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/*
* 作用：调用外部/系统 DLL，判断文档是否处于打开状态，读取/写入 Ini 数据。
* */
using System;
using System.Runtime.InteropServices;
using System.Text;
using System.Collections;
using System.Collections.Generic;
namespace Helper.Core.Library
{
public class DllImportHelper
{
#region 私有属性常量
[DllImport("kernel32.dll")]
private static extern IntPtr _lopen(string lpPathName, int iReadWrite);
[DllImport("kernel32.dll")]
private static extern bool CloseHandle(IntPtr hObject);
[DllImport("kernel32.dll")]
private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
[DllImport("kernel32.dll")]
private static extern long GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);
private const int OF_READWRITE = 2;
private const int OF_SHARE_DENY_NONE = 0x40;
private static readonly IntPtr HFILE_ERROR = new IntPtr(-1);
#endregion
#region 对外公开方法
#region 判断文档是否打开
/// <summary>
/// 判断文档是否打开
/// </summary>
/// <param name="filePath">文档路径</param>
/// <param name="existStatus">是否检查文件是否存在，true 文件不存在时判断为未打开状态</param>
/// <returns></returns>
public static bool IsFileOpen(string filePath, bool existStatus = true)
{
if (existStatus) if (!System.IO.File.Exists(filePath)) return false;
IntPtr vHandle = _lopen(filePath, OF_READWRITE | OF_SHARE_DENY_NONE);
if (vHandle == HFILE_ERROR)
{
CloseHandle(vHandle);
return true;
}
CloseHandle(vHandle);
return false;
}
/// <summary>
/// 判断文档是否打开
/// </summary>
/// <param name="existStatus">是否检查文件是否存在，true 文件不存在时判断为未打开状态</param>
/// <param name="filePathList">文档路径列表</param>
/// <returns></returns>
public static bool IsFileOpen(bool existStatus = true, params string[] filePathList)
{
foreach (string filePath in filePathList)
{
if (IsFileOpen(filePath, existStatus)) return true;
}
return false;
}
#endregion
#region 读取/设置 INI 数据
/// <summary>
/// 设置 INI 数据
/// </summary>
/// <param name="iniPath">ini 文件路径</param>
/// <param name="section">节点名，[] 符号内表示节点</param>
/// <param name="key">节点键名称，= 符号左侧表示键</param>
/// <param name="value">值</param>
/// <returns></returns>
public static bool SetIniData(string iniPath, string section, string key, string value)
{
if (!System.IO.File.Exists(iniPath)) System.IO.File.Create(iniPath).Close();
long tag = WritePrivateProfileString(section, key, value, iniPath);
if (tag > 0) return true;
return false;
}
/// <summary>
/// 设置 INI 数据
/// </summary>
/// <param name="iniPath">ini 文件路径</param>
/// <param name="section">节点名，[] 符号内表示节点</param>
/// <param name="keyValueDict">键值数据</param>
/// <returns></returns>
public static bool SetIniDataDict(string iniPath, string section, Dictionary<string, string> keyValueDict)
{
if (!System.IO.File.Exists(iniPath)) System.IO.File.Create(iniPath).Close();
if (keyValueDict != null && keyValueDict.Count > 0)
{
bool status = false;
foreach(KeyValuePair<string, string> keyValueItem in keyValueDict)
{
status = SetIniData(iniPath, section, keyValueItem.Key, keyValueItem.Value);
if (!status) return false;
}
return true;
}
return false;
}
/// <summary>
/// 获取 INI 数据
/// </summary>
/// <param name="iniPath">ini 文件路径</param>
/// <param name="section">节点名，[] 符号内表示节点</param>
/// <param name="key">节点键名称，= 符号左侧表示键</param>
/// <param name="size">读取字节长度</param>
/// <returns></returns>
public static string GetIniData(string iniPath, string section, string key, int size = 1024)
{
if (!System.IO.File.Exists(iniPath)) return null;
StringBuilder stringBuilder = new StringBuilder(size);
GetPrivateProfileString(section, key, "", stringBuilder, size, iniPath);
return stringBuilder.ToString();
}
/// <summary>
/// 获取 INI 数据
/// </summary>
/// <param name="iniPath">ini 文件路径</param>
/// <param name="section">节点名，[] 符号内表示节点</param>
/// <param name="keyList">节点键列表</param>
/// <param name="size">读取字节长度</param>
/// <returns></returns>
public static Dictionary<string, string> GetIniDataDict(string iniPath, string section, string[] keyList, int size = 1024)
{
if (keyList == null && keyList.Length == 0) return null;
Dictionary<string, string> resultDict = new Dictionary<string, string>();
foreach(string key in keyList)
{
resultDict.Add(key, GetIniData(iniPath, section, key, size));
}
return resultDict;
}
#endregion
#endregion
}
}