(PECL haru >= 0.0.1)
HaruPage::getTextMatrix — Get the current text transformation matrix of the page
Get the current text transformation matrix of the page.
Returns the current text transformation matrix of the page as an array of 6 elements: "a", "b", "c", "d", "x" and "y".
发生错误时抛出 HaruException 异常。