magick - Methods to Read or List ImageMagick Image formats
MagickInfo * GetMagickInfo( const char *tag
);
void ListMagickInfo(
FILE *file
);
MagickInfo * RegisterMagickInfo( const char *tag, Image *(* decoder )( const ImageInfo *), unsigned
int(*
encoder )( const ImageInfo *, Image *), unsigned
int(*
magick )( const unsigned char *, const unsigned int ),
const unsigned int adjoin, const unsigned int blob_support, const char
*description
);
Method GetMagickInfo returns a pointer MagickInfo structure that matches the specified tag. If tag is NULL, the head of the image format list is returned.
The format of the GetMagickInfo method is:
MagickInfo *GetMagickInfo ( const char *tag );
A description of each parameter follows:
Method GetMagickInfo returns a pointer MagickInfo structure that matches the specified tag.
a character string that represents the image format we are looking for.
Method ListMagickInfo lists the image formats to a file.
The format of the ListMagickInfo method is:
void ListMagickInfo ( FILE *file );
A description of each parameter follows.
A pointer to a FILE structure.
Method RegisterMagickInfo adds attributes for a particular image format to the list of supported formats. The attributes include the image format tag, a method to read and/or write the format, whether the format supports the saving of more than one frame to the same file or blob, whether the format supports native in-memory I/O, and a brief description of the format.
The format of the RegisterMagickInfo method is:
MagickInfo *RegisterMagickInfo ( const char *tag, Image *( *decoder ) ( const ImageInfo *), unsigned int ( *encoder ) ( const ImageInfo *, Image *), unsigned int ( *magick ) ( const unsigned char *, const unsigned int ), const unsigned int adjoin, const unsigned int blob_support, const char *description );
A description of each parameter follows:
Method RegisterMagickInfo returns a pointer MagickInfo structure that contains the specified tag info.
a character string that represents the image format we are looking for.
a method that is used to read the image format.
a method that is used to write the image format.
this method returns True if the image format signature matches a subset of the first few bytes of the file or blob.
a value greater than 0 means the image format can save more than one frame to the file or blob.
a value greater than 0 means the format supports native in-memory I/O.
a character string that describes the image format.