C#

PIEBALDconsult wrote:

Parallel Port

string s=Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
s=s.SubString(0, s.Length-8);    // drop \Desktop

public static string GetUserFolder()
{
    return 
        Environment.GetEnvironmentVariable("SystemDrive") + 
        Environment.GetEnvironmentVariable("HOMEPATH"); 
}

public const int UserProfile = 40;

[DllImport("shfolder.dll", CharSet = CharSet.Auto)]
private static extern int SHGetFolderPath(IntPtr hwndOwner, int nFolder, IntPtr hToken, int dwFlags, StringBuilder lpszPath);

public static string GetUserPath()
{
    StringBuilder resultBuilder = new StringBuilder(260);
    int num = SHGetFolderPath(IntPtr.Zero, UserProfile, IntPtr.Zero, 0, resultBuilder);
    if (num == -2146233031)
        throw new PlatformNotSupportedException();
    return resultBuilder.ToString();
}

manchukuo wrote:

Cannot convert type 'System.Drawing.Size' to 'int'

new IntPtr(yourInt)

// NativeMethods.cs

using System;
using System.Drawing;
using System.Runtime.InteropServices;

internal static class NativeMethods
{
    // http://msdn.microsoft.com/en-us/library/ms644950(v=vs.85).aspx
    /*
LRESULT WINAPI SendMessage(
__in  HWND hWnd,
__in  UINT Msg,
__in  WPARAM wParam,
__in  LPARAM lParam
);*/
    [DllImport("User32.dll", SetLastError = true)]
    public static extern IntPtr SendMessage(
        IntPtr hWnd, int Msg, IntPtr wParam, IntPtr lParam);
    [DllImport("User32.dll", SetLastError = true)]
    public static extern IntPtr SendMessage(
        IntPtr hWnd, int Msg, IntPtr wParam, ref Size lParam);
}