Method fieldOffset

src/com/sun/jna/Structure.java:624–631

Returns the calculated offset of the given field. @param name field to examine @return return offset of the given field

(String name)

     * @return return offset of the given field
     */
    protected int fieldOffset(String name) {
        ensureAllocated();
        StructField f = fields().get(name);
        if (f == null) {
            throw new IllegalArgumentException("No such field: " + name);
        }
        return f.offset;
    }

    /** Force a read of the given field from native memory.  The Java field
     * will be updated from the current contents of native memory.