ihuBrowseQueryModifiers

Use the ihuBrowseQueryModifiers function to return a list of all supported query modifiers from the Historian Server. Various versions of the Historian Data Archiver may support different sets of modifiers.

Prototype

ihuBrowseQueryModifiers (
  long serverhandle,
  IHU_QUERY_MODIFIER **QueryModifiers,
  int *NumberOfModifiers
);

Remarks

The NumberOfModifiers parameter returns a total count of modifiers. The QueryModifiers parameter returns a list of supported query modifiers.

Returns

• ihuSTATUS_OK
• ihuSTATUS_INVALID_PARAMETER