I think I simplified my example a little too far. I'm trying to
display a Bitmap from bytes generated in Python code.
bytes = array.array('c') # tried 'B' also
# generate bitmap bytes ...
bitmap = Bitmap(width, height, PixelFormat.Format24bppRgb)
bmData = bitmap.LockBits(Rectangle(0, 0, bitmap.Width,
bitmap.Height),
ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb)
total_bytes = (bmData.Stride) * bmData.Height
Marshal.Copy(bytes, 0, bmData.Scan0, total_bytes);
bitmap.UnlockBits(bmData)
The IronPython exception I'm getting is:
TypeError: expected IntPtr, got array
Casting the bytes array to IntPtr changed the error into:
TypeError: expected int, got array
I'm using IronPython 2.6 (2.6.10920.0) on .NET 2.0.50727.4927
Any idea?
Thanks,
-- Marcel
On Jun 11, 11:27 pm, David Escobar <davidesco...@ieee.org> wrote:
> This worked for me (based on the code you provided):
>
> import clr
> from System import Array
>
> dest = Array[str](bytes)
>
> On Fri, Jun 11, 2010 at 9:51 PM, Marcel <marcel.vandendun...@gmail.com>wrote:
>
> > I have a python method that returns a Python byte array.array('c').
>
> > Now, I want to copy this array using
> > System.Runtime.InteropServices.Marshal.Copy. This method however
> > expects a .NET Array.
>
> > import array
> > from System.Runtime.InteropServices import Marshal
>
> > bytes = array.array('c')
> > bytes.append('a')
> > bytes.append('b')
> > bytes.append('c')
> > Marshal.Copy(bytes, dest, 0, 3)
>
> > Is there a way to make this work without copying the data? If not, how
> > do I convert the data in the Python array to the .NET array?
>
> > Thanks,
> > -- Marcel
> > _______________________________________________
> > Users mailing list
> > us...@lists.ironpython.com
> >http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
>
>
>
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