Call this member function to determine whether the object associated with the CSingleLock object is nonsignaled (unavailable).
BOOL IsLocked( );
| Header file: | Afxmt.h | 
| Platforms: | |
| Versions: | 1.0 and later | 
| Complete documentation: | Visual C++ documentation | 
CSingleLock Overview, CSingleLock Member Functions, Synchronization Support