sa_2008
یک شنبه 23 خرداد 1389, 11:08 صبح
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using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
namespace Utils
{
/// <summary>
/// Class to read from INI files. Based loosely on the Delphi class of the same name.
/// </summary>
public class IniFile
{
private string fileName;
/// <summary>
/// Creates a new <see cref="IniFile"/> instance.
/// </summary>
/// <param name="fileName">Name of the INI file.</param>
public IniFile(string fileName)
{
if (!File.Exists(fileName))
throw new FileNotFoundException(fileName + " does not exist", fileName);
this.fileName = fileName;
}
// native methods
[DllImport("kernel32")]
private static extern int GetPrivateProfileString(string section,
string key, string def, StringBuilder retVal, int size, string filePath);
[DllImport("kernel32")]
private static extern int GetPrivateProfileSection(string section, IntPtr lpReturnedString,
int nSize, string lpFileName);
/// <summary>
/// Reads a string value from the INI file.
/// </summary>
/// <param name="section">Section to read.</param>
/// <param name="key">Key to read.</param>
public string ReadString(string section, string key)
{
const int bufferSize = 255;
StringBuilder temp = new StringBuilder(bufferSize);
GetPrivateProfileString(section, key, "", temp, bufferSize, fileName);
return temp.ToString();
}
/// <summary>
/// Reads a whole section of the INI file.
/// </summary>
/// <param name="section">Section to read.</param>
public string[] ReadSection(string section)
{
const int bufferSize = 2048;
StringBuilder returnedString = new StringBuilder();
IntPtr pReturnedString = Marshal.AllocCoTaskMem(bufferSize);
try
{
int bytesReturned = GetPrivateProfileSection(section, pReturnedString, bufferSize, fileName);
//bytesReturned -1 to remove trailing \0
for (int i = 0; i < bytesReturned-1; i++)
returnedString.Append((char)Marshal.ReadByte(new IntPtr((uint)pReturnedString + (uint)i)));
}
finally
{
Marshal.FreeCoTaskMem(pReturnedString);
}
string sectionData = returnedString.ToString();
return sectionData.Split('\0');
}
}
}