EventWaitHandleRights 列舉
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
指定可套用至具名系統事件物件的存取控制 (Access Control) 權限。
此列舉支援其成員值的位元組合。
public enum class EventWaitHandleRights[System.Flags]
public enum EventWaitHandleRights[System.Flags]
[System.Security.SecurityCritical]
public enum EventWaitHandleRights[<System.Flags>]
type EventWaitHandleRights = [<System.Flags>]
[<System.Security.SecurityCritical>]
type EventWaitHandleRights = Public Enum EventWaitHandleRights- 繼承
- 屬性
欄位
| ChangePermissions | 262144 | 變更與具名事件相關聯之安全性和稽核規則的權限。 |
| Delete | 65536 | 刪除具名事件的權限。 |
| FullControl | 2031619 | 對具名事件執行完全控制以及修改其存取規則和稽核規則的權限。 |
| Modify | 2 | 設定或重設具名事件之信號狀態的權限。 |
| ReadPermissions | 131072 | 開啟並複製具名事件之存取規則和稽核規則的權限。 |
| Synchronize | 1048576 | 等候具名事件的權限。 |
| TakeOwnership | 524288 | 變更具名事件擁有人的權限。 |
範例
下列程式代碼範例示範 EventWaitHandleRights 在建立和使用 EventWaitHandleAccessRule 物件時使用值。 此範例會 EventWaitHandleSecurity 建立 物件、新增規則，以允許和拒絕目前使用者的各種許可權，並顯示產生的規則組。 此範例接著會允許目前使用者的新許可權，並顯示結果，顯示新許可權會與現有 AccessControlType.Allow 規則合併。
注意
這個範例不會將安全性物件附加至 EventWaitHandle 物件;請參閱 EventWaitHandleSecurity、 EventWaitHandle.GetAccessControl 方法和 EventWaitHandle.SetAccessControl。
using System;
using System.Threading;
using System.Security.AccessControl;
using System.Security.Principal;
public class Example
{
public static void Main()
{
// Create a string representing the current user.
string user = Environment.UserDomainName + "\\" +
Environment.UserName;
// Create a security object that grants no access.
EventWaitHandleSecurity mSec = new EventWaitHandleSecurity();
// Add a rule that grants the current user the
// right to wait on or signal the event.
EventWaitHandleAccessRule rule = new EventWaitHandleAccessRule(user,
EventWaitHandleRights.Synchronize | EventWaitHandleRights.Modify,
AccessControlType.Allow);
mSec.AddAccessRule(rule);
// Add a rule that denies the current user the
// right to change permissions on the event.
rule = new EventWaitHandleAccessRule(user,
EventWaitHandleRights.ChangePermissions,
AccessControlType.Deny);
mSec.AddAccessRule(rule);
// Display the rules in the security object.
ShowSecurity(mSec);
// Add a rule that allows the current user the
// right to read permissions on the event. This rule
// is merged with the existing Allow rule.
rule = new EventWaitHandleAccessRule(user,
EventWaitHandleRights.ReadPermissions,
AccessControlType.Allow);
mSec.AddAccessRule(rule);
ShowSecurity(mSec);
}
private static void ShowSecurity(EventWaitHandleSecurity security)
{
Console.WriteLine("\r\nCurrent access rules:\r\n");
foreach(EventWaitHandleAccessRule ar in
security.GetAccessRules(true, true, typeof(NTAccount)))
{
Console.WriteLine(" User: {0}", ar.IdentityReference);
Console.WriteLine(" Type: {0}", ar.AccessControlType);
Console.WriteLine(" Rights: {0}", ar.EventWaitHandleRights);
Console.WriteLine();
}
}
}
/*This code example produces output similar to following:
Current access rules:
User: TestDomain\TestUser
Type: Deny
Rights: ChangePermissions
User: TestDomain\TestUser
Type: Allow
Rights: Modify, Synchronize
Current access rules:
User: TestDomain\TestUser
Type: Deny
Rights: ChangePermissions
User: TestDomain\TestUser
Type: Allow
Rights: Modify, ReadPermissions, Synchronize
*/
Imports System.Threading
Imports System.Security.AccessControl
Imports System.Security.Principal
Public Class Example
Public Shared Sub Main()
' Create a string representing the current user.
Dim user As String = Environment.UserDomainName _
& "\" & Environment.UserName
' Create a security object that grants no access.
Dim mSec As New EventWaitHandleSecurity()
' Add a rule that grants the current user the
' right to wait on or signal the event.
Dim rule As New EventWaitHandleAccessRule(user, _
EventWaitHandleRights.Synchronize _
Or EventWaitHandleRights.Modify, _
AccessControlType.Allow)
mSec.AddAccessRule(rule)
' Add a rule that denies the current user the
' right to change permissions on the event.
rule = New EventWaitHandleAccessRule(user, _
EventWaitHandleRights.ChangePermissions, _
AccessControlType.Deny)
mSec.AddAccessRule(rule)
' Display the rules in the security object.
ShowSecurity(mSec)
' Add a rule that allows the current user the
' right to read permissions on the event. This rule
' is merged with the existing Allow rule.
rule = New EventWaitHandleAccessRule(user, _
EventWaitHandleRights.ReadPermissions, _
AccessControlType.Allow)
mSec.AddAccessRule(rule)
ShowSecurity(mSec)
End Sub
Private Shared Sub ShowSecurity(ByVal security As EventWaitHandleSecurity)
Console.WriteLine(vbCrLf & "Current access rules:" & vbCrLf)
For Each ar As EventWaitHandleAccessRule In _
security.GetAccessRules(True, True, GetType(NTAccount))
Console.WriteLine(" User: {0}", ar.IdentityReference)
Console.WriteLine(" Type: {0}", ar.AccessControlType)
Console.WriteLine(" Rights: {0}", ar.EventWaitHandleRights)
Console.WriteLine()
Next
End Sub
End Class
'This code example produces output similar to following:
'
'Current access rules:
'
' User: TestDomain\TestUser
' Type: Deny
' Rights: ChangePermissions
'
' User: TestDomain\TestUser
' Type: Allow
' Rights: Modify, Synchronize
'
'
'Current access rules:
'
' User: TestDomain\TestUser
' Type: Deny
' Rights: ChangePermissions
'
' User: TestDomain\TestUser
' Type: Allow
' Rights: Modify, ReadPermissions, Synchronize
備註
當您建立EventWaitHandleAccessRule物件時，EventWaitHandleRights請使用 列舉來指定訪問控制許可權。 若要將訪問許可權套用至具名系統事件，請先將物件新增EventWaitHandleAccessRule至物件，然後使用建構函式或 EventWaitHandle.SetAccessControl 方法將EventWaitHandleSecurity物件附加至具名系統事件EventWaitHandle.EventWaitHandle(Boolean, EventResetMode, String, Boolean, EventWaitHandleSecurity)EventWaitHandleSecurity。
