Use FNC_SetNullBitVector or FNC_SetNullBitVectorByElemIndex to set the bits of nullBitVec that correspond to the specified range of elements. Set the relevant bits to the following values:
- 1 to indicate that the corresponding element is present and not NULL.
- 0 to indicate that the corresponding element is present but is set to NULL.
For more information, see FNC_SetNullBitVector, FNC_SetNullBitVectorByElemIndex, and Checking and Setting the NullBitVector.