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imagecolorresolvealpha
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imagecolorresolvealpha

(PHP 4 >= 4.0.6, PHP 5)

imagecolorresolvealpha -- Get the index of the specified color + alpha or its closest possible alternative

Description

int imagecolorresolvealpha ( resource image, int red, int green, int blue, int alpha )

This function is guaranteed to return a color index for a requested color, either the exact color or the closest possible alternative.

Parameters

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.

Return Values

Returns a color index.

Notes

Note: This function requires GD 2.0.1 or later (2.0.28 or later is recommended).

See Also

imagecolorclosestalpha()

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