Property RenderMode() As TV3D65.CONST_TV_RENDERMODE
Get
Return 0
End Get
That's weird! Why are you just returning 0 ??
If you don't want a Get-Method then just declare it as "WriteOnly":
WriteOnly Property RenderMode() As TV3D65.CONST_TV_RENDERMODE
Set(ByVal value As TV3D65.CONST_TV_RENDERMODE)
scene.SetRenderMode(value)
End Set
End Property