1. SolidWorks API概述作为达索系统(Dassault Systèmes)旗下核心的CAD/CAE/CAM解决方案SolidWorks提供了完整的应用程序编程接口(API)体系。这套基于COM技术的接口允许开发者通过编程方式访问和操控SolidWorks的几乎所有功能模块从基础的零件建模到复杂的仿真分析流程都能实现自动化控制。API函数库按照功能模块划分为多个命名空间主要包括SolidWorks.Interop.sldworks核心建模功能SolidWorks.Interop.swconst枚举常量SolidWorks.Interop.swpublished发布相关SolidWorks.Interop.swmotion运动仿真SolidWorks.Interop.swsimulation有限元分析2. 开发环境配置2.1 开发工具准备推荐使用Visual Studio 2019/2022进行开发需安装SolidWorks API类型库随软件安装自动注册.NET Framework 4.7.2或.NET Core 3.1SolidWorks PDM API如需集成PDM系统在VS中添加引用时通过COM选项卡选择SolidWorks 2022 Type LibrarySolidWorks 2022 Constant Type Library2.2 基础项目模板using SolidWorks.Interop.sldworks; using SolidWorks.Interop.swconst; class Program { static void Main(string[] args) { SldWorks swApp new SldWorks(); swApp.Visible true; ModelDoc2 swModel swApp.NewDocument( C:\ProgramData\SolidWorks\SOLIDWORKS 2022\templates\Part.prtdot, (int)swDocumentTypes_e.swDocPART); // 后续操作代码... } }3. 核心API功能详解3.1 文档操作接口// 新建装配体 AssemblyDoc swAssy (AssemblyDoc)swApp.NewAssembly(); // 打开现有文件 ModelDoc2 swPart swApp.OpenDoc6( D:\Demo.sldprt, (int)swDocumentTypes_e.swDocPART, (int)swOpenDocOptions_e.swOpenDocOptions_Silent, , out int errors, out int warnings); // 保存选项设置 swModel.SetSaveFlag(); swModel.SaveAs3(D:\NewName.sldprt, (int)swSaveAsVersion_e.swSaveAsCurrentVersion, (int)swSaveAsOptions_e.swSaveAsOptions_Silent);3.2 几何建模接口// 创建拉伸特征 FeatureManager swFeatMgr swPart.FeatureManager; bool status swFeatMgr.FeatureExtrusion2( true, false, false, (int)swFeatureExtrusionDirections_e.swFeatureExtrusionDirection_Forward, (int)swEndConditions_e.swEndCondBlind, 0.1, 0, false, false, false, false, 0, 0, false, false, false, false, true, true, true, (int)swStartConditions_e.swStartSketchPlane, 0, false); // 参数化修改 Dimension swDim swPart.Parameter(D1Sketch1); swDim.SetValue3(0.05, (int)swInConfigurationOpts_e.swThisConfiguration, null);4. 高级应用场景4.1 批量工程图处理// 遍历文件夹处理工程图 void BatchProcessDrawings(string folderPath) { string[] files Directory.GetFiles(folderPath, *.slddrw); foreach (string file in files) { DrawingDoc swDraw (DrawingDoc)swApp.OpenDoc6(file, (int)swDocumentTypes_e.swDocDRAWING, (int)swOpenDocOptions_e.swOpenDocOptions_Silent, , out _, out _); // 更新所有视图 View[] views (View[])swDraw.GetViews(); foreach (View view in views) { view.UpdateView(); } // 导出PDF swDraw.SaveAs(file.Replace(.slddrw,.pdf)); } }4.2 运动仿真自动化// 设置运动算例 MotionStudy swMotion swAssy.GetMotionStudy(); swMotion.CreateNewStudy(Dynamic Analysis, (int)swMotionStudyType_e.swMotionStudyType_Dynamic); // 添加马达 MotionMotor swMotor swMotion.AddMotor( (int)swMotorType_e.swMotionMotorType_Rotary, Motor1, Component11, Edge1, 0, (int)swMotionMotorFunctionType_e.swMotionMotorFunctionType_Constant); swMotor.SetConstantSpeed(60); // RPM5. 