Category: 學習工作

[C#] Unix Timestamp

因為 Facebook 上頭記錄時間是用 Unix Timestamp，所以來看一下怎麼做。

C# 處理 facebook JSON Serialized Data

當透過 access token 去 facebook 抓取資料時，回傳的資料將以 JSON 的方式編碼，在 C# 裡頭可以用 JavaScriptSerializer 來處理，下面是個很懶惰的處理方式，不需要另外先去設計與宣告一個符合 facebook JSON 格式的 class object 來儲存資料，反正需要的時候再來針對 Key 另外處理即可。

取得登入帳號 Environment.UserName 取得帳號等有儲存在本機上的資訊 using System.Security.Principal; using System.Threading; //—– AppDomain.CurrentDomain.SetPrincipalPolicy(PrincipalPolicy.WindowsPrincipal); WindowsPrincipal myPrincipal = (WindowsPrincipal)Thread.CurrentPrincipal; WindowsIdentity myIdentity = (WindowsIdentity)myPrincipal.Identity; Console.WriteLine(“IdentityType: ” + myIdentity.ToString()); Console.WriteLine(“Name: {0}”, myIdentity.Name); Console.WriteLine(“Member of Users? {0}”, myPrincipal.IsInRole(WindowsBuiltInRole.User)); Console.WriteLine(“Member of Administrators? {0}”, myPrincipal.IsInRole(WindowsBuiltInRole.Administrator)); Console.WriteLine(“Authenticated: {0}”, myIdentity.IsAuthenticated); Console.WriteLine(“Anonymous: {0}”, myIdentity.IsAnonymous); 取得帳號等有儲存在本機上的資訊 – II 使用 Win32 API using System.Runtime.InteropServices; //—– [DllImport(“Advapi32.dll”, EntryPoint=”GetUserName”, ExactSpelling=false, SetLastError=true)] static extern […]

C# window form drawing over other controls / 在 window form 中繪製圖形並疊在控制項上

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| 學習工作, 工作, 程式

本文以中英夾雜並陳 This article is interleaved with Chinese and English. 本來還想在網路上看能不能找到答案的, 結果只有找到一些可能的提示… 不過最後還是摸索出來了啦 😀 At the beginning, I hope to scrounge the solution from Internet, but after hours of searching, I only find some possible hints. Anyway, here’s the solution.

C# Windows form 透明 panel (transparent panel)

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| 學習工作, 工作, 程式

using System.Windows.Forms; namespace XXX_namespace { /// /// A transparent control. /// public class TransparentPanel : Panel { public TransparentPanel() { } protected override CreateParams CreateParams { get { CreateParams createParams = base.CreateParams; createParams.ExStyle |= 0x00000020; // WS_EX_TRANSPARENT return createParams; } } protected override void OnPaintBackground(PaintEventArgs e) { // Do not paint background. } } }