How to catch event for scanner button on Windows 7 - WIA 2.0

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Hello,

I would like to ask you, how to catch scanner button event by WIA 2.0 on Windows 7.

This code not working:

C#

Device device;
DeviceManagerClass dManager = new DeviceManagerClass();
CommonDialogClass cdlg = new CommonDialogClass();
device = cdlg.ShowSelectDevice(WiaDeviceType.ScannerDeviceType, false, false);
dManager.RegisterEvent(EventID.wiaEventScanImage, device.DeviceID);
dManager.OnEvent += new _IDeviceManagerEvents_OnEventEventHandler(device_OnEvent);

Maybe, there is problem with scanner and win 7. I use HP DeskJet F2180. And if I dont have install HP softwares (All-in-one), pushing scanner button do nothing - windows 7 dont know that button was pressed. With installed HP softwares scanner button execute some HP scaner software, but I want catch this event in my aplication.

I had older HP scanner and when I pushed scanner button, on WinXP was showed box with programs (these programs can be changed by windows registry) or my program handle event. But Window 7 do/show nothing.

Thanks for any reply.

Pav.

Posted 8-Feb-11 1:59am

rrrd

Updated 8-Feb-11 2:04am

Prerak Patel

v3

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Software_Magic 20-Apr-12 18:52pm

I have same issue. I think this not working by a normal way. I think usb drivers and app of HP is dedicated to force all function of All in One devices only with HP software. I think also for solve this issue is needed to catch event not by WIA libraries but with USB control. I don't try any solution, this is only a mind. This is only way for solve issue (I think). Scuse me for my bad english.

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#realJSOP · Answer 1 · 2011-02-08T02:31:00

Solution 1

Have you been to this web site yet?

http://msdn.microsoft.com/en-us/library/ms630368(v=vs.85).aspx[^]

At the bottom of the page, there's a link to sample code.

I hate to do it, but here's a link to a similar question (regarding Vista, but Win7 is just Vista in a better-fitting suit) on another site:

http://stackoverflow.com/questions/8966/using-c-wia-version-2-0-on-vista-to-scan[^]

If neirther of those links help, google returned 12,000 results for "c# WIA 2.0".

Posted 8-Feb-11 2:31am

#realJSOP

Updated 8-Feb-11 2:36am

v3

Comments

rrrd 8-Feb-11 9:09am

Thanks for reply.
Of course. I red msdn, but most of codes is in C++ and in WIA automation layer - there is similar code what I posted, but not working on Windows 7 with HP.
Google have many results, I red many of them, but only few is about event handling on C# for WIA and these solutions are for XP or not working.
My problem is not "how to work with WIA in c#", I have already my aplication and it can scan and change properties of scanner. Only catching event (button was pressed) is problem and I cant find working solution for Windows 7.
Pav.