From the following blog post:
Files marked with build action of “Resource” are added to a special
resx file called ProjectName.g.resx. This file is generated during the
build, it is not part of the project. You can access content of the
‘Resource’ files by creating an instance of ResourceManager and
calling GetStream(filename). Additionally, in WPF applications you can
access these resources via Application.GetResourceStream() in C# and
via things like in XAML.
var resourceManager = new ResourceManager("ConsoleApp5.g", Assembly.GetExecutingAssembly());
var resources = resourceManager.GetResourceSet(CultureInfo.CurrentUICulture, true,
true);
foreach (var res in resources)
{
System.Console.WriteLine(((DictionaryEntry)res).Key);
}
where ((DictionaryEntry)res).Value will be Stream.