coml2api.h header

This header is used by Structured Storage. For more information, see:

• Structured Storage

coml2api.h contains the following programming interfaces:

Functions

CreateILockBytesOnHGlobal Creates a byte array object that uses an HGLOBAL memory handle to store the bytes intended for in-memory storage of a compound file.
FmtIdToPropStgName Converts a property set format identifier (FMTID) to its storage or stream name.
GetConvertStg The GetConvertStg function returns the current value of the convert bit for the specified storage object.
GetHGlobalFromILockBytes The GetHGlobalFromILockBytes function retrieves a global memory handle to a byte array object created using the CreateILockBytesOnHGlobal function.
PropStgNameToFmtId Converts a property set storage or stream name to its format identifier.
ReadClassStg The ReadClassStg function reads the CLSID previously written to a storage object with the WriteClassStg function.
ReadClassStm Reads the CLSID previously written to a stream object with the WriteClassStm function.
StgCreateDocfile Creates a new compound file storage object using the COM-provided compound file implementation for the IStorage interface.
StgCreateDocfileOnILockBytes Creates and opens a new compound file storage object on top of a byte-array object provided by the caller.
StgCreatePropSetStg Creates a property set storage object from a specified storage object.
StgCreatePropStg Creates and opens a property set in a specified storage or stream object.
StgCreateStorageEx Creates a new storage object using a provided implementation for the IStorage or IPropertySetStorage interfaces.
StgIsStorageFile The StgIsStorageFile function indicates whether a particular disk file contains a storage object.
StgIsStorageILockBytes The StgIsStorageILockBytes function indicates whether the specified byte array contains a storage object.
StgOpenPropStg Opens a specified property set in a specified storage or stream object.
StgOpenStorage Opens an existing root storage object in the file system.
StgOpenStorageEx Opens an existing root storage object in the file system. Use this function to open Compound Files and regular files.
StgOpenStorageOnILockBytes The StgOpenStorageOnILockBytes function opens an existing storage object that does not reside in a disk file, but instead has an underlying byte array provided by the caller.
StgSetTimes The StgSetTimes function sets the creation, access, and modification times of the indicated file, if supported by the underlying file system.
WriteClassStg The WriteClassStg function stores the specified class identifier (CLSID) in a storage object.
WriteClassStm The WriteClassStm function stores the specified CLSID in the stream.

Structures

STGOPTIONS Specifies features of the storage object, such as sector size, in the StgCreateStorageEx and StgOpenStorageEx functions.