调试与优化技巧5.1 错误处理机制try { // API操作代码 } catch (COMException ex) { int errCode swApp.GetLastErrorCode(); string errMsg swApp.GetLastErrorString(); Debug.WriteLine($SW Error {errCode}: {errMsg}); // 检查许可证状态 if (errCode (int)swFileLoadError_e.swFileLoadError_License) { MessageBox.Show(许可证获取失败请检查授权配置); } }5.2 性能优化建议对象缓存频繁访问的对象如FeatureManager应缓存引用批量操作使用EditRebuild3而非单个特征重建状态控制swApp.CommandInProgress true; // 批量操作... swApp.CommandInProgress false;内存管理及时释放COM对象Marshal.FinalReleaseComObject(swModel); GC.Collect();6. 典型问题解决方案6.1 版本兼容性问题// 早期绑定与后期绑定兼容方案 #if LATE_BINDING object swApp Activator.CreateInstance(Type.GetTypeFromProgID(SldWorks.Application)); #else SldWorks swApp new SldWorks(); #endif6.2 特征重建失败处理Feature swFeat swModel.FirstFeature(); while (swFeat ! null) { if (swFeat.Name.Contains(Error)) { swFeat.Select2(false, 0); swModel.Extension.DeleteSelection2( (int)swDeleteSelectionOptions_e.swDelete_Absorbed); } swFeat swFeat.GetNextFeature(); }7. 扩展开发方向7.1 自定义属性管理CustomPropertyManager swCustProp swModel.Extension.CustomPropertyManager[]; swCustProp.Add3(Material, (int)swCustomInfoType_e.swCustomInfoText, AISI 304, (int)swCustomPropertyAddOption_e.swCustomPropertyDeleteAndAdd);7.2 插件开发框架[ComVisible(true)] [Guid(YOUR_GUID_HERE)] public class MyAddin : ISwAddin { public bool ConnectToSW(object ThisSW, int Cookie) { _swApp (SldWorks)ThisSW; _cookie Cookie; // 添加自定义菜单 _swApp.AddFileSaveItem3(MySaveHook, (int)swFileSaveVersion_e.swSaveAsCurrentVersion, Cookie); return true; } // 实现其他接口方法... }对于需要深度集成SolidWorks的企业级应用建议采用WPF构建独立界面通过IPC机制与SolidWorks主进程通信。这种架构既能保持UI灵活性又能避免COM线程模型带来的稳定性问题 
长河君 · 2026/11/2 9:45:22 · 阅读 1.2k SolidWorks API开发指南：从基础到高级应用
1. SolidWorks API概述作为达索系统(Dassault Systèmes)旗下核心的CAD/CAE/CAM解决方案SolidWorks提供了完整的应用程序编程接口(API)体系。这套基于COM技术的接口允许开发者通过编程方式访问和操控SolidWorks的几乎所有功能模块从基础的零件建模到复杂的仿真分析流程都能实现自动化控制。API函数库按照功能模块划分为多个命名空间主要包括SolidWorks.Interop.sldworks核心建模功能SolidWorks.Interop.swconst枚举常量SolidWorks.Interop.swpublished发布相关SolidWorks.Interop.swmotion运动仿真SolidWorks.Interop.swsimulation有限元分析2. 开发环境配置2.1 开发工具准备推荐使用Visual Studio 2019/2022进行开发需安装SolidWorks API类型库随软件安装自动注册.NET Framework 4.7.2或.NET Core 3.1SolidWorks PDM API如需集成PDM系统在VS中添加引用时通过COM选项卡选择SolidWorks 2022 Type LibrarySolidWorks 2022 Constant Type Library2.2 基础项目模板using SolidWorks.Interop.sldworks; using SolidWorks.Interop.swconst; class Program { static void Main(string[] args) { SldWorks swApp new SldWorks(); swApp.Visible true; ModelDoc2 swModel swApp.NewDocument( C:\ProgramData\SolidWorks\SOLIDWORKS 2022\templates\Part.prtdot, (int)swDocumentTypes_e.swDocPART); // 后续操作代码... } }3. 核心API功能详解3.1 文档操作接口// 新建装配体 AssemblyDoc swAssy (AssemblyDoc)swApp.NewAssembly(); // 打开现有文件 ModelDoc2 swPart swApp.OpenDoc6( D:\Demo.sldprt, (int)swDocumentTypes_e.swDocPART, (int)swOpenDocOptions_e.swOpenDocOptions_Silent, , out int errors, out int warnings); // 保存选项设置 swModel.SetSaveFlag(); swModel.SaveAs3(D:\NewName.sldprt, (int)swSaveAsVersion_e.swSaveAsCurrentVersion, (int)swSaveAsOptions_e.swSaveAsOptions_Silent);3.2 几何建模接口// 创建拉伸特征 FeatureManager swFeatMgr swPart.FeatureManager; bool status