IError_KC Interface
- GetError
- GetErrorEx
- GetCount
The interface returns string describing the last error and manages access to array of errors happened in the latest call to a DG Kernel
method. The array is cleared on the start of most methods of any DG Kernel
interface. Note that a single call can generate several errors form different
parts of DG Kernel implementation. Use GetCount method to obtain size of the
error array.
Note that not all methods report errors via the error array, so this
functionality can not replace exception and error return handling. This
functionality mostly used when there is clear explanation for a problem or hint
to avoid it.
IError_KC can be queried from IModel interface
via: DG Kernel > GetModel() > IModel > IError_KC
See also Interface List
HRESULT GetError(BSTR *err)
Parameters
err - [out, retval] Text of the last
error
-
- Remarks:
Returns the last error.
HRESULT GetErrorEx(int errorNo, BSTR *err)
Parameters
errorNo - [in]
0-based index of the error to retrieve. 0 is the latest error
err - [out, retval] Text of the
error errorNo.
-
- Remarks:
Returns the error errorNo. errorNo mist be less
than count returned by the GetCount method below.
HRESULT GetCount(int *count)
Parameters
count - [out, retval] count of
current error
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