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  • CairoFormat::strideForWidth()

    (PECL cairo >= 0.1.0)

    Provides an appropriate stride to use

    说明

    publicstaticCairoFormat::strideForWidth(int $format,int $width): int

    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

    • Classname::Method()