cpdf_setgray
(PHP 4, PHP 5 <= 5.0.5)
cpdf_setgray — Sets drawing and filling color to gray value
說明
bool cpdf_setgray
( int $pdf_document
, float $gray_value
)
Sets the current drawing and filling color to the given gray value.
Return值
如果成功則回傳 TRUE，失敗則回傳 FALSE。