NAME¶
PS_open_image_file — Opens an image from file
SYNOPSIS¶
#include <pslib.h>
int PS_open_image_file(PSDoc *psdoc, const char *type, const char *filename,
const char *stringparam, int intparam)
DESCRIPTION¶
This function reads image data from a file. It can read png, jpeg, gif, tiff,
and eps files. png, jpeg, gif, and tiff images can only be read if pslib has
been compiled with support for those formats. Once an image has been loaded it
can be placed on a page with
PS_place_image(3).
Since version 0.4.5 of pslib images are read by default for later reuse. This
means that the image is saved into a so called reusable stream object. Later
calls of
PS_place_image(3) will only put a short sequence of
postscript code into the output file replaying the image. This reduces the
overall postscript file size, speeds up its processing by the postscript rip
and allows to place images into templates. This behaviour can be turned off by
setting the parameter `imagereuse' to false with
PS_set_parameter(3).
RETURN VALUE¶
Returns identifier of image or zero in case of an error. The identifier is a
positiv number greater 0.
SEE ALSO¶
PS_open_image(3),
PS_place_image(3),
PS_close_image(3)
AUTHOR¶
This manual page was written by Uwe Steinmann uwe@steinmann.cx.