Strange behavior Mergpop (2.0.7) and Retina screens?

[williamdesmet]

Yesterday I got an e-mail about a problem with one of my apps.
I am trying to debug the problem now and maybe anyone can help me.

In my app I use MergPop (MergExt) for saving an image.
When putting my app through Xcode on my iPad the image is saved nicely using MergPop.
But when I download the app from the Appstore (I never did before until today) only a part of the image is saved using MergPop.
This is on a iPad 3 with retina screen with iOS 7. On a non Retina screen (iPad mini) with iOS 8 the behavior is normal and the entire image is saved.

My app was uploaded to the App store in februari 2014 and today I noticed that MergPop was updated on 3/24/14.
Does anyone recognize my problem. Is it due to an older version of Mergpop (2.0.7?) and retina screens?
I also contacted Monty but he didn't respond yet.

Greetings,

William

[jacque]

Mergpop just returns info about the user choice but doesn't do anything about creating the actual image. That's done in your script. It sounds like the handler isn't taking the screen resolution into account, but that shouldn't be different based only on where you acquired the app.

[williamdesmet]

Hi Jacque,

Thanks for your answer.
It is exactly like I said and that's what makes it so strange.
You're right about the screen resolution. I just do this:

Code: Select all

export snapshot from rectangle "20,72,1000,742"  to tFoto as PNG 
put tFoto into img "foto"
put tFoto into URL ("file:"&specialFolderPath("documents")&"/woordparachute.png") 
put specialFolderPath("documents")&"/woordparachute.png" into tImage
--
mergPopActivity "",tImage,"",""

But why does it work when I put it through Xcode on my iPad and not through the AppStore?
The only thing I can think off now is a difference in Xcode and LC versions (between februari 2014 and today).

Anyone else seen this behavior?

[jacque]

It isn't quite clear in your first message whether you are downloading from the App Store to both devices. If you put the app on the retina device, test it, delete it, and then download it from the App Store to the same device, does the problem occur? If so, that really doesn't make any sense.

Your script designates a specific rectangle, which would clip on retina if you are using exact pixels. Are you setting iPhoneDeviceResolution or usePixelScaling anywhere in your script?

[monte]

Hi

Yes if you are still on LC 6.5 and setting iPhoneUseDeviceResolution to true then you would need to scale the rectangle by 2. As mergPopActivity isn't actually saving the image I don't believe it's involved in the problem.

Cheers

Monte

[williamdesmet]

Hi there,

Thanks voor your answers.
@Jacque: before I posted my question here I tested what you describe. Only on the retina device the problem occurs.
I am not using iPhoneDeviceresolution or usePixelScaling.
@Monty: I use LC 6.6.3 (iPhoneDeviceresolution is deprecated) . Should I use PixelScale now? Set the pixelScale to ‘1.0’ or set the pixelScale to the systemPixelScale?

Greetings,

William

[monte]

I thought I read you had resolved the issue now from the posts I've seen on the use list. On 6.6 you don't need to worry about device resolution.

[williamdesmet]

Hi there,
I almost gave up but but after testing with different lines of code I added 'of this cd" to the code and all is fine now.
So I changed:

Code: Select all

export snapshot from rectangle "20,72,1000,742"  to tFoto as PNG

into

Code: Select all

export snapshot from rectangle "20,72,1000,742"  of this cd to tFoto as PNG

LC 6.6.5, iOS 8.1 (and iOS 7.1) and mergPop 2.0.10.

greetings,

William