ddlDataErrorCallback() - post Data Error callback

ddlDataErrorCallback() - post Data Error callback ddlDataErrorCallback() - post Data Error callback

Prototype:

   void ddlDataErrorCallback(
      CONTROL *ctl,
      WtCastPtr UserWord,
      DataErrorRtn UserDataError);
 
      typedef void (STDCALL *DataErrorRtn)(
         WtCastPtr UserWord,           /* [IN] UserWord from ddlDataErrorCallback() */
         char *DataErrorMessage);      /* [IN] Data Error message */

Description:

ddlDataErrorCallback() posts a callback to be used with subsequent calls to Thunderbolt API functions. In general, the DataError messages are used to notify the caller of data conversion errors.

The ddlDataErrorCallback() function with a null UserDataError parameter cancels any Data Error callback.

The DataErrorMessage parameter to the callback contains the offending column name; and it may contain the offending table name and record number.

Note that there may be multiple Data Error messages for a single TB API function call.

Values returned in Control Structure:

Control.Ans1	NA
Control.Ans2	Previous DataError Callback pointer (cast as 32 bit int)
Control.Ans3	Previous DataError Callback UserWord (cast as 32 bit int)
Control.Ans2L	Previous DataError Callback pointer (cast as 64 bit int)
Control.Ans3L	Previous DataError Callback UserWord (cast as 64 bit int)