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[RaiMan <question264487@xxxxxxxxxxxxxxxxxxxxx>]

Question #264487 on Sikuli changed:
https://answers.launchpad.net/sikuli/+question/264487

RaiMan proposed the following answer:
ok, for production you might reduce it to something like that:

# the arrows
aL = "aleft.png"
aR = "aright.png"
aU = "aup.png"
aD = "adown.png"

# what should be typed in case
arrows = {aL : Key.LEFT, aR : Key.RIGHT, aU : Key.UP, aD : Key.DOWN}

# get the search region
reg = Region(x, y, w, h) # insert the real coordinates you might have got from the selectRegion()
# or use any other suitable method to define the region.

# the concrete solution
reg.setCols(5) # segment the region horizontally into 5 segments

while True: # loop until finished
  # loop through the segments
  for i in range(5):
    col = reg.getCol(i)
  # col.highlight(1)
    # loop through the arrow types
    for a in arrows:
      # check the arrow type in segment
      if col.exists(Pattern(a).similar(0.8), 0):
        print i, a, col.getLastMatch().getScore()
        type(arrows[a]) # type the associated key
        break # leave the inner loop
  if not popAsk("repeat?"):
    exit()

You might of course use other means, to trigger the next loop (some
image appeared or vanished, many options ;-)

the FindFailed surely comes from this:
# for test only: a sample find for each arrow type
for a in arrows:
  reg.find(a)

because at crash, the arrow bar did not show a left arrow at all

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