DevHlp QSysState

DevHlp_QSysState is used by physical device drivers to obtain system status information.

Syntax
There is no direct C calling Sequence.

CallingSequence in Assembler  MOV  EAX, EntityList MOV  EBX, EntityLevel MOV  EDI, pidtid MOV  ESI, pDataBuf MOV  ECX, cbDataBuf MOV  DL,  DevHlp_QSysState CALL [Device_Help] 

Return
Possible errors
 * C' Clear if process killed. AX = zero.
 * 'C" Set if error.
 * 87 ERROR_INVALID_PARAMETER: Invalid parameter specified.
 * 111 ERROR_BUFFER_OVERFLOW: Data buffer is too small to hold all returned information.
 * 115 ERROR_PROTECTION_VIOLATION: Unable to store in to data buffer.
 * 124 ERROR_INVALID_LEVEL: Data buffer is too small to hold all returned information.

Remarks
DevHlp_QSysState is functionally equivalent to DosQuerySysState. See DosQuerySysState for information on the entities that may be requested and the format of the entities returned. This Device Help may be call at Task Time only.