public TwainCommand PassMessage(ref Message m)
{
if (srcds.Id == IntPtr.Zero)
{
return(TwainCommand.Not);
}
int pos = GetMessagePos();
winmsg.hwnd = m.HWnd;
winmsg.message = m.Msg;
winmsg.wParam = m.WParam;
winmsg.lParam = m.LParam;
winmsg.time = GetMessageTime();
winmsg.x = (short)pos;
winmsg.y = (short)(pos >> 16);
Marshal.StructureToPtr(winmsg, evtmsg.EventPtr, false);
evtmsg.Message = 0;
TwReturnCode returnCode = DSevent(appid, srcds, TwDG.Control, TwData.Event, TwMessageCode.ProcessEvent, ref evtmsg);
if (returnCode == TwReturnCode.NotDSEvent)
{
return(TwainCommand.Not);
}
if (evtmsg.Message == (short)TwMessageCode.XFerReady)
{
return(TwainCommand.TransferReady);
}
if (evtmsg.Message == (short)TwMessageCode.CloseDSReq)
{
return(TwainCommand.CloseRequest);
}
if (evtmsg.Message == (short)TwMessageCode.CloseDSOK)
{
return(TwainCommand.CloseOk);
}
if (evtmsg.Message == (short)TwMessageCode.DeviceEvent)
{
return(TwainCommand.DeviceEvent);
}
return(TwainCommand.Null);
}
public bool Init(IntPtr hwndp)
{
Finish();
TwReturnCode returnCode = DSMparent(appid, IntPtr.Zero, TwDG.Control, TwData.Parent, TwMessageCode.OpenDSM, ref hwndp);
if (returnCode == TwReturnCode.Success)
{
returnCode = DSMident(appid, IntPtr.Zero, TwDG.Control, TwData.Identity, TwMessageCode.GetFirst, srcds);
if (returnCode == TwReturnCode.Success)
{
hwnd = hwndp;
return(true);
}
else
{
returnCode = DSMparent(appid, IntPtr.Zero, TwDG.Control, TwData.Parent, TwMessageCode.CloseDSM, ref hwndp);
return(false);
}
}
return(false);
}
public bool GetNext()
{
TwReturnCode returnCode = DSMident(appid, IntPtr.Zero, TwDG.Control, TwData.Identity, TwMessageCode.GetNext, srcds);
return(returnCode == TwReturnCode.Success);
}
