using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Win32;
using System.Runtime.InteropServices;
namespace Xplayer
{
public class LinkFile
{
#region 程序关联到文件
[DllImport("shell32.dll")]//立即刷新显示而不重启电脑
public static extern void SHChangeNotify(uint wEventId, uint uFlags, IntPtr dwItem1, IntPtr dwItem2);
/// <summary>
/// 关联文件 双击启动程序的文件
/// </summary>
public static string[] FileNameWhoInvokeEXE = null;
/// <summary>
/// 设置关联文件
/// </summary>
/// <param name="ExName">文件扩展名</param>
/// <param name="TypeName">文件类型名</param>
/// <param name="IconPath">文件图标</param>
/// <param name="AppPath">启动程序</param>
public static void SetLink(string ExName, string TypeName, string IconPath, string AppPath)
{
try
{
RegistryKey root = Registry.ClassesRoot;//root key
//change extendname link
root.CreateSubKey(ExName);
root.DeleteSubKeyTree(ExName);
root.CreateSubKey(ExName);
RegistryKey ExKey = root.OpenSubKey(ExName, true);
ExKey.SetValue("", TypeName);
ExKey.SetValue("Content Type", TypeName);//add value
//create new filetype
root.CreateSubKey(TypeName);
root.DeleteSubKeyTree(TypeName);
root.CreateSubKey(TypeName);
RegistryKey TypeKey = root.OpenSubKey(TypeName, true);
TypeKey.SetValue("", TypeName);
TypeKey.CreateSubKey("DefaultIcon").SetValue("", IconPath);//new subkey icon
TypeKey.CreateSubKey("shell\\Open\\Command").SetValue("", "\"" + AppPath + "\"" + "\"" + " %1" + "\"");//new subkey command
TypeKey.Close();
root.Close();
SHChangeNotify(0x8000000, 0, IntPtr.Zero, IntPtr.Zero);//not need reboot
}
catch { }
}
/// <summary>
/// 解除关联文件
/// </summary>
/// <param name="TypeName"></param>
public static void DelLink(string TypeName)
{
try
{
RegistryKey root = Registry.ClassesRoot;
root.DeleteSubKeyTree(TypeName);//delete type key
root.Close();
SHChangeNotify(0x8000000, 0, IntPtr.Zero, IntPtr.Zero);//not need reboot
}
catch { }
}
#endregion
#region 程序加入系统右键
/// <summary>
/// 程序关联扩展名文件右键菜单
/// </summary>
/// <param name="ExName">扩展名文件</param>
/// <param name="MenuName">右键显示名称</param>
/// <param name="AppPath">程序</param>
public static void SetRightMenuLink(string MenuName, string AppPath)
{
try
{
RegistryKey shellKey = Registry.ClassesRoot.OpenSubKey("*\\shell", true);
shellKey.CreateSubKey(MenuName).CreateSubKey("command").SetValue("", "\"" + AppPath + "\"" + "\"" + " %1" + "\"");
shellKey.Close();
}
catch { }
}
/// <summary>
/// 解除程序关联扩展名文件右键菜单
/// </summary>
/// <param name="ExName">扩展名文件</param>
public static void DeleteRightMenuLink(string MenuName)
{
try
{
RegistryKey fileshellKey = Registry.ClassesRoot.OpenSubKey("*\\shell", true);
fileshellKey.DeleteSubKeyTree(MenuName);
fileshellKey.Close();
}
catch { }
}
#endregion
#region 跨进程通信
public const int WM_COPYDATA = 0x004A;
[DllImport("User32.dll", EntryPoint = "SendMessage")]
public static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, ref COPYDATASTRUCT lParam);
/// <summary>
/// 所需传递的结构体
/// </summary>
public struct COPYDATASTRUCT
{
public IntPtr dwData;//用户定义数据
public int cbData;//数据大小
[MarshalAs(UnmanagedType.LPStr)]
public string lpData;//指向数据的指针
}
/// <summary>
/// 发送字符串
/// </summary>
/// <param name="hWnd"></param>
/// <param name="str"></param>
public static void SendStr(IntPtr hWnd, string str)
{
try
{
byte[] sarr = System.Text.Encoding.Default.GetBytes(str);
int len = sarr.Length;
COPYDATASTRUCT cds;
cds.dwData = (IntPtr)100;
cds.lpData = str;
cds.cbData = len + 1;
SendMessage(hWnd, WM_COPYDATA, 0, ref cds);
}
catch { }
}
//#region 跨进程通信 接收消息
///// <summary>
///// 重写接收函数 放到主窗体类中
///// </summary>
///// <param name="m"></param>
//protected override void DefWndProc(ref Message m)
//{
// if (m.Msg == LinkFile.WM_COPYDATA)
// {
// LinkFile.COPYDATASTRUCT mystr = new LinkFile.COPYDATASTRUCT();
// Type mytype = mystr.GetType();
// mystr = (LinkFile.COPYDATASTRUCT)m.GetLParam(mytype);//获取类型
// string str = mystr.lpData;
// wmplayer1.URL = str;
// listBox1.Items.Add(str);
// listBox1.SelectedItems.Clear();
// listBox1.SetSelected(listBox1.Items.Count - 1, true);
// labelFormTitle.Text = str;
// }
// base.DefWndProc(ref m);
//}
//#endregion
#endregion
}
}
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