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Changed ManualResetEventSlim to TaskCompletionSource in pump thread attach.

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This commit is contained in:
Eugene Wang 2023-04-14 07:13:07 -04:00
parent 54d73eb42c
commit 0e5aef00e5
1 changed files with 18 additions and 8 deletions
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26
src/NTwain/MessagePumpThread.cs
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@ -38,22 +38,32 @@ namespace NTwain
while (_dummyForm == null || !_dummyForm.IsHandleCreated)
{
await Task.Delay(100);
await Task.Delay(50);
}
STS sts = default;
ManualResetEventSlim evt = new();
TaskCompletionSource<bool> tcs = new();
_dummyForm.BeginInvoke(() =>
{
sts = twain.OpenDSM(_dummyForm.Handle, SynchronizationContext.Current!);
if (sts.IsSuccess)
try
{
twain.AddWinformFilter();
_twain = twain;
sts = twain.OpenDSM(_dummyForm.Handle, SynchronizationContext.Current!);
if (sts.IsSuccess)
{
twain.AddWinformFilter();
_twain = twain;
}
else
{
_dummyForm.Close();
}
}
finally
{
tcs.TrySetResult(true);
}
evt.Set();
});
evt.Wait();
await tcs.Task;
return sts;
}