Screenshot share issues - The specified path is invalid

Hi there,

i want to create a simple share button for my game on Windows Phone 8.1. But every time i use a file in the DataTransferManager, i get an exception: The specified path is invalid. (Exception from HRESULT: 0x800700A1)

In unity, i create a Screenshot with following code:

Code (CSharp):

1. IEnumerator ShareScore() {
2.         yield return new WaitForEndOfFrame();
3.         Texture2D tex = new Texture2D(Screen.width, Screen.height);
4.         tex.ReadPixels(new Rect(0, 0, Screen.width, Screen.height), 0, 0);
5.         tex.Apply();
6.         byte[] bytes = tex.EncodeToPNG();
7.         Destroy(tex);
8.  
9.         string path = Application.persistentDataPath + "/" + "screenshot.png";
10.         UnityEngine.Windows.File.WriteAllBytes(path, bytes);
11.  
12.         UnityEngine.WSA.Application.InvokeOnUIThread(() => {
13.             krWP81ShareLib.WP81ShareService.Share(name, content, path);
14.         }, false);

WP81ShareService is my external Assembly (fake and deploy DLL). To share the picture, i use this code:

Code (CSharp):

1. if (!String.IsNullOrEmpty(mCurrentScreenshotPath)) {
2.                 // Because we are making async calls in the DataRequested event handler,
3.                 // we need to get the deferral first.
4.                 DataRequestDeferral deferral = request.GetDeferral();
5.                 try {
6.                     StorageFile storageFile = await StorageFile.GetFileFromPathAsync(mCurrentScreenshotPath);
7.                     RandomAccessStreamReference rasr = RandomAccessStreamReference.CreateFromFile(storageFile);
8.                     request.Data.SetStorageItems(new StorageFile[] { storageFile });
9.                 }
10.                 catch (Exception ex) {
11.                     throw new Exception(ex.Message + " --> Path: " + mCurrentScreenshotPath, ex);
12.                 }
13.                 finally {
14.                     deferral.Complete();
15.                 }
16.             }

I also tried other approches, like Application.CaptureScreenshot() or the SetBitmap() call on the Data-Field.
Every time the same result. I guess there is something wrong in path argument? C:/Data/Users/DefApps/APPDATA/Local/Packages/a36ef184-e79d-4e58-9ea8-5e414cefeb86_635r5nbzd2de0/LocalState/screenshot.png

I have the latest Unity Version (not beta).
Any idea?

 

OK, i found the problem. I used the wrong slashes all the time... With \ its all fine.

 

Take the guess work out of it and use

Path.Combine(Application.persistentDataPath, "screenshot.png");

Will use the correct method for the platform.

 

fake and deploy dll?
i have managed to save the screenshot.
could you provide step by step instructions on how to share a screenshot in wp8.1