(PECL imagick 2.0.0)
ImagickDraw::setFontWeight — Sets the font weight
$font_weight
)本函数还未编写文档，仅有参数列表。
Sets the font weight to use when annotating with text.
font_weight
skmanji at manji dot org (2009-05-26 05:15:26)
Valid Range 100-900. I found that any value 551 and above would give me bold.