GetPrivateProfileString and writeprivateprofilestring operating ini configuration files in C # via C + +

Namespace Apimethod
{
/*
* Name: Tan Yi
* Time: 2008.5.28
* Q q:260511433
* MSN: [email protected]
* Email: [Email protected]
* Note: If you need to add or modify this module, please contact me, we work together.
* Note: This module can only get the value of a key, if who can perfect get all the keys and values of a bar, please contact me.
*/

<summary>
INI file Operation class
</summary>
public sealed class Iniutility
{
private static string _filepath = String. empty;//file path

<summary>
File path
</summary>
public static string FilePath
{
get {return _filepath;}
set {_filepath = value;}
}

<summary>
Windows API to INI file Write method
</summary>
<param name= "Lpapplicationname" > The name of the subsection in which to write the new string. This string is case insensitive </param>
<param name= "Lpkeyname" > the item name or the entry name to be set. This string is not case-sensitive. Use NULL to delete all settings for this section </param>
<param name= "lpstring" > Specifies the string value to write for this entry. Delete the existing string of this item with NULL = </param>
<param name= "lpFileName" > Initialization file name. If you do not specify a full pathname, Windows looks for files in the Windows directory. If the file is not found, the function creates it </param>
<returns></returns>
[System.Runtime.InteropServices.DllImport ("kernel32")]
private static extern long WritePrivateProfileString (string lpapplicationname, String lpkeyname, String lpstring, String lpFileName);

<summary>
Windows API to INI file Read method
</summary>
<param name= "Lpapplicationname" > The name of the subsection in which you want to find the entry. This string is not case-sensitive. If set to NULL, the list of all subsections of this INI file is loaded within the lpreturnedstring buffer </param>
<param name= "Lpkeyname" > the item Name or entry name you want to get. This string is not case-sensitive. If set to NULL, loads a list of all items in the specified section in the lpreturnedstring buffer </param>
<param name= "Lpdefault" > The specified entry is not found when the default value is returned. can be set to null ("") </param>
<param name= "lpreturnedstring" > Specify a string buffer with a length of at least nsize</param>
<param name= "NSize" > Specifies the maximum number of characters to load into the lpreturnedstring buffer </param>
<param name= "lpFileName" > Initialization file name. If you do not specify a full pathname, Windows looks for files in the Windows directory </param>
Note: If the lpkeyname parameter is null, then the lpreturnedstring buffer loads a list of all the settings in the specified subsection.
Each entry is separated by a null character, and the last item is aborted with two null characters. Please also refer to the annotations of the Getprivateprofileint function
<returns></returns>
[System.Runtime.InteropServices.DllImport ("kernel32")]
private static extern long GetPrivateProfileString (string lpapplicationname, String lpkeyname, String Lpdefault, System.Text.StringBuilder lpreturnedstring, int nSize, string lpfilename);

<summary>
Write values to the INI file
</summary>
<param name= "section" > The name of the subsection </param>
<param name= "key" > Key name </param>
<param name= "value" > key value </param>
<returns> execution succeeded to true and failed to false. </returns>
public static long Writeinikey (string section, string key, String value)
{
if (section. Trim (). Length <= 0 | | Key. Trim (). Length <= 0 | |
Value. Trim (). Length <= 0) return 0;

return writeprivateprofilestring (section, key, value, FilePath);
}

       //<summary>
        ///delete the keys in the specified section
       //</summary
       //<param name= "section" > subsection name </param>
        //<param name= "key" > Key name </param>
        //<returns> execution succeeds to true, failure is false. </returns>
        public static long Deleteinikey (string section, String key)
        {
             if (section. Trim (). Length <= 0 | | Key. Trim (). Length <= 0) return 0;

return writeprivateprofilestring (section, key, NULL, FilePath);
}

<summary>
Deletes the specified subsection (including all keys in this section)
</summary>
<param name= "section" > The name of the subsection </param>
<returns> execution succeeded to true and failed to false. </returns>
public static long Deleteinisection (string section)
{
if (section. Trim (). Length <= 0) return 0;

return writeprivateprofilestring (section, NULL, NULL, FILEPATH);
}

<summary>
Gets the value of the key in the specified subsection
</summary>
<param name= "section" > The name of the subsection </param>
<param name= "key" > Key name </param>
<param name= "DefaultValue" > returns the specified default value if the key value is empty or not found. </param>
<param name= "Capacity" > Buffer initialization size. </param>
Values for <returns> keys </returns>
public static string Getinikeyvalue (String section, string key,string defaultvalue,int capacity)
{
if (section. Trim (). Length <= 0 | | Key. Trim (). Length <= 0) return defaultvalue;

System.Text.StringBuilder strtemp = new System.Text.StringBuilder (capacity);
Long returnvalue = getprivateprofilestring (section, key, DefaultValue, strtemp, capacity, FilePath);

Return strtemp.tostring (). Trim ();
}

       //<summary>
        ///Get the value of the key in the specified section
       //</summary
       //<param name= "section" > subsection name </param>
        //<param name= "key" > Key name </param>
        //<param name= "DefaultValue" > returns the specified default value if the key value is empty or not found. </param>
       ///<returns> value </returns>
         public static string Getinikeyvalue (string section, string key, String DefaultValue)
        {
             return Getinikeyvalue (section, key, DefaultValue, 1024);
       }

<summary>
Gets the value of the key in the specified subsection
</summary>
<param name= "section" > The name of the subsection </param>
<param name= "key" > Key name </param>
Values for <returns> keys </returns>
public static string Getinikeyvalue (string section, string key)
{
return Getinikeyvalue (section, key, String. Empty, 1024);
}
}
}

GetPrivateProfileString and writeprivateprofilestring operating ini configuration files in C # via C + +