public void CloseSrc()
{
if (this.srcds.Id != IntPtr.Zero)
{
TwUserInterface guif = new TwUserInterface();
TwRC twRC = Twain.DSuserif(this.appid, this.srcds, TwDG.Control, TwDAT.UserInterface, TwMSG.DisableDS, guif);
twRC = Twain.DSMident(this.appid, IntPtr.Zero, TwDG.Control, TwDAT.Identity, TwMSG.CloseDS, this.srcds);
}
}
public void Acquire()
{
this.CloseSrc();
if (this.appid.Id == IntPtr.Zero)
{
this.Init(this.hwnd);
if (this.appid.Id == IntPtr.Zero)
{
return;
}
}
TwRC twRC = Twain.DSMident(this.appid, IntPtr.Zero, TwDG.Control, TwDAT.Identity, TwMSG.OpenDS, this.srcds);
if (twRC == TwRC.Success)
{
TwCapability capa = new TwCapability(TwCap.IPixelType, 0, TwType.UInt16);
twRC = Twain.DScap(this.appid, this.srcds, TwDG.Control, TwDAT.Capability, TwMSG.Set, capa);
if (twRC != TwRC.Success)
{
this.CloseSrc();
}
else
{
TwCapability capa2 = new TwCapability(TwCap.RESOLUTION, 200, TwType.Fix32);
twRC = Twain.DScap(this.appid, this.srcds, TwDG.Control, TwDAT.Capability, TwMSG.Set, capa2);
if (twRC != TwRC.Success)
{
this.CloseSrc();
}
else
{
TwCapability capa3 = new TwCapability(TwCap.XferCount, 1, TwType.Int16);
twRC = Twain.DScap(this.appid, this.srcds, TwDG.Control, TwDAT.Capability, TwMSG.Set, capa3);
if (twRC != TwRC.Success)
{
this.CloseSrc();
}
else
{
TwUserInterface twUserInterface = new TwUserInterface();
twUserInterface.ShowUI = 1;
twUserInterface.ModalUI = 1;
twUserInterface.ParentHand = this.hwnd;
twRC = Twain.DSuserif(this.appid, this.srcds, TwDG.Control, TwDAT.UserInterface, TwMSG.EnableDS, twUserInterface);
if (twRC != TwRC.Success)
{
this.CloseSrc();
}
}
}
}
}
}