# ImageMagick: MagickCore, C API for ImageMagick: The Pixel FIFO
ImageMagick® is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (about 100) including GIF, JPEG, JPEG-2000, PNG, PDF, PhotoCD, TIFF, and DPX. Use ImageMagick to translate, flip, mirror, rotate, scale, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves. ImageMagick is free software delivered as a ready-to-run binary distribution or as source code that you can freely use, copy, modify, and distribute. Its license is compatible with the [cut: 1167 characters, first 599 kept]
Author: ImageMagick Studio LLC
Keywords: magickcore, c, api, for, imagemagick:, the, pixel, fifo, ImageMagick, ImageMagic, MagickCore, MagickWand, PerlMagick, Magick++, RMagick, PythonMagick, JMagick, TclMagick, Image, Magick, Magic, Wand

## ReadStream

ReadStream() makes the image pixels available to a user supplied callback method immediately upon reading a scanline with the ReadImage() method.

The format of the ReadStream() method is:

      Image *ReadStream(const ImageInfo *image_info,StreamHandler stream,
        ExceptionInfo *exception)

A description of each parameter follows:

##### image_info

The image info.

##### stream

a callback method.

##### exception

Return any errors or warnings in this structure.

## WriteStream

WriteStream() makes the image pixels available to a user supplied callback method immediately upon writing pixel data with the WriteImage() method.

The format of the WriteStream() method is:

      MagickBooleanType WriteStream(const ImageInfo *image_info,Image *,
        StreamHandler stream)

A description of each parameter follows:

##### image_info

The image info.

##### stream

A callback method.

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