void bigio_getmap ( int bd, /* big image descriptor (given) */ int startx, /* lowest pixel number in scan direction (given) */ int starty, /* lowest pixel number in lane direction (given) */ int endx, /* highest pixel number in scan direction (given) */ int endy, /* highest pixel number in lane direction (given) */ char *buffer, /* returned image (returned) */ int *status /* global status (given and returned) */ );