RtlIsCloudFilesPlaceholder function

The RtlIsCloudFilesPlaceholder routine determines if a file or a directory is a CloudFiles placeholder, based on the FileAttributes and ReparseTag values of the file. These values can be obtained by listing the directory containing the file or by directly querying FileAttributeTagInfo on the file.


NTSYSAPI BOOLEAN RtlIsCloudFilesPlaceholder(
  ULONG FileAttributes,
  ULONG ReparseTag



Specifies the attributes of a file or directory.


The ReparseTag or EaSize of a file or directory.

Return Value

This function returns TRUE if the file or directory is a CloudFiles partial or full placeholder. It returns FALSE if either the file or directory is not a CloudFiles placeholder.


Windows version Available starting with Windows 10, version 1709.
Target Platform Windows
Header ntifs.h (include Ntifs.h)
DLL Ntdll.dll

See Also