View Full Version : Reading screen color
10-12-2006, 02:57 AM
I wonder if there is a way to simulate the Screen Mode of Quick Basic.
The ability to flyover with the mouse cursor over a region and detect the color at that location.
10-12-2006, 03:31 AM
The information is available in memory, but there are not routines to extract it conveniently. Are you using one of the graphics drivers or a text-only driver and for which device (VGA hi/lores or TV)?
Beau Schwabe (Parallax)
10-12-2006, 07:10 AM
For the VGA graphics I have posted, there is a POINT(x,y) function that will return the pixel color. Since there are 2 colors it will only return a "0" or a "1".
BTW) Quick Basic uses POINT(x,y) for this also.
Beau Schwabe (mailto:email@example.com)
IC Layout Engineer
10-12-2006, 09:16 AM
You are right,
POINT(x,y) and POINT(color) does the same thing.
For now I am using the TV mode.
Perhaps I have to wait for the Hydra book , I am sure Andre covers this.