Skip to page contents

[ CloneImageAttributes | DeleteImageAttribute | DestroyImageAttributes | FormatImageAttribute | GetImageAttribute | GetImageClippingPathAttribute | GetNextImageAttribute | ResetImageAttributeIterator | SetImageAttribute | TracePSClipPath | TraceSVGClipPath ]

CloneImageAttributes() clones one or more image attributes.

The format of the CloneImageAttributes method is:

  MagickBooleanType CloneImageAttributes(Image *image,
    const Image *clone_image)

A description of each parameter follows:

image

The image.

clone_image

The clone image.

DeleteImageAttribute() deletes an attribute from the image.

The format of the DeleteImageAttribute method is:

  MagickBooleanType DeleteImageAttribute(Image *image,const char *key)

A description of each parameter follows:

image

The image info.

key

The image key.

DestroyImageAttributes() deallocates memory associated with the image attribute list.

The format of the DestroyImageAttributes method is:

  DestroyImageAttributes(Image *image)

A description of each parameter follows:

image

The image.

FormatImageAttribute() permits formatted key/value pairs to be saved as an image attribute.

The format of the FormatImageAttribute method is:

  MagickBooleanType FormatImageAttribute(Image *image,const char *key,
    const char *format,...)

A description of each parameter follows.

image

The image.

key

The attribute key.

format

A string describing the format to use to write the remaining arguments.

GetImageAttribute() searches the list of image attributes and returns a pointer to the attribute if it exists otherwise NULL.

The format of the GetImageAttribute method is:

  const ImageAttribute *GetImageAttribute(const Image *image,
    const char *key)

A description of each parameter follows:

image

The image.

key

These character strings are the name of an image attribute to return.

GetImageClippingPathAttribute() searches the list of image attributes and returns a pointer to a clipping path if it exists otherwise NULL.

The format of the GetImageClippingPathAttribute method is:

  const ImageAttribute *GetImageClippingPathAttribute(Image *image)

A description of each parameter follows:

attribute

Method GetImageClippingPathAttribute returns the clipping path if it exists otherwise NULL.

image

The image.

GetNextImageAttribute() gets the next image attribute.

The format of the GetNextImageAttribute method is:

  const ImageAttribute *GetNextImageAttribute(const Image *image)

A description of each parameter follows:

image

The image.

ResetImageAttributeIterator() resets the image attributes iterator. Use it in conjunction with GetNextImageAttribute() to iterate over all the values associated with an image.

The format of the ResetImageAttributeIterator method is:

  ResetImageAttributeIterator(const ImageInfo *image)

A description of each parameter follows:

image

The image.

SetImageAttribute() searches the list of image attributes and replaces the attribute value. If it is not found in the list, the attribute name and value is added to the list.

The format of the SetImageAttribute method is:

   MagickBooleanType SetImageAttribute(Image *image,const char *key,
     const char *value)

A description of each parameter follows:

image

The image.

key

The key.

value

The value.

TracePSClipPath() traces a clip path and returns it as Postscript.

The format of the TracePSClipPath method is:

  char *TracePSClipPath(unsigned char *blob,size_t length,
    const unsigned long columns,const unsigned long rows)

A description of each parameter follows:

blob

The blob.

length

The length of the blob.

columns

The image width.

rows

The image height.

TraceSVGClipPath() traces a clip path and returns it as SVG.

The format of the TraceSVGClipPath method is:

  char *TraceSVGClipPath(unsigned char *blob,size_t length,
    const unsigned long columns,const unsigned long rows)

A description of each parameter follows:

blob

The blob.

length

The length of the blob.

columns

The image width.

rows

The image height.