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<HTML>
<HEAD>
<TITLE>magick - Methods to Read or List ImageMagick Image formats</TITLE>
<LINK REV="made" HREF="mailto:magick@wizards.dupont.com">
</HEAD>
<body background="../../images/background.gif">
<!-- INDEX BEGIN -->
<UL>
<LI><A HREF="#NAME">NAME</A>
<LI><A HREF="#SYNOPSIS">SYNOPSIS</A>
<LI><A HREF="#FUNCTION_DESCRIPTIONS">FUNCTION DESCRIPTIONS</A>
<UL>
<LI><A HREF="#GetMagickInfo">GetMagickInfo</A>
<LI><A HREF="#ListMagickInfo">ListMagickInfo</A>
</UL>
</UL>
<!-- INDEX END -->
<HR>
<P>
<H1><A NAME="NAME">NAME</A></H1>
<P>
magick - Methods to Read or List ImageMagick Image formats
<P>
<HR>
<H1><A NAME="SYNOPSIS">SYNOPSIS</A></H1>
<P>
MagickInfo* <STRONG>GetMagickInfo</STRONG>(constchar*tag)
<P>
void <STRONG>ListMagickInfo</STRONG>(FILE*file)
<P>
<HR>
<H1><A NAME="FUNCTION_DESCRIPTIONS">FUNCTION DESCRIPTIONS</A></H1>
<P>
<HR>
<H2><A NAME="GetMagickInfo">GetMagickInfo</A></H2>
<P>
Method GetMagickInfo returns a pointer MagickInfo structure that matches the specified tag. If tag is
<FONT SIZE=-1>NULL,</FONT> the head of the image format list is returned.
<P>
The format of the GetMagickInfo method is:
<blockquote>MagickInfo *GetMagickInfo (const char *tag) </blockquote>
<P>
<FONT SIZE=-1>A</FONT> description of each parameter follows:
<DL><DL>
<DT><STRONG><A NAME="item_o">magick_info:</A></STRONG><DD>
<P>
Method GetMagickInfo returns a pointer MagickInfo structure that matches
the specified tag.
<DT><STRONG>tag:</STRONG><DD>
<P>
a character string that represents the image format we are looking for.
</DL></DL>
<P>
<HR>
<H2><A NAME="ListMagickInfo">ListMagickInfo</A></H2>
<P>
Method ListMagickInfo lists the image formats to a.
<P>
The format of the ListMagickInfo method is:
<blockquote>void ListMagickInfo (FILE *file) </blockquote>
<P>
<FONT SIZE=-1>A</FONT> description of each parameter follows.
<P>
<PRE> o: An pointer to a FILE.
=head2 RegisterMagickInfo
</PRE>
<P>
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
<FONT SIZE=-1>I/O,</FONT> and a brief description of the format.
<P>
The format of the RegisterMagickInfo method is:
<P>
<PRE> 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)
blob_support,description))
</PRE>
<P>
<FONT SIZE=-1>A</FONT> description of each parameter follows:
<DL><DL>
<DT><STRONG>magick_info:</STRONG><DD>
<P>
Method RegisterMagickInfo returns a pointer MagickInfo structure that
contains the specified tag info.
<DT><STRONG>tag:</STRONG><DD>
<P>
a character string that represents the image format we are looking for.
<DT><STRONG>decoder:</STRONG><DD>
<P>
a method that is used to read the image format.
<DT><STRONG>encoder:</STRONG><DD>
<P>
a method that is used to write the image format.
<DT><STRONG>magick:</STRONG><DD>
<P>
this method returns True if the image format signature matches a subset of
the first few bytes of the file or blob.
<DT><STRONG>adjoin:</STRONG><DD>
<P>
a value greater than 0 means the image format can save more than one frame
to the file or blob.
<DT><STRONG>blob_support:</STRONG><DD>
<P>
a value greater than 0 means the format supports native in-memory
<FONT SIZE=-1>I/O.</FONT>
<DT><STRONG>description:</STRONG><DD>
<P>
a character string that describes the image format.
</DL></DL>
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