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To create a page in a module other than advapi32, prefix the name with the module name and a period.
Declare Function CredWriteW Lib "advapi32.dll" ( _
ByRef crede As Credential, _
ByVal flags As UInteger _
) As Boolean
VB.NET type:
<Runtime.InteropServices.StructLayout(Runtime.InteropServices.LayoutKind.Sequential, CharSet:=Runtime.InteropServices.CharSet.Unicode)> _
Structure Credential
Dim Flags As UInteger
Dim Type As UInteger
Dim TargetName$
Dim Comment$
Dim LastWritten As System.Runtime.InteropServices.ComTypes.FILETIME
Dim CredentialBlobSize As UInteger
Dim CredentialBlob As IntPtr
Dim Persist As UInteger
Dim AttributeCount As UInteger
Dim Attributes As IntPtr
Dim TargetAlias$
Dim UserName$
End Structure
[StructLayout(LayoutKind.Sequential, CharSet=CharSet.Unicode)]
private struct Credential
{
public UInt32 flags;
public UInt32 type;
public string targetName;
public string comment;
//public System.Runtime.InteropServices.FILETIME lastWritten; // .NET 1.1
public System.Runtime.InteropServices.ComTypes.FILETIME lastWritten; // .NET 2.0
public UInt32 credentialBlobSize;
public IntPtr credentialBlob;
public UInt32 persist;
public UInt32 attributeCount;
public IntPtr credAttribute;
public string targetAlias;
public string userName;
}
Notes:
If it's legal for PInvoke.net to swipe Microsoft's own code, the stuff here is even better:
http://blogs.msdn.com/peerchan/pages/487834.aspx
The stuff on this page about needing custom marshaling are just wrong.
Tips & Tricks:
Needs extensive custom marshaling code. See CredRead to for an example on the custom marshaling code.
Sample Code:
VB.NET
Dim cred As New Credential
Dim strKey$ = "a3b9236"
[StructLayout(LayoutKind.Sequential, CharSet=CharSet.Unicode)]
public struct Credential
{
public UInt32 flags;
public UInt32 type;
public IntPtr targetName;
public IntPtr comment;
public System.Runtime.InteropServices.ComTypes.FILETIME lastWritten;
public UInt32 credentialBlobSize;
public IntPtr credentialBlob;
public UInt32 persist;
public UInt32 attributeCount;
public IntPtr Attributes;
public IntPtr targetAlias;
public IntPtr userName;
}
"@
Add-Type -MemberDefinition $sig -Namespace "ADVAPI32" -Name 'Util'
The mechanism provided by the CLR that enables managed code to call static DLL exports.k
10/27/2022 9:24:28 PM - 114.37.143.20
Read the credential (generic, domain, etc) from the windows key ring.
6/7/2023 5:14:00 AM - -194.146.189.99
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