NODS – No Datasources found

[DonkeyKong]

Hello,

I have the problem that the program can´t find the datasources that are existing and located on the right place “twain_32/subdir/”. 🙁

I instantiate an Twain object “m_Twain”.

After this i do:

sts = m_Twain.DatParent(TWAIN.DG.CONTROL, TWAIN.MSG.OPENDSM, ref hwnd);

sts = m_Twain.DatIdentity(TWAIN.DG.CONTROL, TWAIN.MSG.GETFIRST, ref default_driver);

After this it returns an NODS(no datasource).
I can´t get the first and the next neither.

sts = m_Twain.DatIdentity(TWAIN.DG.CONTROL, TWAIN.MSG.GETNEXT, ref default_driver);

I know the data sources are in the right directory and accessible, because i can access them with other twaintools, like TWAINCSTools – I can´t figure out why it´s working in the tool and alone it´s dont. 😥

Please help me to find the problem and to get rid of it. 🙂

Best regards,

DonkeyKong

[MarkM]

Make sure that your project is set to create x86 binaries. C# usually outputs AnyCPU by default, which will result in a 64-bit binary image on a 64-bit OS (and a 32-bit on a 32-bit OS). Most TWAIN drivers are still 32-bit…

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