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MagickCore, C API: The Pixel FIFO

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StreamImageCommand

StreamImageCommand() is a lightweight method designed to extract pixels from large image files to a raw format using a minimum of system resources. The entire image or any regular portion of the image can be extracted.

The format of the StreamImageCommand method is:

MagickBooleanType StreamImageCommand(ImageInfo *image_info,int argc,
  char **argv,char **metadata,ExceptionInfo *exception)

A description of each parameter follows:

image_info
the image info.
argc
the number of elements in the argument vector.
argv
A text array containing the command line arguments.
metadata
any metadata is returned here.
exception
return any errors or warnings in this structure.