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CreateDirectory The CreateDirectory function creates a new directory. If the underlying file system supports security on files and directories, the function applies a specified security descriptor to the new directory. Note that CreateDirectory does not have a template parameter, while CreateDirectoryEx does.
VB4-32,5,6
Declare Function CreateDirectory Lib "kernel32" Alias "CreateDirectoryA" (ByVal lpPathName As String, lpSecurityAttributes As SECURITY_ATTRIBUTES) As Long |
VB.NET
System.IO.Directory.CreateDirectory |
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Operating Systems Supported |
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Requires Windows NT 3.1 or later; Requires Windows 95 or later |
- lpPathName
Points to a null-terminated string that specifies the path of the directory to be created.
There is a default string size limit for paths of MAX_PATH characters. This limit is related to how the CreateDirectory function parses paths.
Windows NT: An application can transcend this limit and send in paths longer than MAX_PATH characters by calling the wide (W) version of CreateDirectory and prepending “\\?\” to the path. The “\\?\” tells the function to turn off path parsing; it lets paths longer than MAX_PATH be used with CreateDirectoryW. This also works with UNC names. The “\\?\” is ignored as part of the path. For example, “\\?\C:\myworld\private” is seen as “C:\myworld\private”, and “\\?\UNC\bill_g_1\hotstuff\coolapps” is seen as “\\bill_g_1\hotstuff\coolapps”.
- lpSecurityAttributes
Pointer to a SECURITY_ATTRIBUTES structure that determines whether the returned handle can be inherited by child processes. If lpSecurityAttributes is NULL, the handle cannot be inherited.
Windows NT: The lpSecurityDescriptor member of the structure specifies a security descriptor for the new directory. If lpSecurityAttributes is NULL, the directory gets a default security descriptor. The target file system must support security on files and directories for this parameter to have an effect.
Windows 95: The lpSecurityDescriptor member of the structure is ignored. |
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError. |
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