在COM悬挂式AutoCAD中另存为

从autodesk discussion groups ,第二个参数似乎是要另存为的类型,可能需要:

从连接到 AutoDesk 关于这个主题的论坛,听起来您需要在保存后关闭对象…并删除空值…如果我是您,我会将代码包装为 try / catch 要检查的块并确保没有异常被抛出!

我不得不质疑using子句的用法,因为你 Launch 你是在复制另一本吗?即在 OpenDrawing 和 Save 您正在使用的函数 this._acadApplication 还是我误解了?

using (AutoCad cad = AutoCad.Instance)
{
    try{
       // Launch AutoCAD
       cad.Launch();

       // Open drawing
       cad.OpenDrawing(@"C:\Scratch\Drawing01.dwg");

       // Save it
       cad.SaveAs(@"C:\Scratch\Drawing01B.dwg");
    }catch(COMException ex){
       // Handle the exception here
    }
}

public void Launch()
{
    this._acadApplication = null;
    const string ProgramId = "AutoCAD.Application.18";

    try
    {
        // Connect to a running instance
        this._acadApplication = (AcadApplication)Marshal.GetActiveObject(ProgramId);
    }
    catch (COMException)
    {
        /* No instance running, launch one */

        try
        {
            this._acadApplication = (AcadApplication)Activator.CreateInstance(
                Type.GetTypeFromProgID(ProgramId), 
                true);
        }
        catch (COMException exception)
        {
            // Failed - is AutoCAD installed?
            throw new AutoCadNotFoundException(exception);
        }
    }

    /* Listen for the events we need and make the application visible */
    this._acadApplication.BeginOpen += this.OnAcadBeginOpen;
    this._acadApplication.BeginSave += this.OnAcadBeginSave;
    this._acadApplication.EndOpen += this.OnAcadEndOpen;
    this._acadApplication.EndSave += this.OnAcadEndSave;

#if DEBUG
    this._acadApplication.Visible = true;
#else
    this._acadApplication.Visible = false;
#endif

    // Get the active document
    // this._acadDocument = this._acadApplication.ActiveDocument; 
    // Comment ^^^ out? as you're instantiating an ActiveDocument below when opening the drawing?
}

public void OpenDrawing(string path)
{
    try{
       // Request AutoCAD to open the document
       this._acadApplication.Documents.Open(path, false, null);

       // Update our reference to the new document
       this._acadDocument = this._acadApplication.ActiveDocument;
    }catch(COMException ex){
       // Handle the exception here
    }
}

public void SaveAs(string fullPath)
{
    try{
       this._acadDocument.SaveAs(fullPath, null, null);
    }catch(COMException ex){
       // Handle the exception here
    }finally{
       this._acadDocument.Close();
    }
}

我想我会为你提供一些链接。

• ’ Closing Autocad gracefully '.
• ’ Migrating AutoCAD COM to AutoCAD 2010 '.
• ’ Saving AutoCAD to another format ’

希望这有帮助, 最好的问候, 汤姆。

我已经设法以一种非最优的、非常不完美的方式解决了这个问题,所以我仍然有兴趣知道是否有人知道为什么saveas方法会崩溃autocad并挂起我的应用程序。

我是这样做的:

打开文档或创建新文档时,关闭“打开/保存”对话框:

this._acadDocument.SetVariable("FILEDIA", 0);

保存文档时,发出以“2010”作为格式和文件名(fullpath)传递的\u saveas命令:

string commandString = string.Format(
    "(command \"_SAVEAS\" \"{0}\" \"{1}\") ",
    "2010",
    fullPath.Replace('\\', '/'));

this._acadDocument.SendCommand(commandString);

退出AutoCAD“打开文件”对话框时,再次提示(可能不需要,但只需确保):

this._acadDocument.SetVariable("FILEDIA", 1);

对于C和COM,当存在可选参数时,需要使用 Type.Missing 而不是空值:

this._acadDocument.SaveAs(fullPath, Type.Missing, Type.Missing);

但自Visual Studio 2010以来,您只需省略可选参数:

this._acadDocument.SaveAs(fullPath);