[1.0.1] OnAppear()/observe() only works the first time for one image in same region

This bug is still present in 1.1.0

@Greg
I still have to revise the docs.

for you:
onAppear/onVanish detection is stopped after the first event in one observe run.
If you want to continue the observation, you have to say repeat() in the handler.

There are 2 options:
repeat() # immediately after return from handler continue detection of this event

or

repeat(time) # after return from handler pause for time seconds and then continue detection

@RaiMan

Thank you for responding.

When I use onAppear(image, handler) the handler is then called and operates. The last line inside the handler is repeat(), but this does not remedy the problem as expected.

I have a while loop operating, but observe() and onAppear(), including the handlers I use within onAppear() are all defined and activated above the loop.

Therefore, there is no logical continuity within which I can place repeat() 'after return from handler', I can only place it within the handler code because the last line as onAppear() is not inside the loop.

Am I misunderstanding your advice?

Something like this:

def found(event) :
    print "found it";repeat()
onAppear("1433207314491.png", found)
observe(background=True)
while True :
# sequential logic here

ok, my suggestion was a bit careless, sorry.

repeat is an event function and hence has to be used in the handler.

def found(event) :
    print "found it"
    event.repeat()

onAppear("1433207314491.png", found)
observe(background=True)
while True :
# sequential logic here

So I guess, the observe is for handling some popup or other situation, that comes up asynchronously during your worflow in the loop. So if you are sure the onAppear-target has vanished at the time you issue the repeat(), using this without a wait time is ok.

That solved it, thanks so very much!

That solved my problem, but created another.

onAppear does not seem to refresh getLastMatch(), and there seems to be no way to pass the image that triggered onAppear to my handler. So the hander is triggered, but has no idea where to click in order to process operations.

Is there a workaround for this?

The documentation talks about explicit operations like find() and implicit operations like click() setting getLastMatch(), but onAppear() does not seem to do this.

I can't imagine this is by design, is this a documented bug, or am I missing a key concept?

Thanks for your help.

the match is accessible as
event.getMatch()

as:
.getRegion() # the searchRegion
.getPattern() # the used Pattern (contains the image used)
.getCount() # how often the handler was visited

That works, many thanks!