PresentationLockingBehavior

PresentationLockingBehavior enum

Represents the behavior regarding treating the IPresentation source (file or System::IO::Stream) while loading and working with an instance of IPresentation.

enum class PresentationLockingBehavior

Values

NameValueDescription
LoadAndRelease0The source will be locked only for a time of IPresentation constructor execution.
KeepLocked1The source will be locked for a whole lifetime of IPresentation instance, until it will be disposed.

Remarks

The source is the parameter passed to the IPresentation constructor. In the example below, the source is the "pres.pptx" file:

auto loadOptions = MakeObject<LoadOptions>();
loadOptions->get_BlobManagementOptions()->set_PresentationLockingBehavior(PresentationLockingBehavior::KeepLocked);
{
    auto pres = MakeObject<Presentation>(u"pres.pptx", loadOptions);
}

For this example, the source ("pres.pptx" file) will be locked for a IPresentation instance lifetime, i.e. can’t be changed or deleted by the other process.

See Also

LoadingStreamBehavior ResourceLoadingAction