePixels">MagickSetImagePixels</a></h2>
791 <div class="doc-section">
793 <p>MagickSetImagePixels() accepts pixel datand stores it in the image at the location you specify. The method returns MagickFalse on success otherwise MagickTrue if an error is encountered. The pixel data can be either char, short int, int, long, float, or double in the order specified by map.</p></ol>
795 <p>Suppose your want to upload the first scanline of a 640x480 image from character data in red-green-blue order:</p>
798 MagickSetImagePixels(wand,0,0,640,1,"RGB",CharPixel,pixels);
801 <p>The format of the MagickSetImagePixels method is:</p>
804 MagickBooleanType MagickSetImagePixels(MagickWand *wand,
805 const long x,const long y,const unsigned long columns,
806 const unsigned long rows,const char *map,const StorageType storage,
810 <p>A description of each parameter follows:</p></ol>
813 <ol><p>the magick wand.</p></ol>
815 <h5>x, y, columns, rows</h5>
816 <ol><p>These values define the perimeter of a region of pixels you want to define.</p></ol>
819 <ol><p>This string reflects the expected ordering of the pixel array. It can be any combination or order of R = red, G = green, B = blue, A = alpha (0 is transparent), O = opacity (0 is opaque), C = cyan, Y = yellow, M = magenta, K = black, I = intensity (for grayscale), P = pad.</p></ol>
822 <ol><p>Define the data type of the pixels. Float and double types are expected to be normalized [0..1] otherwise [0..QuantumRange]. Choose from these types: CharPixel, ShortPixel, IntegerPixel, LongPixel, FloatPixel, or DoublePixel.</p></ol>
825 <ol><p>This array of values contain the pixel components as defined by map and type. You must preallocate this array where the expected length varies depending on the values of width, height, map, and type.</p></ol>
828 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
829 _8c.html" target="source" name="MagickWriteImageBlob">MagickWriteImageBlob</a></h2>
830 <div class="doc-section">
832 <p>MagickWriteImageBlob() implements direct to memory image formats. It returns the image as a blob and its length. Use MagickSetFormat() to set the format of the returned blob (GIF, JPEG, PNG, etc.).</p></ol>
834 <p>Use MagickRelinquishMemory() to free the blob when you are done with it.</p></ol>
836 <p>The format of the MagickWriteImageBlob method is:</p>
839 unsigned char *MagickWriteImageBlob(MagickWand *wand,size_t *length)
842 <p>A description of each parameter follows:</p></ol>
845 <ol><p>the magick wand.</p></ol>
848 <ol><p>the length of the blob.</p></ol>
851 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
852 _8c.html" target="source" name="PixelGetNextRow">PixelGetNextRow</a></h2>
853 <div class="doc-section">
855 <p>PixelGetNextRow() returns the next row as an array of pixel wands from the pixel iterator.</p></ol>
857 <p>The format of the PixelGetNextRow method is:</p>
860 PixelWand **PixelGetNextRow(PixelIterator *iterator,
861 unsigned long *number_wands)
864 <p>A description of each parameter follows:</p></ol>
867 <ol><p>the pixel iterator.</p></ol>
869 <h5>number_wands</h5>
870 <ol><p>the number of pixel wands.</p></ol>
873 <h2><a href="http://www.imagemagick.org/api/MagickWand/deprecate
874 _8c.html" target="source" name="PixelIteratorGetException">PixelIteratorGetException</a></h2>
875 <div class="doc-section">
877 <p>PixelIteratorGetException() returns the severity, reason, and description of any error that occurs when using other methods in this API.</p></ol>
879 <p>The format of the PixelIteratorGetException method is:</p>
882 char *PixelIteratorGetException(const Pixeliterator *iterator,
883 ExceptionType *severity)
886 <p>A description of each parameter follows:</p></ol>
889 <ol><p>the pixel iterator.</p></ol>
892 <ol><p>the severity of the error is returned here.</p></ol>
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