CODEWITHSUNDEEP
c#.netprintingopos
SHINHAN
SHINHAN

Reputation: 745

OPOS and Microsoft .NET, unable to run sample application

How can I fix this error?

enter image description here

Source for the test application

Am i missing something?

Upvotes: 0

Views: 2722

Answers (3)

malzki
malzki

Reputation: 53

I also encountered this problem in the MCS sample application. I fixed this by registering the CCO (i.e. regsvr32 OPOSPOSPrinter.ocx). Make sure that the version of OPOSPOSPrinter.ocx is greater than or equal to the .NET assembly. In the sample application, I think the .NET assemblies are version for 1.12.

Upvotes: 1

Steve
Steve

Reputation: 216333

The error seems caused by missing information in the registry to resolve the interface for the library that control the POS device.
Usually these COM libraries have a setup program that takes care of the needed registration.
In lack of this, you could try to register manually the libraries with 

regsvr32 libraryname.dll

Where, in place of libraryname.dll, write the effective name of yours dll.
And remember to do this also on the deployment machines.

Of course, as pointed by JamieHennerley in its answer, the Platform target of your application should match the same bitness of the library

Upvotes: 1

JayH
JayH

Reputation: 194

In Visual Studio - Project Properties - Build tab - platform target =X86

That should hopefully fix the error

Upvotes: 0

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