|ind||The index of the time line to check for.|
With this function you can check and see whether a time line
exists (returns true) or not (returns false).
This is particularly useful when creating Timelines dynamically
using the timeline_add
function, but you should note that if you search for an
uninitialised variable (that would otherwise be assigned to a time
line's index) an error will be thrown.
if timeline_exists(global.tl) timeline_delete(global.tl);
The above code checks to see if a time line exists and is indexed in the global variable "tl" and if so it then deletes that time line.