(PECL imagick 2.0.0)
ImagickDraw::setFontStretch — Sets the font stretch to use when annotating with text
本函数还未编写文档，仅有参数列表。
Sets the font stretch to use when annotating with text. The AnyStretch enumeration acts as a wild-card "don't care" option.
STRETCH_ constant
没有返回值。