Convert fixed and byte* from c# to vb.net

I have the following code in c# and would like to convert it in VB.NET. I'm not sure what fixed and byte* are and how they can be converted. The telerik converter does not provide any help on this.

fixed (byte* ptrShapeBufferPtr = pointerInfo.PtrShapeBuffer)
{
    mDeskDupl.GetFramePointerShape(
           frameInfo.PointerShapeBufferSize, 
           (IntPtr)ptrShapeBufferPtr, 
           out pointerInfo.BufferSize, 
           out pointerInfo.ShapeInfo);
}

Any ideas?