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# ImageColorTransparent

(PHP 3 <= 3.0.18, PHP 4 >= 4.0.0)

ImageColorTransparent -- Define a color as transparent

## Description

``int imagecolortransparent` (int im [, int col])`

ImageColorTransparent() sets the transparent color in the `im` image to `col`. `Im` is the image identifier returned by ImageCreate() and `col` is a color identifier returned by ImageColorAllocate().

The identifier of the new (or current, if none is specified) transparent color is returned.

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