Embedded resources for the managed plugin pictures

Hi, I am developing a Unity managed plugin where my dll consists of classes and functions. As I want to embed png images to my dll- embedded resources- I can not read the images from the released dll at the Unity environment. Here are my checklist for the embedded resources: -images are dragged and dropped to the solution, I can see them at the mono with my classes. -each of them has a unique id -each of them are signed with the EmbeddedResource build action

Here is my code from dll function that is called at the Unity project's OnGui:

 System.Reflection.Assembly myAssembly = System.Reflection.Assembly.GetExecutingAssembly();

     System.IO.Stream myStream = myAssembly.GetManifestResourceStream("QBoard");

     byte[] img = ReadFully (myStream);

     questionTexture.LoadImage(img)

     myAssembly = Assembly.GetExecutingAssembly();

 GUI.Box (new Rect (dWidth/2-50, dHeight/2-50,200,50),new GUIContent(my2DTexture));

ReadFully function:

 public static byte[] ReadFully(Stream input)
 {
     byte[] buffer = new byte[16*1024];
     using (MemoryStream ms = new MemoryStream())
     {
         int read;
         while ((read = input.Read(buffer, 0, buffer.Length)) > 0)
         {
             ms.Write(buffer, 0, read);
         }
         return ms.ToArray();
     }
 }

Since the problem is from dll, the errors at the Unity is:

NullReferenceException: Object reference not set to an instance of an object

Finally, as a small test, if I call the image from the embedded resources and print its size it works however the problem is at loading image to texture.

     try
     {
         System.Reflection.Assembly myAssembly = System.Reflection.Assembly.GetExecutingAssembly();
         System.IO.Stream myStream = myAssembly.GetManifestResourceStream("QBoard");
         img = ReadFully (myStream);
         print(img.Length);

     }

Will be thankful for the helps or any ideas.