Image
PHP Manual

imagecolorexactalpha

(PHP 4 >= 4.0.6, PHP 5)

imagecolorexactalpha — Get the index of the specified color + alpha

Описание

int imagecolorexactalpha ( resource $image , int $red , int $green , int $blue , int $alpha )

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

Список параметров

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

alpha

A value between 0 and 127. 0 indicates completely opaque while 127 indicates completely transparent.

The colors parameters are integers between 0 and 255 or hexadecimals between 0x00 and 0xFF.

Возвращаемые значения

Returns the index of the specified color+alpha in the palette of the image, or -1 if the color does not exist in the image's palette.

Примечания

Note: Эта функция нуждается в GD версии 2.0.1 или выше.

Смотрите также


Image
PHP Manual