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 from libdir/vips-x.x
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), im_guess_libdir(3), GOption(3)
COPYRIGHT
Birkbeck College and the National Gallery (c) 1994
11 April 1990