NewDuplicateL not supported?

[pixsta]

Hi,

When I try to call "NewDuplicateL(MCameraObserver2)" or "NewDuplicate2L(MCameraObserver2)" I get an error like "unable to execute file due to security reasons". Capabilities (UserEnvironment) are set properly - I also tested it with other capabilities.

Is NewDuplicateL indeed not supported? (I am testing on a Nokia 5800 device)

g.

[janza]

Where are you getting the camera handle that you give to NewDuplicateL? You would not be doing anything nasty like trying to guess one...?

[pixsta]

The camera handle is passed from the CameraWrapper (provided by Nokia).

[janza]

There are some restrictions on which Duplicate function you can use. In case the original CCamera instance is created using New2L you should use NewDuplicate2L and if original instance is created using NewL then you should use NewDuplicateL to create duplicate.

What is the error exact code you receive from NewDuplicateL/NewDuplicate2L?

[pixsta]

I have tried both Duplicate and Duplicate2L methods - both fail with the error message "unable to execute file due to security reasons".
The error code raised is "-8".

[janza]

-8 = KErrBadHandle

Could mean that the original client used New2L and you are using NewDuplicateL or the original client used NewL and you are using NewDuplicate2L. Same version of Duplicate and NewL methods should be used.

Other possibility is that the original CCamera instance has been deleted before you try to duplicate.

Or possibly you are trying to use 0 or negative handle (programming error in your code).

Hope this helps...

[pixsta]

Thanks for your help.
I have created my own "wrapper" now which works. Regarding the duplicate problem I have tried all combination, all without success.