.NET BitmapSource is locking file

Question

I am using this C# code to access an image file in order to read metadata from it.

BitmapSource img = BitmapFrame.Create(uri);

Unfortunately the image file specified by uri becomes locked until the program ends. How do I prevent the image from being locked?

Answer 1

It will be locked for the lifetime of the img object. How long are you keeping it around? Have you tried getting the GC to explicitly dispose of it?

Answer 2

If you want to be able to delete/change the file immediately afterwards, read the whole file into memory, and then give it the MemoryStream instead. For example:

MemoryStream data = new MemoryStream(File.ReadAllBytes(file));
BitmapSource bitmap = BitmapFrame.Create(data);

Answer 3

maybe this could help ?

edit

BitmapSource img = BitmapFrame.Create(uri,BitmapCreateOptions.None,BitmapCacheOption.OnLoad);

BitmapCreateOptions.None = default option

BitmapCacheOption.OnLoad = Caches the entire image into memory at load time. All requests for image data are filled from the memory store.

from here