Export 2D Drawing to DXF and DWG using VB API

JW_12611872 — Wed, 19 Nov 2025 13:43:40 GMT

Hello everyone,

We use Creo10.0.

I am able to export a DWG but certain parts of the drawing are missing. e.g. the title block.
Does someone know a solution. maybe it is relate to me using CCpfcDWG3DExportInstructions but no other instrutions i tested deliver a openable DWG.

public static string ExportToDwg(string inputFilePath) { if (string.IsNullOrWhiteSpace(inputFilePath)) throw new ArgumentNullException(nameof(inputFilePath), "No input file path provided."); if (!System.IO.File.Exists(inputFilePath)) throw new ArgumentException($"File path does not exist: {inputFilePath}"); Interop interop = new Interop(); IpfcAsyncConnection connection = interop.Connection; if (connection == null) throw new Exception("Invalid Creo connection."); FileInformation fileInfo = new FileInformation(inputFilePath); IpfcBaseSession session = interop.Session; Interop.ClearSessionCache(session); session.ChangeDirectory(fileInfo.directory); // Apply DWG Settings Interop.ApplySettigns(session, "dwgSettings"); try { IpfcModel model = interop.GetModel(inputFilePath); if (model == null) throw new Exception("Model could not be retrieved."); if (model.Type != (int)EpfcModelType.EpfcMDL_DRAWING) throw new ArgumentException("Given model is not of type Drawing"); // Using Creo API for DWG Export IpfcDWG3DExportInstructions dwgExportInstructions = new CCpfcDWG3DExportInstructions().Create(); if (File.Exists(fileInfo.exportedDWGFilePath)) { File.SetAttributes(fileInfo.exportedDWGFilePath, FileAttributes.Normal); System.IO.File.Delete(fileInfo.exportedDWGFilePath); } // Export DWG Logger.Info("Trying to export DWG."); model.Export(fileInfo.exportedDWGFilePath, (IpfcExportInstructions)dwgExportInstructions); if (File.Exists(fileInfo.exportedDWGFilePath)) { Logger.Info("DWG Export successfully."); } if (File.Exists(fileInfo.dwgPathForVault)) { File.SetAttributes(fileInfo.dwgPathForVault, FileAttributes.Normal); File.Delete(fileInfo.dwgPathForVault); } System.IO.File.Move(fileInfo.exportedDWGFilePath, fileInfo.dwgPathForVault); // Ensure DWG file is created if (!System.IO.File.Exists(fileInfo.dwgPathForVault)) throw new Exception("DWG file was not created. Check Creo log for errors."); Logger.Info("DWG Export completed successfully."); connection.Disconnect(5); return fileInfo.dwgPathForVault; } catch (Exception ex) { try { Interop.ClearSessionCache(session); } catch { } throw; } }

I apply settings to creo like this:

public static void ApplySettigns(IpfcBaseSession session, string settingName) { ConfigReader configReader = new ConfigReader(); Dictionary<string, string> settings = new Dictionary<string, string>(); try { settings = configReader.GetSettings(settingName); } catch (ArgumentException ex) { Logger.Error(ex.Message); } if (settings.Count > 0) { foreach (KeyValuePair<string, string> setting in settings) { try { // configOptionName and configOptionValue session.SetConfigOption(setting.Key, setting.Value); } catch (Exception ex) { Logger.Error($"Could not set {setting.Key} because of: {ex.Message}"); } } } }

These are my settings but in the export log they seem not to be applied:

I much appreciate your help!

Re: Export 2D Drawing to DXF and DWG using VB API

Catalina — Tue, 25 Nov 2025 11:52:35 GMT

Hi @JW_12611872

Thank you for your question.

Your post appears well documented but has not yet received any response. I am replying to raise awareness. Hopefully, another community member will be able to help.

Also, feel free to add any additional information you think might be relevant. It sometimes helps to have screenshots to better understand what you are trying to do.

Best regards,

topic Re: Export 2D Drawing to DXF and DWG using VB API in Customization

Export 2D Drawing to DXF and DWG using VB API

Re: Export 2D Drawing to DXF and DWG using VB API