gcx:alphaMode

SYNOPSIS

If specified, selects mode as the new alpha blending mode for this graphics context.
With no arguments, returns the mode currently used by gcx.

Values for mode are "blend" and "store".

In "blend" mode, alpha blending is performed for any graphics operation on this context.

In "store" mode, the source alpha information is copied to this context verbatim, overwriting any alpha information already stored.

Note: The commands gcx:blit and gcx:blitframe are an exception, as their behaviour is selected using gcx:blitMode.

A string indicating the alpha blending mode which is currently used by gcx.

Raises an error if gcx is not a graphics context or if mode is not a valid value.

> >

fb = gfx.open() print (fb:alphaMode())

blend