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swGenericSaveError when saving as DWG

Question asked by Marc Christenson on Jun 9, 2016
Latest reply on Feb 16, 2017 by Guillermo Oliver

I have the following code that saves a drawing as a different format. It is a method in a larger class.


private string ExportFile(string extension)
    var dxfOutputNoScale = (int)swUserPreferenceIntegerValue_e.swDxfOutputNoScale;
    var setPreferenceResult = mSWApplication.SetUserPreferenceIntegervalue(dxfOutputNoScale, 0);

    // doc is a ModelDoc2 referencing the active drawing document
    var newName = doc.GetPathName() + "." + extension;
    var saveAsVersion = (int)swSaveAsVersion_e.swSaveAsCurrentVersion;
    var saveAsOptions = (int)swSaveAsOptions_e.swSaveAsOptions_Silent;
    var errorMask = 0;
    var warningMask = 0;
    var saveAsResult = doc.Extension.SaveAs(newName, saveAsVersion, saveAsOptions, null, ref errorMask, ref warningMask);
    if (saveAsResult)
        return newName;

    var errors = (swFileSaveError_e)errorMask;
    var errorList = Enum.GetValues(typeof(swFileSaveError_e)).Cast<swFileSaveError_e>().Where(v => errors.HasFlag(v)).ToList();
    var warnings = (swFileSaveWarning_e)warningMask;
    var warningList = Enum.GetValues(typeof(swFileSaveWarning_e)).Cast<swFileSaveWarning_e>().Where(v => warnings.HasFlag(v)).ToList();
    var m = "Error while creating " + extension + "\n\n" + string.Join("\n", errorList) + "\n" + string.Join("\n", warningList);
    MessageBox.Show(m, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
    return string.Empty;


When I call this method with "pdf" as the extension, everything works fine. But when I use "DWG" as the extension, the SaveAs fails with a swGenericSaveError. If I manually save the drawing as a DWG, I don't get an error.


What can I do to troubleshoot this swGenericSaveError?