C# Signature:

[DllImport("advapi32.dll", SetLastError=true)]
static extern TODO BuildExplicitAccessWithName(TODO);

VB Signature:

Declare Function BuildExplicitAccessWithName Lib "advapi32.dll" ( _
    ByRef pExplicitAccess As EXPLICIT_ACCESS, _
    ByVal pTrusteeName As String, _
    ByVal AccessPermissions As Integer, _
    ByVal AccessMode As Short, _
    ByVal Inheritance As Integer)

User-Defined Types:

    <StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Auto, Pack:=4)> _
    Public Structure TRUSTEE
    Dim pMultipleTrustee As Integer ' must be null, so no need for IntPtr
    Dim MultipleTrusteeOperation As Integer
    Dim TrusteeForm As Integer
    Dim TrusteeType As Integer
    Dim ptstrName As String
    End Structure

    <StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Auto, Pack:=4)> _
    Public Structure EXPLICIT_ACCESS
    Dim grfAccessPermissions As Integer
    Dim grfAccessMode As Integer
    Dim grfInheritance As Integer
    Dim Trustee As TRUSTEE
    End Structure

Notes:

Definition from the API

    'VOID BuildExplicitAccessWithName(
    '  PEXPLICIT_ACCESS pExplicitAccess,
    '  LPTSTR pTrusteeName,
    '  DWORD AccessPermissions,
    '  ACCESS_MODE AccessMode,
    '  DWORD Inheritance
    ');

Tips & Tricks:

Please add some!

Sample Code:

    Dim pSecDesc, pOldDACL As IntPtr
    Dim ea As EXPLICIT_ACCESS
    Dim Win32Error As Win32Exception
    Dim ret, iPerm As Integer

    ' get the Security Descriptor and DACL
    ret = GetNamedSecurityInfo(strPath, SE_FILE_OBJECT, DACL_SECURITY_INFORMATION, Nothing, Nothing, pOldDACL, Nothing, pSecDesc)
    If ret <> 0 Then
        Win32Error = New Win32Exception(ret)
        Throw New Exception(Win32Error.Message)
    End If

    ' build an explicit access structure
    BuildExplicitAccessWithName(ea, strUserName, iPerm, SET_ACCESS, CONTAINER_INHERIT_ACE Or OBJECT_INHERIT_ACE)

Alternative Managed API:

Do you know one? Please contribute it!

Please edit this page!

Do you have...

• helpful tips or sample code to share for using this API in managed code?
• corrections to the existing content?
• variations of the signature you want to share?
• additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).