PdhCollectQueryData (VB)
The Visual
Basic PdhCollectQueryData
function collects the current raw value of each counter in the query referenced
by the QueryHandle parameter and updates the internal buffers of each
counter object.
PdhCollectQueryData(
|
ByVal QueryHandle as Long) |
|
|
as Long |
|
Parameters
QueryHandle
The ID of the
query to update. This must be a value returned by a call to PdhOpenQuery.
Return Values
If the
function succeeds, it returns a Long integer equal to ERROR_SUCCESS.
Note that the function can return successfully, but some or all counters in the
query may not have been updated.
If the function
fails, the return value is a PDH error status defined in PDHDEFS.TXT. The
following are possible error values:
PDH_INVALID_HANDLE
The query
handle is not valid.
PDH_NO_DATA
The query
does not have any counters defined yet.