When is a GIF Finished Playing?

[Scott Rossi]

If you want the GIF to stop playing when it reaches the last frame, why
wouldn't you set the repeatCount to 1?

If your GIF can play multiple times through (repeatCount = -1), then I
believe the only way you can track its frames is to poll it, with a
frequency that slightly exceeds its frame delay.  Try running a loop while
the GIF is playing, maybe something like:

# GIF WITH 10 MS FRAME DELAY

on mouseUp
   set the repeatCount of img "myGif" to -1
   trackPlayback
end mouseUp

on trackPlayback
   if the currentFrame of img "myGif" > (the frameCount of img "myGif" - 1)
then
      set the repeatCount of img "myGif" to 0
      set the currentFrame of img "myGif" to the frameCount of img "myGif"
-- just to be sure
      exit trackPlayback
   end if
   send "trackPlayback" to me in 8 millisecs
end trackPlayback


Regards,

Scott Rossi
Creative Director
Tactile Media, UX/UI Design



On 2/10/16, 12:06 PM, "use-livecode on behalf of Ray"
<use-livecode-bounces at lists.runrev.com on behalf of ray at linkit.com> wrote:

> It would also be helpful if a message was sent each time a new frame is
> displayed.  We could trap for those messages, count them, and go from there.
> 
> On 2/10/2016 2:48 PM, Sannyasin Brahmanathaswami wrote:
>>    
>>  I have a similar need.
>> 
>>  Seems we can set the repeatCount, but I don¹t see a way to test for
>> ³currentLoop²
>> 
>>  Theoretically we need something like ‹ where I am making up an unknown prop
>> called ³currentLoop":
>> 
>>  if (the currentFrame of img "myGif" = the frameCount of img ³myGif²) AND \
>>  (the currentLoop of img ³myGif" = the repeatCount of img ³myGif")
>> 
>>  then
>> 
>>  answer ³Ok I am indeed done²
>> 
>>  end if
>> 
>>  On February 10, 2016 at 9:29:57 AM, Ray
>> (ray at linkit.com(mailto:ray at linkit.com)) wrote:
>> 
>>>  Thanks Scott, but if you've set the RepeatCount to more than 1 and it's
>>>  looping through the frames, twice for example, isn't there a possibility
>>>  you'll get the CurrentFrame the same as the FrameCount too early?
>>