IRunningObjectTable::GetTimeOfLastChange method (objidl.h)

Article
10/13/2021

Retrieves the time that an object was last modified.

Syntax

HRESULT GetTimeOfLastChange(
  [in]  IMoniker *pmkObjectName,
  [out] FILETIME *pfiletime
);

Parameters

[in] pmkObjectName

A pointer to the IMoniker interface on the moniker.

[out] pfiletime

A pointer to a FILETIME structure that receives the object's last change time.

Return value

This method can return the following values.

Return code	Description
S_OK	The method completed successfully.
S_FALSE	There is no entry for pmkObjectName in the ROT, or that the object it identifies is no longer running (in which case, the entry is revoked).

Remarks

This method returns the change time that was last reported for this object by a call to IRunningObjectTable::NoteChangeTime. If NoteChangeTime has not been called previously, the method returns the time that was recorded when the object was registered.

This method is provided to enable checking whether a connection between two objects (represented by one object holding a moniker that identifies the other) is up-to-date. For example, if one object is holding cached information about the other object, this method can be used to check whether the object has been modified since the cache was last updated. See IMoniker::GetTimeOfLastChange.

Notes to Callers

Generally, you call GetTimeOfLastChange only if you are writing your own moniker class (that is, implementing the IMoniker interface). You typically call this method from your implementation of IMoniker::GetTimeOfLastChange. However, you should do so only if the pmkToLeft parameter of IMoniker::GetTimeOfLastChange is NULL. Otherwise, you should call IMoniker::GetTimeOfLastChange on your pmkToLeft parameter instead.

Requirements

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

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