How do I copy writeablebitmap to clipboard from an elevated trust silverlight application using P/Invoke? - pinvoke

Question

I've got a silverlight 5 application that is running elevated trust in-browser. This allows us to do things that wouldn't ordinarily be possible in silverlight like having more access to the clipboard via P/Invoke.
What I need to be able to do is copy controls to the clipboard so they could be pasted into Word or Outlook. I can convert the controls to an image via WriteableBitmap but copying the data to the clipboard is something I'm having issues with.
Calling code:
WriteableBitmap bmp = new WriteableBitmap(elements[0], new ScaleTransform() { ScaleX = 1.0, ScaleY = 1.0 });
int[] p = bmp.Pixels;
int len = p.Length * 4;
byte[] result = new byte[len];
Buffer.BlockCopy(p, 0, result, 0, len);
CopyToClipboardViaPInvoke(result, ClipboardFormat.CF_BITMAP);
Copy function:
private void CopyToClipboardViaPInvoke(byte[] data, ClipboardFormat format)
{
IntPtr p = IntPtr.Zero;
if (Native.OpenClipboard(p))
{
GCHandle pinnedArray = GCHandle.Alloc(data, GCHandleType.Pinned);
IntPtr pointer = pinnedArray.AddrOfPinnedObject();
try
{
Native.EmptyClipboard();
IntPtr result = Native.SetClipboardData(format, pointer);
}
finally
{
Native.CloseClipboard();
pinnedArray.Free();
}
}
}
The result says it's successful, but paste does nothing. IsClipboardFormatAvailable also states that the format is available on the clipboard. I've also tried various ClipboardFormat inputs and other methods of converting the control to an image without any luck.
Update 1
Thanks to suggestions from user629926 I've got what I think is a little closer but I'm still missing something.
Native.EmptyClipboard();
IntPtr bmp = IntPtr.Zero;
GCHandle pinnedArray = GCHandle.Alloc(bytes, GCHandleType.Pinned);
IntPtr bmpPointer = pinnedArray.AddrOfPinnedObject();
Native.StartupInput sin = new Native.StartupInput() { GdiplusVersion = 1 };
Native.StartupOutput sout = new Native.StartupOutput();
IntPtr gdip = IntPtr.Zero;
int startup = Native.GdiplusStartup(out gdip, ref sin, out sout);
int created = Native.GdipCreateBitmapFromScan0(width, height, width * 4, 0x0026200A, bmpPointer, out bmp);
IntPtr result = Native.SetClipboardData(format, bmp);
Native.DeleteObject(bmp);
Native.GdiplusShutdown(ref gdip);

Answer 1

Use GdipCreateBitmapFromScan0 to get HBitmap from you array and pass it to clipboard and the DeleteObject to free it.
[DllImport("gdiplus.dll")]
static extern int GdipCreateBitmapFromScan0(int width, int height, int stride, int format, IntPtr scan0, out IntPtr bitmap);
[DllImport("gdi32.dll")]
public static extern bool DeleteObject(IntPtr hObject);