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== Example ==
== Example ==
<syntaxhighlight>gc:setAlpha(0) -- will be invisible
<syntaxhighlight>function on.paint(gc)
gc:setAlpha(127) -- will be half-visible
gc:setAlpha(0)
gc:setAlpha(255) -- will be fully-visible</syntaxhighlight>
gc:drawString("hello",10,10,"top") -- will be invisible
gc:setAlpha(127)
gc:drawString("hello",50,50,"top") -- will be half-visible
gc:setAlpha(255)
gc:drawString("hello",100,100,"top") -- will be fully-visible
end</syntaxhighlight>
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[[Category:gc]]
[[Category:gc]]
[[Category:Undocumented/Unofficial]]
[[Category:Undocumented/Unofficial]]
