IEmptyVolumeCacheCallBack interface (emptyvc.h)

Exposes methods that are used by a disk cleanup handler to communicate with the disk cleanup manager.

Inheritance

The IEmptyVolumeCacheCallBack interface inherits from the IUnknown interface. IEmptyVolumeCacheCallBack also has these types of members:

Methods

The IEmptyVolumeCacheCallBack interface has these methods.

IEmptyVolumeCacheCallBack::PurgeProgress Called periodically by a disk cleanup handler to update the disk cleanup manager on the progress of a purge of deletable files.
IEmptyVolumeCacheCallBack::ScanProgress Called by a disk cleanup handler to update the disk cleanup manager on the progress of a scan for deletable files.

Remarks

A disk cleanup handler uses this interface to report to the disk cleanup manager on the progress either of deleting files or of scanning for deletable files. It also provides a way to query the manager, to find out if the user has canceled the operation. The handler receives a pointer to this interface when the manager calls the IEmptyVolumeCache::GetSpaceUsed or IEmptyVolumeCache::Purge methods.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional, Windows XP [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	emptyvc.h