bool IMessageFilter.PreFilterMessage(ref Message m)
{
TwainCommand cmd = tw.PassMessage(ref m);
if (cmd == TwainCommand.Null)
{
return(false);
}
if (cmd == TwainCommand.Not)
{
return(false);
}
switch (cmd)
{
case TwainCommand.CloseRequest:
{
EndingScan();
tw.CloseSrc();
break;
}
case TwainCommand.CloseOk:
{
EndingScan();
tw.CloseSrc();
break;
}
case TwainCommand.DeviceEvent:
{
break;
}
case TwainCommand.TransferReady:
{
ArrayList pics = tw.TransferPictures();
EndingScan();
tw.CloseSrc();
for (int i = 0; i < pics.Count; i++)
{
dibhand = (IntPtr)pics[i];
bmpptr = GlobalLock(dibhand);
pixptr = GetPixelInfo(bmpptr);
IntPtr img = IntPtr.Zero;
Guid clsid;
String filename = "temp" + i + ".png";
if (!Gdip.GetCodecClsid(filename, out clsid))
{
return(false);
}
int st = Gdip.GdipCreateBitmapFromGdiDib(bmpptr, pixptr, ref img);
if ((st != 0) || (img == IntPtr.Zero))
{
return(false);
}
st = Gdip.GdipSaveImageToFile(img, filename, ref clsid, IntPtr.Zero);
Gdip.GdipDisposeImage(img);
addImageToPicturebox(filename);
actSaveToDb(null, null);
btnSaveToDb.Enabled = true;
}
break;
}
}
return(true);
}
