Using vb.net, I am attempting to copy a byte array buffer to a
structure but need to specify an offset, in bytes, from the top of the
structure. I have studied the Marshal class but it appears I can only
specify the structure name...
I would do it in c# since you can just use a pointer
But, if you
must do this in VB.NET - here are a couple of ideas... No real tested code,
since I'm on my Linux box tonight - but maybe something that would be
useful... I've never attempted this, so this might not work - so I'm
sort of sticking my neck out here with this stream of conciousness thing
Look at the Marshal.StructureToPtr method...
Look at the Marshal.AllocHGlobal method...
Look at the Marshal.FreeHGlobal method...
Look at the Marshal.Copy method...
Look at the Marshal.PtrToStructure...
Structure TheStruct
...
End Structure
Dim ts As TheStruct
Dim mem As IntPtr = Marshal.AllocHGlobal(Marshal.SizeOf(ts))
Dim offset As IntPtr = new IntPtr(mem.ToInt32() + youroffset)
Marshal.Copy(sourceArray, 0, offset, sourceArray.Length)
ts = CType(Marshal.PtrToStructure(mem), TheStruct)
Marshal.FreeHGlobal(mem)
HTH - if not... Well, let us know and maybe we can come up with a
better more workable plan - like writing this function in C# and calling
it from VB.NET
