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FrameBuffer in src_demos/delphi_demos reports an AV exception.

I means fading-out rendering a graphics with alpha value from 1.0 to 0.0 gradually and fading-in from 0.0 to 1.0.
That is a useful effect in some situations.

in this question, i need a procedure...

Can you tell me how to show fade-in and fade-out effect with nxPascal?