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Forum Index : Microcontroller and PC projects : Is it possible to save VGA screen (content) to a file

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phil99

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Joined: 11/02/2018
Location: Australia
Posts: 2610

Posted: 11:54pm 04 Jan 2025

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The Pixel x,y,Colour Command sets the value of a pixel and the Pixel(x,y) Function reads the 24 bit value of a pixel.

eg
Col% = Pixel(x,y)
Red = Col% >> 16
Green = (Col% >> 8) and 255
Blue = Col% and 255
? Red, Green, Blue, Col%

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10240

Posted: 10:33am 05 Jan 2025

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Quote tested Save compressed image "pic1.bmp",0,42,319,198
crash , black screen , have to reboot Pico2 ...

This is a bug when the width is not a multiple of 2. Actually I assume you intended to save the full width of the screen so you probably wanted 320 not 319 but I'll put it on the list of minor things to be fixed.
The fix will be to create an error if the width is not a multiple of 2
Edited 2025-01-05 20:48 by matherp

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