Populating Array Difficulty

Code:

---

I have built a program utilizing ADO to pull data from an Access Database.  I am having problems taking this data which is formated as a _variant_t data type to a floating point array in C++.  The following is the initial format of the array and the process that is attempting to populate this array.  Can someone help me with a good source to learn about these conversions?  Secondly, can someone help me with the proper code for the array so that it can be populated?  At the bottom is the error message I am getting.

const int arraySize = 5000;
        _variant_t OpenArr[arraySize];

ADODB::_RecordsetPtr  recOpen = NULL;

while(!recOpen->EOFile)
            {
                record++;
                Open = pOpenField->Value;
                Open.ChangeType(VT_R4);
                printf("Data_Open:  %4.5f\n", Open.fltVal);
                printf("Record: %d\n", record);
                OpenArr[record]=recOpen->GetRows(-1,0);
                recOpen->MoveNext(  );
                }

Data_Open:  1.41283
Record: 1
Error
        Code = 800a0d5d
        Code meaning = U
        Source = ADODB.Recordset
        Description = Application uses a value of the wrong type for the current operation.

---

The above posting summary should read:

I have built a program utilizing ADO to pull data from an Access Database. I am having problems taking this data which is formated as a _variant_t data type to a floating point array in C++. The following is the initial format of the array and the process that is attempting to populate this array. Can someone help me with a good source to learn about these conversions? Secondly, can someone help me with the proper code for the array so that it can be populated? At the bottom is the error message I am getting.