How to initialize bitmap in this context?

I have the following code, and I get an error complaining that the bitmap is not initialized

Code:

  Dim rfl As Reflector
Dim obj As Object
Dim B As Bitmap

    obj = rfl.CreateObject("android.media.MediaMetadataRetriever")
    rfl.Target = obj
    rfl.RunMethod2("setDataSource", vidfile, "java.lang.String")
    B = rfl.RunMethod3("getFrameAtTime", 0, "java.lang.long", 3, "java.lang.int")

Dim HV As Int = B.Height 'Error on this line
    Dim WV As Int = B.Width  

...

How to initialize bitmap in this context?

from B4X Community - Android, iOS, desktop, server and IoT programming tools http://ift.tt/29o3aI9
via IFTTT