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<!DOCTYPE html> <html lang="en"> <head> <meta name="google-site-verification" content="_bMOCDpkx9ZAzBwb2kF3PRHbfUUdFj2uO8Jd1AXArz4" /> <title>ImageMagick: MagickCore, C API for ImageMagick: Get/Set Image Properties</title> <meta http-equiv="content-type" content="text/html; charset=utf-8"/> <meta name="application-name" content="ImageMagick"/> <meta name="description" content="ImageMagick® is a software suite to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, JPEG-2000, GIF, WebP, Postscript, PDF, and SVG. 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It is equivelent to SetImageProperty()</p> <p>The format of the DefineImageProperty method is:</p> <pre class="text"> MagickBooleanType DefineImageProperty(Image *image,const char *property, ExceptionInfo *exception) </pre> <p>A description of each parameter follows:</p> <dd> </dd> <dd> </dd> <dl class="dl-horizontal"> <dt>image</dt> <dd>the image. </dd> <dd> </dd> <dt>property</dt> <dd>the image property. </dd> <dd> </dd> <dt>exception</dt> <dd>return any errors or warnings in this structure. </dd> <dd> </dd> </dl> <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/property_8c.html" id="DeleteImageProperty">DeleteImageProperty</a></h2> <p>DeleteImageProperty() deletes an image property.</p> <p>The format of the DeleteImageProperty method is:</p> <pre class="text"> MagickBooleanType DeleteImageProperty(Image *image,const char *property) </pre> <p>A description of each parameter follows:</p> <dd> </dd> <dd> </dd> <dl class="dl-horizontal"> <dt>image</dt> <dd>the image. </dd> <dd> </dd> <dt>property</dt> <dd>the image property. </dd> <dd> </dd> </dl> <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/property_8c.html" id="DestroyImageProperties">DestroyImageProperties</a></h2> <p>DestroyImageProperties() destroys all properties and associated memory attached to the given image.</p> <p>The format of the DestroyDefines method is:</p> <pre class="text"> void DestroyImageProperties(Image *image) </pre> <p>A description of each parameter follows:</p> <dd> </dd> <dd> </dd> <dl class="dl-horizontal"> <dt>image</dt> <dd>the image. </dd> <dd> </dd> </dl> <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/property_8c.html" id="FormatImageProperty">FormatImageProperty</a></h2> <p>FormatImageProperty() permits formatted property/value pairs to be saved as an image property.</p> <p>The format of the FormatImageProperty method is:</p> <pre class="text"> MagickBooleanType FormatImageProperty(Image *image,const char *property, const char *format,...) </pre> <p>A description of each parameter follows.</p> <dt> image</dt> <p>The image.</p> <dt> property</dt> <p>The attribute property.</p> <dt> format</dt> <p>A string describing the format to use to write the remaining arguments.</p> <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/property_8c.html" id="GetImageProperty">GetImageProperty</a></h2> <p>GetImageProperty() gets a value associated with an image property.</p> <p>This includes, profile prefixes, such as "exif:", "iptc:" and "8bim:" It does not handle non-prifile prefixes, such as "fx:", "option:", or "artifact:".</p> <p>The returned string is stored as a properity of the same name for faster lookup later. It should NOT be freed by the caller.</p> <p>The format of the GetImageProperty method is:</p> <pre class="text"> const char *GetImageProperty(const Image *image,const char *key, ExceptionInfo *exception) </pre> <p>A description of each parameter follows:</p> <dd> </dd> <dd> </dd> <dl class="dl-horizontal"> <dt>image</dt> <dd>the image. </dd> <dd> </dd> <dt>key</dt> <dd>the key. </dd> <dd> </dd> <dt>exception</dt> <dd>return any errors or warnings in this structure. </dd> <dd> </dd> </dl> <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/property_8c.html" id="GetNextImageProperty">GetNextImageProperty</a></h2> <p>GetNextImageProperty() gets the next free-form string property name.</p> <p>The format of the GetNextImageProperty method is:</p> <pre class="text"> char *GetNextImageProperty(const Image *image) </pre> <p>A description of each parameter follows:</p> <dd> </dd> <dd> </dd> <dl class="dl-horizontal"> <dt>image</dt> <dd>the image. </dd> <dd> </dd> </dl> <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/property_8c.html" id="InterpretImageProperties">InterpretImageProperties</a></h2> <p>InterpretImageProperties() replaces any embedded formatting characters with the appropriate image property and returns the interpreted text.</p> <p>This searches for and replaces \n \r \ replaced by newline, return, and percent resp. &lt; &gt; &amp; replaced by '<', '>', '&' resp. replaced by percent</p> <p>x [x] where 'x' is a single letter properity, case sensitive). [type:name] where 'type' a is special and known prefix. [name] where 'name' is a specifically known attribute, calculated value, or a per-image property string name, or a per-image 'artifact' (as generated from a global option). It may contain ':' as long as the prefix is not special.