This function is called by the file system driver (FSD) manager to create a new directory in an installable file system. The application originally calls the corresponding standard Win32 function CreateDirectory.

BOOL MyFSD_CreateDirectoryW( 
PVOLUME pVolume, 
PCWSTR pwsPathName, 
PSECURITY_ATTRIBUTES pSecurityAttributes); 


  • pVolume
    Pointer to the value that the file system driver (FSD) defines in its DLL and passes to the FSDMGR_RegisterVolume function when registering the volume. The definition of pVolume can point to private structures.
  • pwsPathName
    [in] Pointer to a null-terminated string that specifies the path of the directory to be created.
  • pSecurityAttributes
    [in] Ignored; set to NULL.

Return Values

Nonzero indicates success. Zero indicates failure. To get extended error information, call GetLastError.


An FSD exports this function if it wants to support the CreateDirectory function. All FSD functions can be called reentryly, therefore, FSD developers must take this into account when developing an FSD.

The Fsdmgr component is a dynamic-link library (DLL) that manages all operating system interaction with installable files systems. Each installable file system requires an FSD, which is a DLL that exports an API needed to support an installable file system. The name of the DLL for the FSD and the names of the functions it exports start with the name of the associated installable file system. For example, if the name of file system is MyFSD, then its DLL is MyFSD.dll and its exported functions are prefaced with MyFSD_*.

Fsdmgr provides service functions to FSDs. The FSDMGR_RegisterVolume, FSDMGR_CreateFileHandle, and FSDMGR_CreateSearchHandle functions record a DWORD of volume-specific data the FSD needs to keep associated with volume. This volume-specific data is passed as the first parameter of these three functions.

Applications that access an installable file system use standard Win32 functions. For example, when an application wants to create a folder on a device that contains an installable file system, it calls CreateDirectory. Fsdmgr recognizes that the path is to a device containing an installable file system and calls the appropriate function, which in the case of the MyFSD file system is MyFSD_CreateDirectoryW. That is, the application calls CreateDirectory, causing Fsdmgr to call **MyFSD_CreateDirectoryW.


Runs on Versions Defined in Include Link to
Windows CE OS 2.10 and later Fsdmgr.h    

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

CreateDirectory, GetLastError, FSDMGR_CreateFileHandle, FSDMGR_CreateSearchHandle, FSDMGR_RegisterVolume, MyFSD_CreateDirectoryW, MyFSD_RemoveDirectoryW

 Last updated on Tuesday, July 13, 2004

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