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Update image parse code.

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soukoku
2015-02-19 22:30:13 -05:00
parent eef0b9db92
commit 9ba2b0d0e0
10 changed files with 284 additions and 182 deletions
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README.md
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@@ -45,17 +45,18 @@ session.Open();
```
TwainSession class provides many events, but these 2 are the most important
TwainSession class provides many events, but these 3 are the most important
* TransferReady - fired before a transfer occurs. You can cancel the current transfer
or all subsequent transfers using the event object.
* DataTransferred - fired after the transfer has occurred. The data available depends on
what you've specified using the TWAIN API before starting the transfer. If using image
native transfer, the event arg provides a quick GetNativeImage() method to convert the
data to a System.Drawing.Image.
native transfer, the event arg provides a quick GetNativeImageStream() method to convert the
data to a System.IO.Stream for use in .net.
* TransferError - fired when exceptions are encountered during during the transfer phase.
NOTE: do not try to close the source/session in the handler of these 2 events or something
unpredictable will happen. Either let the scan run its course or cancel the scan using the flag
NOTE: do not try to close the source/session in the handler of these 3 events or
unpredictable things will happen. Either let the scan run its course or cancel the scan using the flag
in the TransferReady event arg.
Once you've setup and opened the session, you can get available sources, pick one to use,
@@ -140,7 +141,7 @@ session.Close();
Caveats
--------------------------------------
At the moment the DataTransferredEventArgs only provides conversion routine to
an image when using native transfer.
an image stream when using native transfer.
If other transfer methods are used you'll have to deal with them yourself.
If you just call session.Open() without passing a message loop hook argument, an