CairoFormat
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CairoFormat::strideForWidth

(PECL cairo >= 0.1.0)

CairoFormat::strideForWidthProvides an appropiate stride to use

说明

public static int CairoFormat::strideForWidth ( int $format , int $width )

This method provides a stride value that will respect all alignment requirements of the accelerated image-rendering code within cairo.

参数

format

The desired CairoFormat to use

width

The width of the image

返回值

The appropriate stride to use given the desired format and width, or -1 if either the format is invalid or the width too large.

范例

Example #1 CairoFormat::strideForWidth() example

<?php
/* ... */
?>

以上例程的输出类似于:

...

参见


CairoFormat
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