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12 <title>ImageMagick: MagickCore, C API for ImageMagick: Read or Write Binary Large OBjects</title>
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158 <p class="navigation-index">[<a href="#BlobToImage">BlobToImage</a> • <a href="#FileToImage">FileToImage</a> • <a href="#GetBlobProperties">GetBlobProperties</a> • <a href="#ImageToBlob">ImageToBlob</a> • <a href="#ImageToFile">ImageToFile</a> • <a href="#ImagesToBlob">ImagesToBlob</a> • <a href="#InjectImageBlob">InjectImageBlob</a>]</p>
160 <h2><a href="http://www.imagemagick.org/api/MagickCore/blob
161 _8c.html" target="source" name="BlobToImage">BlobToImage</a></h2>
162 <div class="doc-section">
164 <p>BlobToImage() implements direct to memory image formats. It returns the blob as an image.</p></ol>
166 <p>The format of the BlobToImage method is:</p>
169 Image *BlobToImage(const ImageInfo *image_info,const void *blob,
170 const size_t length,ExceptionInfo *exception)
173 <p>A description of each parameter follows:</p></ol>
176 <ol><p>the image info.</p></ol>
179 <ol><p>the address of a character stream in one of the image formats understood by ImageMagick.</p></ol>
182 <ol><p>This size_t integer reflects the length in bytes of the blob.</p></ol>
185 <ol><p>return any errors or warnings in this structure.</p></ol>
188 <h2><a href="http://www.imagemagick.org/api/MagickCore/blob
189 _8c.html" target="source" name="FileToImage">FileToImage</a></h2>
190 <div class="doc-section">
192 <p>FileToImage() write the contents of a file to an image.</p></ol>
194 <p>The format of the FileToImage method is:</p>
197 MagickBooleanType FileToImage(Image *,const char *filename)
200 <p>A description of each parameter follows:</p></ol>
203 <ol><p>the image.</p></ol>
206 <ol><p>the filename.</p></ol>
209 <h2><a href="http://www.imagemagick.org/api/MagickCore/blob
210 _8c.html" target="source" name="GetBlobProperties">GetBlobProperties</a></h2>
211 <div class="doc-section">
213 <p>GetBlobProperties() returns information about an image blob.</p></ol>
215 <p>The format of the GetBlobProperties method is:</p>
218 const struct stat *GetBlobProperties(const Image *image)
221 <p>A description of each parameter follows:</p></ol>
224 <ol><p>the image.</p></ol>
227 <h2><a href="http://www.imagemagick.org/api/MagickCore/blob
228 _8c.html" target="source" name="ImageToBlob">ImageToBlob</a></h2>
229 <div class="doc-section">
231 <p>ImageToBlob() implements direct to memory image formats. It returns the image as a blob and its length. The magick member of the ImageInfo structure determines the format of the returned blob (GIF, JPEG, PNG, etc.)</p></ol>
233 <p>The format of the ImageToBlob method is:</p>
236 unsigned char *ImageToBlob(const ImageInfo *image_info,Image *image,
237 size_t *length,ExceptionInfo *exception)
240 <p>A description of each parameter follows:</p></ol>
243 <ol><p>the image info.</p></ol>
246 <ol><p>the image.</p></ol>
249 <ol><p>This pointer to a size_t integer sets the initial length of the blob. On return, it reflects the actual length of the blob.</p></ol>
252 <ol><p>return any errors or warnings in this structure.</p></ol>
255 <h2><a href="http://www.imagemagick.org/api/MagickCore/blob
256 _8c.html" target="source" name="ImageToFile">ImageToFile</a></h2>
257 <div class="doc-section">
259 <p>ImageToFile() writes an image to a file. It returns MagickFalse if an error occurs otherwise MagickTrue.</p></ol>
261 <p>The format of the ImageToFile method is:</p>
264 MagickBooleanType ImageToFile(Image *image,char *filename,
265 ExceptionInfo *exception)
268 <p>A description of each parameter follows:</p></ol>
271 <ol><p>the image.</p></ol>
274 <ol><p>Write the image to this file.</p></ol>
277 <ol><p>return any errors or warnings in this structure.</p></ol>
280 <h2><a href="http://www.imagemagick.org/api/MagickCore/blob
281 _8c.html" target="source" name="ImagesToBlob">ImagesToBlob</a></h2>
282 <div class="doc-section">
284 <p>ImagesToBlob() implements direct to memory image formats. It returns the image sequence as a blob and its length. The magick member of the ImageInfo structure determines the format of the returned blob (GIF, JPEG, PNG, etc.)</p></ol>
286 <p>Note, some image formats do not permit multiple images to the same image stream (e.g. JPEG). in this instance, just the first image of the sequence is returned as a blob.</p></ol>
288 <p>The format of the ImagesToBlob method is:</p>
291 unsigned char *ImagesToBlob(const ImageInfo *image_info,Image *images,
292 size_t *length,ExceptionInfo *exception)
295 <p>A description of each parameter follows:</p></ol>
298 <ol><p>the image info.</p></ol>
301 <ol><p>the image list.</p></ol>
304 <ol><p>This pointer to a size_t integer sets the initial length of the blob. On return, it reflects the actual length of the blob.</p></ol>
307 <ol><p>return any errors or warnings in this structure.</p></ol>
310 <h2><a href="http://www.imagemagick.org/api/MagickCore/blob
311 _8c.html" target="source" name="InjectImageBlob">InjectImageBlob</a></h2>
312 <div class="doc-section">
314 <p>InjectImageBlob() injects the image with a copy of itself in the specified format (e.g. inject JPEG into a PDF image).</p></ol>
316 <p>The format of the InjectImageBlob method is:</p>
319 MagickBooleanType InjectImageBlob(const ImageInfo *image_info,
320 Image *image,Image *inject_image,const char *format,
321 ExceptionInfo *exception)
324 <p>A description of each parameter follows:</p></ol>
327 <ol><p>the image info..</p></ol>
330 <ol><p>the image.</p></ol>
332 <h5>inject_image</h5>
333 <ol><p>inject into the image stream.</p></ol>
336 <ol><p>the image format.</p></ol>
339 <ol><p>return any errors or warnings in this structure.</p></ol>
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