swFeatMgr.FeatureExtrusion2( true, false, false, (int)swFeatureExtrusionDirections_e.swFeatureExtrusionDirection_Forward, (int)swEndConditions_e.swEndCondBlind, 0.1, 0, false, false, false, false, 0, 0, false, false, false, false, true, true, true, (int)swStartConditions_e.swStartSketchPlane, 0, false); // 参数化修改 Dimension swDim swPart.Parameter(D1Sketch1); swDim.SetValue3(0.05, (int)swInConfigurationOpts_e.swThisConfiguration, null);4. 高级应用场景4.1 批量工程图处理// 遍历文件夹处理工程图 void BatchProcessDrawings(string folderPath) { string[] files Directory.GetFiles(folderPath, *.slddrw); foreach (string file in files) { DrawingDoc swDraw (DrawingDoc)swApp.OpenDoc6(file, (int)swDocumentTypes_e.swDocDRAWING, (int)swOpenDocOptions_e.swOpenDocOptions_Silent, , out _, out _); // 更新所有视图 View[] views (View[])swDraw.GetViews(); foreach (View view in views) { view.UpdateView(); } // 导出PDF swDraw.SaveAs(file.Replace(.slddrw,.pdf)); } }4.2 运动仿真自动化// 设置运动算例 MotionStudy swMotion swAssy.GetMotionStudy(); swMotion.CreateNewStudy(Dynamic Analysis, (int)swMotionStudyType_e.swMotionStudyType_Dynamic); // 添加马达 MotionMotor swMotor swMotion.AddMotor( (int)swMotorType_e.swMotionMotorType_Rotary, Motor1, Component11, Edge1, 0, (int)swMotionMotorFunctionType_e.swMotionMotorFunctionType_Constant); swMotor.SetConstantSpeed(60); // RPM5. 调试与优化技巧5.1 错误处理机制try { // API操作代码 } catch (COMException ex) { int errCode swApp.GetLastErrorCode(); string errMsg swApp.GetLastErrorString(); Debug.WriteLine($SW Error {errCode}: {errMsg}); // 检查许可证状态 if (errCode (int)swFileLoadError_e.swFileLoadError_License) { MessageBox.Show(许可证获取失败请检查授权配置); } }5.2 性能优化建议对象缓存频繁访问的对象如FeatureManager应缓存引用批量操作使用EditRebuild3而非单个特征重建状态控制swApp.CommandInProgress true; // 批量操作... swApp.CommandInProgress false;内存管理及时释放COM对象Marshal.FinalReleaseComObject(swModel); GC.Collect();6. 典型问题解决方案6.1 版本兼容性问题// 早期绑定与后期绑定兼容方案 #if LATE_BINDING object swApp Activator.CreateInstance(Type.GetTypeFromProgID(SldWorks.Application)); #else SldWorks swApp new SldWorks(); #endif6.2 特征重建失败处理Feature swFeat swModel.FirstFeature(); while (swFeat ! null) { if (swFeat.Name.Contains(Error)) { swFeat.Select2(false, 0); swModel.Extension.DeleteSelection2( (int)swDeleteSelectionOptions_e.swDelete_Absorbed); } swFeat swFeat.GetNextFeature(); }7. 扩展开发方向7.1 自定义属性管理CustomPropertyManager swCustProp swModel.Extension.CustomPropertyManager[]; swCustProp.Add3(Material, (int)swCustomInfoType_e.swCustomInfoText, AISI 304, (int)swCustomPropertyAddOption_e.swCustomPropertyDeleteAndAdd);7.2 插件开发框架[ComVisible(true)] [Guid(YOUR_GUID_HERE)] public class MyAddin : ISwAddin { public bool ConnectToSW(object ThisSW, int Cookie) { _swApp (SldWorks)ThisSW; _cookie Cookie; // 添加自定义菜单 _swApp.AddFileSaveItem3(MySaveHook, (int)swFileSaveVersion_e.swSaveAsCurrentVersion, Cookie); return true; } // 实现其他接口方法... }对于需要深度集成SolidWorks的企业级应用建议采用WPF构建独立界面通过IPC机制与SolidWorks主进程通信。这种架构既能保持UI灵活性又能避免COM线程模型带来的稳定性问题