Exception of type 'VO.WCError' was thrown

[JohnBonnett88]

Hi All,

I have this rather generic error when my X# code, ported from VO, tries to create a SplitWindow.

Here is the top bit of the call stack leading to the error and back to my code.

XSharp.Error
HResult=0x80131500
Message=Exception of type 'VO.WCError' was thrown.
Source=XSharp.RT
StackTrace:
__LOADSPLITWINDOWDLL (Line: 0)
__SPLITVIEW:.CTOR (Line: 0)
RUNTIMEMETHODHANDLE:INVOKEMETHOD (Line: 0)
RUNTIMECONSTRUCTORINFO:INVOKE (Line: 0)
_CREATEINSTANCE (Line: 0)
CREATEINSTANCE (Line: 0)
SPLITWINDOW:.CTOR (Line: 0)
MANAGEORDERS:.CTOR (Line: 2222)

My code at this point looks like this:

// initialize the window
SUPER(oOwner, TRUE, FALSE, SPLIT_VERTALIGN)

In this case SUPER is a VO.SplitWindow that it is trying to construct. The parameters seem sensible as far as I can tell using the Object Browser.

I have looked at the details of the exception and the only properties that may provide a clue seem to be:

Description "Cannot load library: CATO3SPL.DLL" String
GenCodeText "Unknown GenCode" String

I did find that CATO3SPL.DLL among the X# runtime code but it does not seem to be something I can use in .NET.

Any ideas on what I can try?

Best Regards,
John Bonnett

[Chris]

HI John,

You just need to copy all the CATO*.dll files from your VOBin folder, to the folder where you have your X# exe. You must not need to add them as references (as they are regular windows dlls, not .Net ones), just have them there and will be automatically loaded when needed.

[JohnBonnett88]

Thanks again Chris,
You really are a helpful guy! I tried adding that DLL as a reference and it told me it was the wrong sort. I had forgotten it could be an old DLL loaded manually. Making those CATO*.DLLs available got things going for me and resolved quite a few issues.
Best Regards,
John