(PECL haru >= 0.0.1)
HaruPage::getLineWidth — Get the current line width
Get the current line width.
锟剿猴拷锟斤拷没锟叫诧拷锟斤拷锟斤拷
Returns the current line width.
锟斤拷锟斤拷锟斤拷锟斤拷时锟阶筹拷 HaruException 锟届常锟斤拷