NETFramework中Marshall.GetActiveObject的NET5替代方案是什么？

NET 5中没有Marshall.GetActiveObject方法。但可以使用以下代码示例替代：

using System.Runtime.InteropServices; using System.Runtime.InteropServices.ComTypes;

public static class ActiveObject { public static object GetActiveObject(string progID) { object activeObject;

  try 
  {
     IBindCtx bindCtx = null;
     if (Marshal.GetRunningObjectTable(0, out var rot) == 0)
     {
        rot.GetDisplayNameOf(Marshal.GetFileInfoFromProgId(progID).ClassID, out var monikerString);
        rot.GetObject(monikerString, out activeObject);
     }
  }
  catch (COMException ex) 
  {
     activeObject = null;
  }

  return activeObject;

} }

使用示例： object activeObj = ActiveObject.GetActiveObject("Excel.Application");