color check

Archived
1

Would there be a way to ask the Roku what colors are currently drawn on the (ro) screen?
So if for instance, I wanted to determine that the color black “&hFF” didn’t exist at any pixel location?

Thanks

2

I haven’t tried it yet, but maybe this will work if you want a single pixel:

pixelRGBAValue = bitmap.GetByteArray (x, y, 1, 1) [0]

Or get the whole array for the whole bitmap and examine each array element in turn to find if any color value appears anywhere in the bitmap.

3

Thanks belltown, I’ll see if that works.

edit:It seems to work, but of course its too slow to be really practical, duh! only 921,000 array entries to check!

         dooda = m.screen.GetByteArray(0, 0, 1280, 720)
	      for each color in dooda
				if color = 0
				return false
				else
				end if
			end for
			return true
4

conjuring effective shortcuts is what we do, right? :sunglasses: