Category Archives: C#

C# Snippets

C#, Windows

Windows: Recording Audio from the Audio loopback device

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Hi,

for learning C# I have created a sample project. I choose the NAudio library to play around with sound interfaces in Windows. Starting from this point the C# project grows :-).
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C#

C#: Get description attribute from an enum value

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Hi,

in this post I will show how to read a description attribute of an enum value by reflection. Let us assume we have a enum linke this

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public enum MetalBands {
    [DescriptionAttribute("This is Metallica from CA")]
    Metallica,
    [DescriptionAttribute("This is Slayer from CA")]
    Slayer,
    [DescriptionAttribute("This is Overkill from NY")]
    Overkill
};

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C#, Windows

Windows: Convert formatted text in clipboard to plain text

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Hi,

when you often have to copy some text between HTML/Browser pages, browser based content management systems, Office Documents and terminal emulators you know the problem: Text from browsers and office documents also contains format attributes like font size, fonts etc. which causes an unexpected layout or format.

For example, if you copy a text from LibreOffice to wordpress(Yes of course, you could paste the test  into wordpress by using the “paste plain text” toolbar buttons. But this is one step more and I prefer Ctrl V Ctrl C for copy and paste).
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C#, Windows knowhow

Windows: Create a new local User Account and add them to a local group by using .NET and C#

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Hi,

a short post. It describes how to create a new local Windows User account and add them to an existing local user group.

First of all, include the following references in your project:

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using System.DirectoryServices;
using System.Runtime.InteropServices;

Create a new User with local administrator rights.

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// define Username and Password
const string USER_NAME = "NewAdmin";
char[] aPWchars = { 'P', 'a', 's', 's' , 'w', 'o', 'r', 'd'};
System.Security.SecureString oPW = new System.Security.SecureString();
foreach (char cChr in aPWchars) {
    oPW.AppendChar(cChr);
}
// Get Computerobject via ADSI
DirectoryEntry oComputer = new DirectoryEntry("WinNT://" + Environment.MachineName + ",computer");
// New User
DirectoryEntry oNewUser = oComputer.Children.Add(USER_NAME, "user");
// define Pointer to a string
IntPtr pString = IntPtr.Zero;
// Pointer to password
pString = Marshal.SecureStringToGlobalAllocUnicode(oPW);
// Set password
oNewUser.Invoke("SetPassword", new object[] { Marshal.PtrToStringUni(pString) });
// Add a description
oNewUser.Invoke("Put", new object[] { "Description", "New Administrator" });
// Save changes
oNewUser.CommitChanges();
// Cleanup and free Password pointer
Marshal.ZeroFreeGlobalAllocUnicode(pString);
// Get Group
DirectoryEntry oGroup = oComputer.Children.Find("Administrators", "group");
// And add the recently created user
oGroup.Invoke("Add", new object[] { oNewUser.Path.ToString() });

Michael