Есть ли StgOpenStorageEx в реализации WinAPI Delphi? [D6, Win2k]
Damage © (2002-11-07 00:08:00)
Понадобилось использовать StgOpenStorageEx, и чего-то не смог
найти. Нашел только StgOpenStorage в ole2.dcu. Это аналог, или
что-то другое? И можно ли ее использовать для получения свойств
файла?
Сахаров Сергей (2002-11-07 12:36:00) [1]
StgOpenStorageEx реализована только начиная с Win2k и
соответственно в Delphi не прописана.
Так что ручками прописывать придётся.
Немного из MSDN:
To get a pointer to the compound file implementation of
IPropertySetStorage, specify the header-defined name for the
identifier IID_IStorage as the riid parameter, or use the
StgCreateStorageEx or StgOpenStorageEx functions. In both cases,
specify STGFMT_STORAGE as the stgfmt parameter. (STGFMT_ANY can
alternatively be specified in the case of StgOpenStorageEx.) Also,
specify the header-defined name for the interface identifier (IID)
IID_IPropertySetStorage as the riid parameter. Both functions
supply a pointer to the object"s IPropertySetStorage interface.
An alternative way to get a pointer to the compound file
implementation is to specify the header-defined name for the
identifier IID_IStorage as the riid parameter, or to use the
StgCreateDocfile or StgOpenStorage functions. This will supply a
pointer to the object"s IStorage interface. When you want to deal
with persistent property sets, call IStorage::QueryInterface for
the IPropertySetStorage interface.
When to Use
Call the methods of IPropertySetStorage to create, open, or
delete property sets in the current compound-file property set
storage. There is also a method, IPropertySetStorage::Enum, that
supplies a pointer to an enumerator that can be used to enumerate
the property sets in the storage.
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