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# cpdf_setgray

(PHP 3>= 3.0.8, PHP 4 , PHP 5)

cpdf_setgray -- Sets drawing and filling color to gray value

## Description

bool cpdf_setgray ( int pdf_document, float gray_value )

The cpdf_setgray() function sets the current drawing and filling color to the given gray value. 成功回傳`TRUE`失敗回傳`FALSE`。

See also cpdf_setrgbcolor_stroke() and cpdf_setrgbcolor_fill().

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