Qt WinRT App cannot access file permission denied

Question

I need to develop WinRT App using Qt and FFMPEG, I build the ffmpeg for WinRT based on the instruction here and I am able to link the library with my project. Now I need to ope

Answer 1

Try to add a file protocol to the manifest page, contains your file extension you want to access/ create or play with..

for example, .xml, .txt, .etc..

I always face this 'unknown' error when try to access files without adding the ext file protocol..

UPDATE: More Information: https://msdn.microsoft.com/library/windows/apps/hh464906.aspx#file_activation

Do it by: Package.appxmanifest > Declarations > Add a 'File Type Association' > your type name and ext. is required.

Example in a code:

  
    
      
        
          .config
        
      
    
   

Change 'myfile' and '.config'

Good luck!