StgIsStorageILockBytes

Indicates whether the specified byte array contains a storage object.

HRESULT StgIsStorageILockBytes(

ILockBytes * plkbyt	//Points to the byte array to be examined
);

Parameter
plkbyt

Points to the byte array to be examined.

Return Values
S_OK

Indicates the specified byte array contains a storage object.

S_FALSE

Indicates the specified byte array does not contain a storage object.

File system errors.

ILockBytes interface error return values.

Comments
At the beginning of the ILockBytes byte array underlying a storage object is a signature distinguishing an IStorage object from other file formats. The StgIsStorageILockBytes function is useful to applications whose documents use an ILockBytes byte array format that might or might not use storage objects.