imagecolorexact

Manuál PHP
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imagecolorexact

(PHP 3, PHP 4, PHP 5)

imagecolorexact -- Get the index of the specified color

Popis

int imagecolorexact ( resource image, int red, int green, int blue )

Returns the index of the specified color in the palette of the image.

If you created the image from a file, only colors used in the image are resolved. Colors present only in the pallete are not resolved.

image: An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
red: Value of red component
green: Value of green component
blue: Value of blue component

Returns the index of the specified color in the palette, or -1 if the color does not exist.

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