(PECL haru >= 0.0.1) Get the current filling color

(PECL haru >= 0.0.1) Get current page layout

(PECL haru >= 0.0.1) Set the appearance of the page

(PECL haru >= 0.0.1) Get the vertical ascent of the font

(PECL haru >= 0.0.1) Save the document into the specified file

(PECL haru >= 0.0.1) Get the number of bits used to describe each color component of the image

(PECL haru >= 0.0.1) Get the current line width

(PECL haru >= 0.0.1) Set the appearance of the page to fit the window height

(PECL haru >= 0.0.1) Get the value of miter limit

(PECL haru >= 0.0.1) Set stroking color for the page