C-Sharp (C#) Group: Re: Receiving TWAIN images

Mmkay, it compiled, using your first example and the
DibToImage class
you posted.  But I'm still not getting anything through into
the
picture box, and I'm not sure how to troubleshoot in
between.


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Mmkay; I tested with changing the text of a label, and the
segment of
code isn't even getting executed.  That would explain it!

Here's the context of the full function.  I don't understand
the event
to begin with, so I'm stuck as to how to get the switch for
TransferReady to execute:

bool IMessageFilter.PreFilterMessage(ref Message m)
        {
            TwainCommand cmd = incoming.PassMessage(ref m);
            if (cmd == TwainCommand.Not)
                return false;

            switch (cmd)
            {
                case TwainCommand.CloseRequest:
                    {
                        EndingScan();
                        incoming.CloseSrc();
                        break;
                    }
                case TwainCommand.CloseOk:
                    {
                        EndingScan();
                        incoming.CloseSrc();
                        break;
                    }
                case TwainCommand.DeviceEvent:
                    {
                        break;
                    }
                case TwainCommand.TransferReady:
                    {
                        lblStatus.Text = "Receiving
Data...";
                        ArrayList pics =
incoming.TransferPictures();
                        EndingScan();
                        incoming.CloseSrc();
                        picnumber++;
                        for (int i = 0; i < pics.Count;
i++)
                        {
                            IntPtr img = (IntPtr)pics[i];
                            IntPtr bmpptr = PicForm
.GlobalLock(img);
                            Bitmap b =
DibToImage.WithStream(bmpptr);
                            //IntPtr bmpptr =
PicForm.GlobalLock( img
);
		                    //IntPtr pixptr =
PicForm.GetPixelInfo( bmpptr );
                            //Bitmap b =
Gdip.GdipCreateBitmapFromGdiDib(bmpptr, pixptr);
                            //Gdip.GlobalFree(bmpptr);
                            pbSample.Image = b;


                        }
                        break;
                    }
            }

            return true;
        }


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