Gets certain values

说明

float ps_get_value ( resource $psdoc , string $name [, float $modifier ] )

Gets several values which were set by ps_set_value(). Values are by definition float values.

The parameter name can have the following values.

fontsize: The size of the currently active font or the font whose identifier is passed in parameter modifier .
font: The currently active font itself.
imagewidth: The width of the image whose id is passed in the parameter modifier .
imageheight: The height of the image whose id is passed in the parameter modifier .
capheight: The height of a capital M in the currently active font or the font whose identifier is passed in parameter modifier .
ascender: The ascender of the currently active font or the font whose identifier is passed in parameter modifier .
descender: The descender of the currently active font or the font whose identifier is passed in parameter modifier .
italicangle: The italicangle of the currently active font or the font whose identifier is passed in parameter modifier .
underlineposition: The underlineposition of the currently active font or the font whose identifier is passed in parameter modifier .
underlinethickness: The underlinethickness of the currently active font or the font whose identifier is passed in parameter modifier .
textx: The current x-position for text output.
texty: The current y-position for text output.
textrendering: The current mode for text rendering.
textrise: The space by which text is risen above the base line.
leading: The distance between text lines in points.
wordspacing: The space between words as a multiple of the width of a space char.
charspacing: The space between chars. If charspacing is != 0.0 ligatures will always be dissolved.
hyphenminchars: Minimum number of chars hyphenated at the end of a word.
parindent: Indention of the first n line in a paragraph.
numindentlines: Number of line in a paragraph to indent if parindent != 0.0.
parskip: Distance between paragraphs.
linenumberspace: Overall space in front of each line for the line number.
linenumbersep: Space between the line and the line number.
major: The major version number of pslib.
minor: The minor version number of pslib.
subminor, revision: The subminor version number of pslib.

参数

psdoc: Resource identifier of the postscript file as returned by ps_new().
name: Name of the value.
modifier: The parameter modifier specifies the resource for which the value is to be retrieved. This can be the id of a font or an image.

返回值

Returns the value of the parameter or FALSE.

参见

ps_set_value()