NAME
miget_label_value - translate a label name into the corresponding integer
value.
SYNOPSIS
#include <minc2.h>
int miget_label_value ( mihandle_t volume,
const char *name,
int *value_ptr );
DESCRIPTION
This function is the inverse of miget_label_name. It is called to determine
what integer value, if any, corresponds to the given text string.
RETURN VALUE
MI_NOERROR on success, MI_ERROR on failure.