Recover API – New API in AutoCAD 2015

By Virupaksha Aithal

A long time request by developer community is to recover the drawing files through API. That request has been addressed in AutoCAD 2015. Now, document collection class has a new API “AppContextRecoverDocument” which takes the name of the drawing file to recover. This API is present in ObjectARX and in .NET. In ObjectARX use AcApDocManager::appContextRecoverDocument() API.

[CommandMethod("RecoverTest", CommandFlags.Session)]
publicvoid RecoverTest() // This method can have any name
{
    Document doc =
        Application.DocumentManager.MdiActiveDocument;
    DocumentCollection docs = Application.DocumentManager;
    Editor ed = doc.Editor;

    OpenFileDialog file =
        newOpenFileDialog("Select file to recover", null,
                            "dwg;dxf", "Recover",
          OpenFileDialog.OpenFileDialogFlags.DoNotTransferRemoteFiles);
             
    //show the dialog and take the dwg input
    System.Windows.Forms.DialogResult dr =  file.ShowDialog();
    if (dr != System.Windows.Forms.DialogResult.OK)
           return;
    try
    {
        //call  AppContextRecoverDocument to revover the selected DWG.
        docs.AppContextRecoverDocument(file.Filename);
    }
    catch
    {
        ed.WriteMessage("Unable to recover the drawing\n");
    }
}