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IOleInPlaceSite::OnInPlaceActivate method (oleidl.h)

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Notifies the container that one of its objects is being activated in place.

Syntax

HRESULT OnInPlaceActivate();

Return value

This method returns S_OK if the container allows the in-place activation. Other possible return values include the following.

Return code Description
E_UNEXPECTED
 An unexpected error has occurred.

Remarks

Notes to Callers

OnInPlaceActivate is called by the active embedded object when it is activated in-place for the first time. The container should note that the object is becoming active.

Notes to Implementers

A container that supports linking to embedded objects must properly manage the running of its in-place objects when they are UI-inactive and running in the hidden state. To reactivate the in-place object quickly, a container should not call IOleObject::Close until the container's IOleInPlaceSite::DeactivateAndUndo method is called. To help protect against the object being left in an unstable state if a linking client updates silently, the container should call OleLockRunning to lock the object in the running state. This prevents the hidden in-place object from shutting down before it can be saved in its container.

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 oleidl.h

See also

IOleInPlaceSite