public SevenZipFormat(string sevenZipLibPath)
{
this.LibHandle = SevenZipFormat.LoadLibrary(sevenZipLibPath);
if (this.LibHandle.IsInvalid)
{
throw new Win32Exception();
}
if (SevenZipFormat.GetProcAddress(this.LibHandle, "GetHandlerProperty") == IntPtr.Zero)
{
this.LibHandle.Close();
throw new ArgumentException();
}
}
public IInArchive CreateInArchive(Guid classId)
{
object obj = null;
if (this.LibHandle == null)
{
throw new ObjectDisposedException("SevenZipFormat");
}
CreateObjectDelegate delegateForFunctionPointer = (CreateObjectDelegate)Marshal.GetDelegateForFunctionPointer(SevenZipFormat.GetProcAddress(this.LibHandle, "CreateObject"), typeof(CreateObjectDelegate));
if (delegateForFunctionPointer == null)
{
return(null);
}
Guid gUID = typeof(IInArchive).GUID;
delegateForFunctionPointer(ref classId, ref gUID, out obj);
return(obj as IInArchive);
}