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Forum Index : Microcontroller and PC projects : CMM2: PAGE COPY dont copy black only sometimes works

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bar1010
Senior Member

Joined: 10/08/2020
Location: United States
Posts: 197

Posted: 11:18pm 22 Feb 2021

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Why does using PAGE COPY 1 TO 0, B, 1 work with a blank screen,
but does not work when put on top of a PNG file?

One can put a PNG file on top of another, but the black pixels are displayed.

lizby
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Joined: 17/05/2016
Location: United States
Posts: 3477

Posted: 12:16am 23 Feb 2021

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Don't know your specific issue, but "rgb(black)" is transparent. To make a near-enough black, use rgb(notblack).

PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed

bar1010
Senior Member

Joined: 10/08/2020
Location: United States
Posts: 197

Posted: 10:31pm 23 Feb 2021

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lizby said on't know your specific issue, but "rgb(black)" is transparent. To make a near-enough black, use rgb(notblack).

Discovered that using BLIT with optional orientation parameter value &B100 does what I was looking to accomplish, namely not show black pixels. Note that I am using mode 9, 16.

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10591

Posted: 10:37pm 23 Feb 2021

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That screen looks great

JohnS
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Joined: 18/11/2011
Location: United Kingdom
Posts: 4147

Posted: 11:33pm 23 Feb 2021

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+1

yes it does.

John

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