Linux Certif

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im_init_world

NAME

im_init_world, im_get_option_group - start up VIPS

SYNOPSIS

#include <vips/vips.h>

int im_init_world( const char *argv0 )
GOptionGroup *im_get_option_group( void );

DESCRIPTION

im_init_world(3) starts up the VIPS library. It:

 - initialises any libraries that VIPS is using, including GObject
 - starts up the threading system
 - guesses where the VIPS data files are and sets up i18n
 - loads any plugins

The argv0 argument is the value of argv[0] your program was passed by the host operating system. VIPS uses this with im_guess_prefix(3) to try to find the various VIPS data files.

EXAMPLE

  int
  main( int argc, char **argv )
  {
    if( im_init_world( argv[0] ) )
      error_exit( "unable to start VIPS" );

    return( 0 );
  }

im_get_option_group(3) returns a GOptionGroup containing various VIPS command-line options. It can be used with GOption to help parse argc/argv.

SEE ALSO

im_guess_prefix(3), GOption(3)

COPYRIGHT

Birkbeck College and the National Gallery (c) 1994