mirror of
https://github.com/soukoku/ntwain.git
synced 2025-05-04 04:57:46 +08:00
69 lines
3.1 KiB
C#
69 lines
3.1 KiB
C#
// The MIT License (MIT)
|
||
// Copyright (c) 2013 Yin-Chun Wang
|
||
//
|
||
// Permission is hereby granted, free of charge, to any person obtaining a
|
||
// copy of this software and associated documentation files (the "Software"),
|
||
// to deal in the Software without restriction, including without limitation
|
||
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||
// and/or sell copies of the Software, and to permit persons to whom the
|
||
// Software is furnished to do so, subject to the following conditions:
|
||
//
|
||
// The above copyright notice and this permission notice shall be included
|
||
// in all copies or substantial portions of the Software.
|
||
//
|
||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
|
||
// OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||
//
|
||
using System;
|
||
using NTwain.Data;
|
||
using NTwain.Values;
|
||
using System.Runtime.InteropServices;
|
||
|
||
namespace NTwain.Triplets
|
||
{
|
||
sealed class Parent : OpBase
|
||
{
|
||
internal Parent(TwainSession session) : base(session) { }
|
||
|
||
/// <summary>
|
||
/// When the application has closed all the Sources it had previously opened, and is finished with
|
||
/// the Source Manager (the application plans to initiate no other TWAIN sessions), it must close
|
||
/// the Source Manager.
|
||
/// </summary>
|
||
/// <param name="handle">The handle. On Windows = points to the window handle (hWnd) that will act as the Source’s
|
||
/// "parent". On Macintosh = should be a NULL value.</param>
|
||
/// <returns></returns>
|
||
public ReturnCode CloseDsm(ref IntPtr handle)
|
||
{
|
||
Session.VerifyState(3, 3, DataGroups.Control, DataArgumentType.Parent, Message.CloseDsm);
|
||
var rc = PInvoke.DsmEntry(Session.AppId, null, DataGroups.Control, DataArgumentType.Parent, Message.CloseDsm, ref handle);
|
||
if (rc == ReturnCode.Success)
|
||
{
|
||
Session.State = 2;
|
||
}
|
||
return rc;
|
||
}
|
||
|
||
/// <summary>
|
||
/// Causes the Source Manager to initialize itself. This operation must be executed before any other
|
||
/// operations will be accepted by the Source Manager.
|
||
/// </summary>
|
||
/// <param name="handle">The handle. On Windows = points to the window handle (hWnd) that will act as the Source’s
|
||
/// "parent". On Macintosh = should be a NULL value.</param>
|
||
/// <returns></returns>
|
||
public ReturnCode OpenDsm(ref IntPtr handle)
|
||
{
|
||
Session.VerifyState(1, 2, DataGroups.Control, DataArgumentType.Parent, Message.OpenDsm);
|
||
var rc = PInvoke.DsmEntry(Session.AppId, null, DataGroups.Control, DataArgumentType.Parent, Message.OpenDsm, ref handle);
|
||
if (rc == ReturnCode.Success)
|
||
{
|
||
Session.State = 3;
|
||
}
|
||
return rc;
|
||
}
|
||
}
|
||
} |