IVdsMaintenance::PulseMaintenance method (vdshwprv.h)
Performs the specified operation a specified number of times.
HRESULT PulseMaintenance( [in] VDS_MAINTENANCE_OPERATION operation, [in] ULONG ulCount );
A maintenance operation enumerated by VDS_MAINTENANCE_OPERATION.
The number of times to perform the operation.
This method can return standard HRESULT values, such as E_INVALIDARG or E_OUTOFMEMORY, and VDS-specific return values. It can also return converted system error codes using the HRESULT_FROM_WIN32 macro. Errors can originate from VDS itself or from the underlying VDS provider that is being used. Possible return values include the following.
||The specified operation is not running; the method does nothing.|
||This return value signals a software or communication problem inside a provider that caches information about the array. Use the IVdsHwProvider::Reenumerate method followed by the IVdsHwProvider::Refresh method to restore the cache.|
||The subsystem object is no longer present.|
||The subsystem is in a failed state, and is unable to perform the requested operation.|
||Another operation is in progress; this operation cannot proceed until the previous operation or operations are complete.|
||This operation or combination of parameters is not supported by this provider.|
If the operation is already running, this method causes it to pulse the specified number of times and then stop. The intervals at which the operation pulses is defined by the provider. This method cannot be used with the SpinDown or SpinUp operations.
|Minimum supported client||Windows Vista [desktop apps only]|
|Minimum supported server||Windows Server 2003 [desktop apps only]|