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Gets the file Id of the encrypted block map file.
Syntax
HRESULT GetId(
  [out, retval] UINT64 *fileId
);
Parameters
- fileId [out, retval]
 The Id of the encrypted block map file.
Return value
If the method succeeds, it returns S_OK. Otherwise, it returns an error code.
Requirements
| Minimum supported client | Windows 10, version 1607 [desktop apps only] | 
| Minimum supported server | Windows Server 2016 [desktop apps only] | 
| Header | AppxPackaging.h | 
| IDL | AppxPackaging.idl |