/// <summary>
/// 更新指定文件类型关联信息
/// </summary>
public static bool UpdateFileTypeRegInfo(FileTypeRegInfo regInfo)
{
if (!FileTypeRegistered(regInfo.ExtendName))
{
return(false);
}
string extendName = regInfo.ExtendName;
string relationName = extendName.Substring(1, extendName.Length - 1).ToUpper() + "_FileType";
RegistryKey relationKey = Registry.ClassesRoot.OpenSubKey(relationName, true);
relationKey.SetValue("", regInfo.Description);
RegistryKey iconKey = relationKey.OpenSubKey("DefaultIcon", true);
iconKey.SetValue("", regInfo.IconPath);
RegistryKey shellKey = relationKey.OpenSubKey("Shell");
RegistryKey openKey = shellKey.OpenSubKey("Open");
RegistryKey commandKey = openKey.OpenSubKey("Command", true);
commandKey.SetValue("", regInfo.ExePath + " %1");
relationKey.Close();
return(true);
}
/// <summary>
/// 获取指定文件类型关联信息
/// </summary>
public static FileTypeRegInfo GetFileTypeRegInfo(string extendName)
{
if (!FileTypeRegistered(extendName))
{
return(null);
}
FileTypeRegInfo regInfo = new FileTypeRegInfo(extendName);
string relationName = extendName.Substring(1, extendName.Length - 1).ToUpper() + "_FileType";
RegistryKey relationKey = Registry.ClassesRoot.OpenSubKey(relationName);
regInfo.Description = relationKey.GetValue("").ToString();
RegistryKey iconKey = relationKey.OpenSubKey("DefaultIcon");
regInfo.IconPath = iconKey.GetValue("").ToString();
RegistryKey shellKey = relationKey.OpenSubKey("Shell");
RegistryKey openKey = shellKey.OpenSubKey("Open");
RegistryKey commandKey = openKey.OpenSubKey("Command");
string temp = commandKey.GetValue("").ToString();
regInfo.ExePath = temp.Substring(0, temp.Length - 3);
return(regInfo);
}
/// <summary>
/// 使文件类型与对应的图标及应用程序关联起来
/// </summary>
public static void RegisterFileType(FileTypeRegInfo regInfo)
{
if (FileTypeRegistered(regInfo.ExtendName))
{
return;
}
//HKEY_CLASSES_ROOT/.osf
RegistryKey fileTypeKey = Registry.ClassesRoot.CreateSubKey(regInfo.ExtendName);
string relationName = regInfo.ExtendName.Substring(1,
regInfo.ExtendName.Length - 1).ToUpper() + "_FileType";
fileTypeKey.SetValue("", relationName);
fileTypeKey.Close();
//HKEY_CLASSES_ROOT/OSF_FileType
RegistryKey relationKey = Registry.ClassesRoot.CreateSubKey(relationName);
relationKey.SetValue("", regInfo.Description);
//HKEY_CLASSES_ROOT/OSF_FileType/Shell/DefaultIcon
RegistryKey iconKey = relationKey.CreateSubKey("DefaultIcon");
iconKey.SetValue("", regInfo.IconPath);
//HKEY_CLASSES_ROOT/OSF_FileType/Shell
RegistryKey shellKey = relationKey.CreateSubKey("Shell");
//HKEY_CLASSES_ROOT/OSF_FileType/Shell/Open
RegistryKey openKey = shellKey.CreateSubKey("Open");
//HKEY_CLASSES_ROOT/OSF_FileType/Shell/Open/Command
RegistryKey commandKey = openKey.CreateSubKey("Command");
commandKey.SetValue("", regInfo.ExePath + " %1"); // " %1"表示将被双击的文件的路径传给目标应用程序
relationKey.Close();
}