ole_method

static VALUE
fole_method_help(VALUE self, VALUE cmdname)
{
    ITypeInfo *pTypeInfo;
    HRESULT hr;
    struct oledata *pole = NULL;
    VALUE obj;

    SafeStringValue(cmdname);
    pole = oledata_get_struct(self);
    hr = typeinfo_from_ole(pole, &pTypeInfo);
    if(FAILED(hr))
        ole_raise(hr, rb_eRuntimeError, "failed to get ITypeInfo");

    obj = create_win32ole_method(pTypeInfo, cmdname);

    OLE_RELEASE(pTypeInfo);
    if (obj == Qnil)
        rb_raise(eWIN32OLERuntimeError, "not found %s",
                 StringValuePtr(cmdname));
    return obj;
}