public ArrayList TransferPictures()
{
ArrayList pics = new ArrayList();
if (srcds.Id == IntPtr.Zero)
{
return(pics);
}
TwRC rc;
IntPtr hbitmap = IntPtr.Zero;
TwPendingXfers pxfr = new TwPendingXfers();
do
{
pxfr.Count = 0;
hbitmap = IntPtr.Zero;
TwImageInfo iinf = new TwImageInfo();
rc = DSiinf(appid, srcds, TwDG.Image, TwDAT.ImageInfo, TwMSG.Get, iinf);
if (rc != TwRC.Success)
{
CloseSrc();
return(pics);
}
rc = DSixfer(appid, srcds, TwDG.Image, TwDAT.ImageNativeXfer, TwMSG.Get, ref hbitmap);
if (rc != TwRC.XferDone)
{
CloseSrc();
return(pics);
}
rc = DSpxfer(appid, srcds, TwDG.Control, TwDAT.PendingXfers, TwMSG.EndXfer, pxfr);
if (rc != TwRC.Success)
{
CloseSrc();
return(pics);
}
pics.Add(hbitmap);
}while (pxfr.Count != 0);
rc = DSpxfer(appid, srcds, TwDG.Control, TwDAT.PendingXfers, TwMSG.Reset, pxfr);
return(pics);
}
internal static extern TwRC DSpxfer([In, Out] TwIdentity origin, [In] TwIdentity dest, TwDG dg, TwDAT dat, TwMSG msg, [In, Out] TwPendingXfers pxfr);
private TwRC DSpxfer(TwIdentity origin, TwIdentity dest, TwDG dg, TwDAT dat, TwMSG msg, TwPendingXfers pxfr)
{
if (IntPtr.Size == 8)
{
return(Twain64.DSpxfer(origin, dest, dg, dat, msg, pxfr));
}
else
{
return(Twain32.DSpxfer(origin, dest, dg, dat, msg, pxfr));
}
}