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Add xfermech info to transfer ready event.

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This commit is contained in:
Eugene Wang 2025-02-11 16:40:05 -05:00
parent e107a927b3
commit f205d73f64
2 changed files with 82 additions and 70 deletions
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150
src/NTwain/TransferReadyEventArgs.cs
View File

@ -3,76 +3,88 @@ using System;
namespace NTwain
{
/// <summary>
/// Contains event data when a data transfer is ready to be processed.
/// </summary>
public class TransferReadyEventArgs : EventArgs
{
public TransferReadyEventArgs(int pendingCount, TWEJ endOfJobFlag)
/// <summary>
/// Contains event data when a data transfer is ready to be processed.
/// </summary>
public class TransferReadyEventArgs : EventArgs
{
//_twain = twain;
PendingCount = pendingCount;
EndOfJobFlag = endOfJobFlag;
public TransferReadyEventArgs(TWSX imgXferMech, TWSX audXferMech, int pendingCount, TWEJ endOfJobFlag)
{
ImgXferMech = imgXferMech;
AudXferMech = audXferMech;
//_twain = twain;
PendingCount = pendingCount;
EndOfJobFlag = endOfJobFlag;
}
/// <summary>
/// Gets or sets whether to cancel the capture phase.
/// </summary>
public CancelType Cancel { get; set; }
/// <summary>
/// Gets the end of job flag value for this transfer if job control is enabled.
/// </summary>
public TWEJ EndOfJobFlag { get; }
/// <summary>
/// Gets the current transfer mech if working with images.
/// </summary>
public TWSX ImgXferMech { get; }
/// <summary>
/// Gets the current transfer mech if working with audio.
/// </summary>
public TWSX AudXferMech { get; }
/// <summary>
/// Gets the known pending transfer count. This may not be appilicable
/// for certain scanning modes.
/// </summary>
public int PendingCount { get; private set; }
//TW_IMAGEINFO? _imgInfo;
//private readonly TwainAppSession _twain;
///// <summary>
///// Gets the tentative image information for the current transfer if applicable.
///// This may differ from the final image depending on the transfer mode used (mostly when doing mem xfer).
///// </summary>
//public TW_IMAGEINFO? PendingImageInfo
//{
// get
// {
// // only get it if requested since it could be slow
// if (!_imgInfo.HasValue)
// {
// if (_twain.GetImageInfo(out TW_IMAGEINFO info).RC == TWRC.SUCCESS)
// {
// _imgInfo = info;
// }
// }
// return _imgInfo;
// }
//}
}
/// <summary>
/// Gets or sets whether to cancel the capture phase.
/// </summary>
public CancelType Cancel { get; set; }
/// <summary>
/// Gets the end of job flag value for this transfer if job control is enabled.
/// </summary>
public TWEJ EndOfJobFlag { get; private set; }
/// <summary>
/// Gets the known pending transfer count. This may not be appilicable
/// for certain scanning modes.
/// </summary>
public int PendingCount { get; private set; }
//TW_IMAGEINFO? _imgInfo;
//private readonly TwainAppSession _twain;
///// <summary>
///// Gets the tentative image information for the current transfer if applicable.
///// This may differ from the final image depending on the transfer mode used (mostly when doing mem xfer).
///// </summary>
//public TW_IMAGEINFO? PendingImageInfo
//{
// get
// {
// // only get it if requested since it could be slow
// if (!_imgInfo.HasValue)
// {
// if (_twain.GetImageInfo(out TW_IMAGEINFO info).RC == TWRC.SUCCESS)
// {
// _imgInfo = info;
// }
// }
// return _imgInfo;
// }
//}
}
public enum CancelType
{
/// <summary>
/// No cancel.
/// </summary>
None,
/// <summary>
/// Skips current transfer.
/// </summary>
SkipCurrent,
/// <summary>
/// Stops feeder but continue receiving already scanned images in the app.
/// </summary>
Graceful,
/// <summary>
/// Stops feeder and discard any pending images.
/// </summary>
EndNow
}
public enum CancelType
{
/// <summary>
/// No cancel.
/// </summary>
None,
/// <summary>
/// Skips current transfer.
/// </summary>
SkipCurrent,
/// <summary>
/// Stops feeder but continue receiving already scanned images in the app.
/// </summary>
Graceful,
/// <summary>
/// Stops feeder and discard any pending images.
/// </summary>
EndNow
}
}

2
src/NTwain/TwainAppSession.Xfers.cs
View File

@ -66,7 +66,7 @@ namespace NTwain
{
do
{
var readyArgs = new TransferReadyEventArgs(pending.Count, (TWEJ)pending.EOJ);
var readyArgs = new TransferReadyEventArgs(imgXferMech, audXferMech, pending.Count, (TWEJ)pending.EOJ);
try
{
TransferReady?.Invoke(this, readyArgs);