/// <summary>
/// Loads an unmanaged library from filesystem
/// </summary>
/// <param name="fullFileName">full qualified name of the library file</param>
/// <param name="fileVersion">optional file version to check major and minor</param>
/// <returns>handle to library</returns>
/// <exception cref="FileNotFoundException">File is missing</exception>
/// <exception cref="Win32Exception">Unable to load library</exception>
/// <exception cref="FileLoadException">A version mismatch occurs</exception>
/// <exception cref="ArgumentNullException">fullFileName is null or empty</exception>
/// <exception cref="NetOfficeIOException">I/O related error</exception>
public static CdeclHandle LoadLibrary(string fullFileName, Version fileVersion = null)
{
if (String.IsNullOrWhiteSpace(fullFileName))
{
throw new ArgumentNullException("fullFileName");
}
if (!File.Exists(fullFileName))
{
throw new FileNotFoundException("File is missing.", fullFileName);
}
string folder = IOPath.GetDirectoryName(fullFileName);
string fileName = IOPath.GetFileName(fullFileName);
if (null != fileVersion)
{
FileVersionInfo version = FileVersionInfo.GetVersionInfo(fullFileName);
if (version.FileMajorPart != fileVersion.Major ||
version.FileMinorPart != fileVersion.Minor)
{
throw new FileLoadException(
String.Format("Unable to load library <{0}> because a version mismatch occurs.", fileName));
}
}
IntPtr ptr = Interop.LoadLibrary(fullFileName);
if (ptr == IntPtr.Zero)
{
throw new Win32Exception(String.Format("Unable to load library <{0}>.", fileName));
}
return(new CdeclHandle(ptr, folder, fileName));
}
//根据歌曲，获取歌词
private List <Lynic> GetLynicBySong(Song s)
{
string lynicFile1 = IOPath.Combine(IOPath.GetDirectoryName(s.Location), IOPath.GetFileNameWithoutExtension(s.Location) + ".lrc");
string lynicFile2 = IOPath.Combine(IOPath.GetDirectoryName(s.Location), "Lynic", IOPath.GetFileNameWithoutExtension(s.Location) + ".lrc");
if (File.Exists(lynicFile1))
{
return(EntityService.GetLynics(lynicFile1));
}
else if (File.Exists(lynicFile2))
{
return(EntityService.GetLynics(lynicFile2));
}
else
{
return(null);
}
}