imagecolorresolvealpha

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(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.

Nota: Esta funcion requiere GD 2.0.1 o posterior.