Release 10.1A: OpenEdge Development:
ADM Reference

ManualAddQueryWhere

Manual calls to addQueryWhere. This value is reapplied by the filter when needed to ensure the original query remains intact.

Data type: CHARACTER

Notes:

Read and Write.
Value is pcwhere + CHR(3) + pcbuffer or empty or "?" + CHR(3) + pcandor.
Multiple entries are supported, separated by CHR(4).