Implement enumeration in handler

Scripting Forums AppleScriptObjC and Xcode
#1

I’m trying to set the following handler to use the VNRequestTextRecognitionLevelFast enumeration, and I can’t get the syntax correct. I’ve worked on this for an hour and thought I should ask for help.

The documentation is here. The handler is:

use framework "Foundation"
use framework "Vision"
use scripting additions

set theFile to POSIX path of (choose file)

set theText to getImageText(theFile)

on getImageText(theFile)
	set theFile to current application's |NSURL|'s fileURLWithPath:theFile
	set requestHandler to current application's VNImageRequestHandler's alloc()'s initWithURL:theFile options:(missing value)
	set theRequest to current application's VNRecognizeTextRequest's alloc()'s init()
	requestHandler's performRequests:(current application's NSArray's arrayWithObject:(theRequest)) |error|:(missing value)
	set theResults to theRequest's results()
	set theArray to current application's NSMutableArray's new()
	repeat with anObservation in theResults
		set theResult to ((anObservation's topCandidates:1)'s objectAtIndex:0)'s |string|()
		(theArray's addObject:theResult)
	end repeat
	return (theArray's componentsJoinedByString:linefeed) as text
end getImageText
#4

Thanks Fredrik71. The revised handler works great. Thanks also for the explanation concerning setRecognitionLevel–it was very helpful.