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tester crashes on close if twain not initialized.

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This commit is contained in:
soukoku 2014-06-26 06:50:48 -04:00
parent e639ca5429
commit f2e3196612
1 changed files with 20 additions and 20 deletions
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40
Tests/Tester.Winform/TestForm.cs
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@ -41,13 +41,16 @@ namespace Tester.Winform
protected override void OnFormClosing(FormClosingEventArgs e)
{
if (e.CloseReason == CloseReason.UserClosing && _twain.State > 4)
if (_twain != null)
{
e.Cancel = true;
}
else
{
CleanupTwain();
if (e.CloseReason == CloseReason.UserClosing && _twain.State > 4)
{
e.Cancel = true;
}
else
{
CleanupTwain();
}
}
base.OnFormClosing(e);
}
@ -105,22 +108,19 @@ namespace Tester.Winform
private void CleanupTwain()
{
if (_twain != null)
if (_twain.State == 4)
{
if (_twain.State == 4)
{
_twain.CurrentSource.Close();
}
if (_twain.State == 3)
{
_twain.Close();
}
_twain.CurrentSource.Close();
}
if (_twain.State == 3)
{
_twain.Close();
}
if (_twain.State > 2)
{
// normal close down didn't work, do hard kill
_twain.ForceStepDown(2);
}
if (_twain.State > 2)
{
// normal close down didn't work, do hard kill
_twain.ForceStepDown(2);
}
}