SptFade()

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Syntax

SptFade(bBuffer As bTftLibParameter1, bBrightness As bTftLibParameter2, bTransparent As bTftLibParameter3, wAlphaColor As wTftLibParameter1), Byte

Overview

Applies a fade (brightness) effect to a sprite buffer, enabling fade-in or fade-out visuals, with optional transparency support.

Parameters

Parameter

Description

bBuffer

Source sprite buffer to be processed.

bBrightness

Brightness level (0–255):
0 – Fully dark (fade out)
255 – Original brightness (no fade)

bTransparent

Transparency mode:
0 – Apply effect to all pixels
1 – Skip pixels matching the alpha-key color

wAlphaColor

Alpha-key color used when transparency is enabled.

Return value

Value

Meaning

0

Success

1

Invalid source buffer

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