</p> <p>Single letter substitutions will only happen if the character before the percent is NOT a number. But braced substitutions will always be performed. This prevents the typical usage of percent in a interpreted geometry argument from being substituted when the percent is a geometry flag.</p> <p>If 'glob-expresions' ('*' or '?' characters) is used for 'name' it may be used as a search pattern to print multiple lines of "name=value\n" pairs of the associacted set of properties.</p> <p>The returned string must be freed using DestoryString() by the caller.</p> <p>The format of the InterpretImageProperties method is:</p> <pre class="text"> char *InterpretImageProperties(ImageInfo *image_info, Image *image,const char *embed_text,ExceptionInfo *exception) </pre> <p>A description of each parameter follows:</p> <dd> </dd> <dd> </dd> <dl class="dl-horizontal"> <dt>image_info</dt> <dd>the image info. (required) </dd> <dd> </dd> <dt>image</dt> <dd>the image. (optional) </dd> <dd> </dd> <dt>embed_text</dt> <dd>the address of a character string containing the embedded formatting characters. </dd> <dd> </dd> <dt>exception</dt> <dd>return any errors or warnings in this structure. </dd> <dd> </dd> </dl> <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/property_8c.html" id="(void)_LogMagickEvent(TraceEvent,GetMagickModule">(void) LogMagickEvent(TraceEvent,GetMagickModule</a></h2> <p>(void) LogMagickEvent(TraceEvent,GetMagickModule(),"s",image->filename); else if( image_info != (ImageInfo *) NULL && IfMagickTrue(image_info->debug)) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"s","no-image");</p> <p>if (embed_text == (const char *) NULL) return(ConstantString("")); p=embed_text;</p> <p>if (*p == '\0') return(ConstantString(""));</p> <p>if ((*p == '@') && (IsPathAccessible(p+1) != MagickFalse)) { /* handle a '@' replace string from file */ interpret_text=FileToString(p+1,~0UL,exception); if (interpret_text != (char *) NULL) return(interpret_text); }</p> <p>/* Translate any embedded format characters. </p> <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/property_8c.html" id="RemoveImageProperty">RemoveImageProperty</a></h2> <p>RemoveImageProperty() removes a property from the image and returns its value.</p> <p>In this case the ConstantString() value returned should be freed by the caller when finished.</p> <p>The format of the RemoveImageProperty method is:</p> <pre class="text"> char *RemoveImageProperty(Image *image,const char *property) </pre> <p>A description of each parameter follows:</p> <dd> </dd> <dd> </dd> <dl class="dl-horizontal"> <dt>image</dt> <dd>the image. </dd> <dd> </dd> <dt>property</dt> <dd>the image property. </dd> <dd> </dd> </dl> <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/property_8c.html" id="ResetImagePropertyIterator">ResetImagePropertyIterator</a></h2> <p>ResetImagePropertyIterator() resets the image properties iterator. Use it in conjunction with GetNextImageProperty() to iterate over all the values associated with an image property.</p> <p>The format of the ResetImagePropertyIterator method is:</p> <pre class="text"> ResetImagePropertyIterator(Image *image) </pre> <p>A description of each parameter follows:</p> <dd> </dd> <dd> </dd> <dl class="dl-horizontal"> <dt>image</dt> <dd>the image. </dd> <dd> </dd> </dl> <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/property_8c.html" id="SetImageProperty">SetImageProperty</a></h2> <p>SetImageProperty() saves the given string value either to specific known attribute or to a freeform property string.</p> <p>Attempting to set a property that is normally calculated will produce an exception.</p> <p>The format of the SetImageProperty method is:</p> <pre class="text"> MagickBooleanType SetImageProperty(Image *image,const char *property, const char *value,ExceptionInfo *exception) </pre> <p>A description of each parameter follows:</p> <dd> </dd> <dd> </dd> <dl class="dl-horizontal"> <dt>image</dt> <dd>the image. </dd> <dd> </dd> <dt>property</dt> <dd>the image property. </dd> <dd> </dd> <dt>values</dt> <dd>the image property values. </dd> <dd> </dd> <dt>exception</dt> <dd>return any errors or warnings in this structure. </dd> <dd> </dd> </dl> </div> <footer class="magick-footer"> <p><a href="../script/support.php">Donate</a> • <a href="../script/sitemap.php">Sitemap</a> • <a href="../script/links.php">Related</a> • <a href="../script/architecture.php">Architecture</a> </p> <p><a href="property.php#">Back to top</a> • <a href="http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x89AB63D48277377A">Public Key</a> • <a href="../script/contact.php">Contact Us</a></p> <p><small>© 1999-2016 ImageMagick Studio LLC</small></p> </footer> </div><!-- /.container --> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script> <script src="http://nextgen.imagemagick.org/js/magick.php"></script> </div> </body> </html>