note 47023 deleted from function.imagelayereffect by bjori

Note Submitter: ttoohey at php dot net ---- This function is similar to the existing ImageAlphaBlending() function in that it affects the way pixel drawing will be done during any kind of drawing function. It extends the functionality by allowing you to use one of the effect modes (listed below). "effect" takes one of the values: IMG_EFFECT_REPLACE Use pixel replacement (equivalent of ImageAlphaBlending(FALSE)) IMG_EFFECT_NORMAL Use normal pixel blending (equivalent of ImageAlphaBlending(TRUE)) IMG_EFFECT_OVERLAY Use the overlay routine. Overlay has the effect that black background pixels will remain black, white background pixels will remain white, but grey background pixels will take the colour of the foreground pixel.