该工程为在保存时执行开发的功能，函数入口点ufput。其他还有新建、打开、另存等都可以加入开发的操作，具体看UF_EXIT下的介绍。
用户出口是一个可选特性，允许你在NX中某些预定义的位置(或出口)自动运行Open C API程序。如果你进入其中一个出口，NX会检查你是否定义了指向Open C API程序位置的指针。如果定义了指针，NX将运行Open C API程序。指针是一个环境变量。
注意：
一定要设置环境变量指向自己生成的DLL。例如：USER_FILE=E:\workspace\Infore\tcnx_project\application\tcnx_project.dll
1 // Mandatory UF Includes 2 #include 3 #include 4 #include 5 #include 6 7 // Internal+External Includes 8 #include 9 #include 10 #include 11 #include 12 #include 13 #include 14 #include 15 #include 16 #include 17 #include 18 #include 19 #include 20 21 #include 22 #include 23 #include 24 #include 25 26 // Std C++ Includes 27 #include 28 #include 29 #include 30 #include <string> 31 #include 32 #include 33 #include 34 #include 35 36 #include 37 #undef CreateDialog 38 #pragma comment(lib,"shell32.lib") 39 40 using namespace NXOpen; 41 using std::string; 42 using std::exception; 43 using std::stringstream; 44 using std::endl; 45 using std::cout; 46 using std::cerr; 47 48 49 //------------------------------------------------------------------------------ 50 // Unload Handler 51 //------------------------------------------------------------------------------ 52 extern "C" DllExport int ufusr_ask_unload() 53 { 54 return (int)NXOpen::Session::LibraryUnloadOptionImmediately;// 调试用 55 //return (int)NXOpen::Session::LibraryUnloadOptionAtTermination;// 程序发布用 56 //return (int)NXOpen::Session::LibraryUnloadOptionExplicitly; 57 } 58 59 int exportDwg2PDF(double &xDimension, double &yDimension, std::string &waterRemark, tag_t &sheetTAG, std::string &exportPath, bool appendStatus) 60 { 61 try{ 62 if (xDimension < 200 || yDimension < 200 || sheetTAG == NULL_TAG || exportPath.empty() == true) 63 return -1; 64 65 NXOpen::Session *theSession = NXOpen::Session::GetSession(); 66 NXOpen::Part *workPart(theSession->Parts()->Work()); 67 NXOpen::Part *displayPart(theSession->Parts()->Display()); 68 NXOpen::PrintPDFBuilder *printPDFBuilder1; 69 printPDFBuilder1 = workPart->PlotManager()->CreatePrintPdfbuilder(); 70 71 printPDFBuilder1->SetScale(1.0); 72 printPDFBuilder1->SetSize(NXOpen::PrintPDFBuilder::SizeOptionScaleFactor); 73 printPDFBuilder1->SetOutputText(NXOpen::PrintPDFBuilder::OutputTextOptionPolylines); 74 printPDFBuilder1->SetXDimension(xDimension); 75 printPDFBuilder1->SetYDimension(yDimension); 76 printPDFBuilder1->SetColors(NXOpen::PrintPDFBuilder::ColorBlackOnWhite); 77 printPDFBuilder1->SetWidths(NXOpen::PrintPDFBuilder::WidthCustomThreeWidths); 78 printPDFBuilder1->SetRasterImages(true); 79 printPDFBuilder1->SetImageResolution(NXOpen::PrintPDFBuilder::ImageResolutionOptionHigh); 80 printPDFBuilder1->SetAddWatermark(true); 81 printPDFBuilder1->SetWatermark(waterRemark.c_str()); 82 printPDFBuilder1->SetAppend(appendStatus); 83 84 std::vector sheets1(1); 85 NXOpen::Drawings::DrawingSheet *drawingSheet1(dynamic_cast(NXOpen::NXObjectManager::Get(sheetTAG))); 86 sheets1[0] = drawingSheet1; 87 printPDFBuilder1->SourceBuilder()->SetSheets(sheets1); 88 printPDFBuilder1->SetFilename(exportPath); 89 90 NXOpen::NXObject *nXObject1; 91 nXObject1 = printPDFBuilder1->Commit(); 92 printPDFBuilder1->Destroy(); 93 return 0; 94 } 95 catch (const exception& e2){ 96 UI::GetUI()->NXMessageBox()->Show("Exception", NXOpen::NXMessageBox::DialogTypeError, e2.what()); 97 throw; 98 } 99 }100 101 int getSheetInfos()102 {103 // 获取显示部件及图纸信息104 int _errCode = 0;105 tag_t dispTAG = UF_PART_ask_display_part();106 char part_fspec[MAX_FSPEC_BUFSIZE] = { 0 };107 if (_errCode = UF_PART_ask_part_name(dispTAG, part_fspec) != 0) return _errCode;108 109 std::string strPartName(part_fspec);110 transform(strPartName.begin(), strPartName.end(), strPartName.begin(), ::tolower);111 if (strPartName.find("dwg") == string::npos) return -1;112 113 int num_draws = 0;114 tag_t *drawTAGs = nullptr;115 if (_errCode = UF_DRAW_ask_drawings(&num_draws, &drawTAGs) != 0)116 return _errCode;117 118 string export_path = strPartName.substr(0, strPartName.find_last_of("."));119 for (int idx = 0; idx < num_draws; idx++){120 // 导出PDF121 UF_DRAW_info_t drawInfos;122 _errCode = UF_DRAW_ask_drawing_info(drawTAGs[0], &drawInfos);123 double xDimension = drawInfos.size.custom_size[0];124 double yDimension = drawInfos.size.custom_size[1];125 _errCode = exportDwg2PDF(xDimension, yDimension, string("huangym1\r\n2023-03-25"), drawTAGs[idx], export_path + ".pdf", false);126 string tempStr(export_path + ".pdf");127 128 // 打开PDF129 USES_CONVERSION;130 const WCHAR * cLineChar = A2W(tempStr.c_str());131 132 SHELLEXECUTEINFO sei;133 ZeroMemory(&sei, sizeof(SHELLEXECUTEINFO));//使用前最好清空134 sei.cbSize = sizeof(SHELLEXECUTEINFO);//管理员权限执行cmd，最基本的使用与 ShellExecute 类似135 sei.lpFile = cLineChar;136 sei.nShow = SW_SHOW;137 sei.lpVerb = _T("open");138 BOOL bResult = ShellExecuteEx(&sei);139 if (bResult)//执行成功140 {141 if (sei.hProcess)//指定 SEE_MASK_NOCLOSEPROCESS 并其成功执行，则 hProcess 将会返回执行成功的进程句柄142 WaitForSingleObject(sei.hProcess, INFINITE);//等待执行完毕143 }144 }145 if (drawTAGs){146 UF_free(drawTAGs);147 drawTAGs = nullptr;148 }149 return _errCode;150 }151 152 //========================153 // 保存操作入口点函数154 //========================155 extern "C" DllExport void ufput()156 {157 try{158 if (UF_initialize()) return;159 160 getSheetInfos();161 162 UF_terminate();163 }164 catch (const NXException& e1)165 {166 UI::GetUI()->NXMessageBox()->Show("NXException", NXOpen::NXMessageBox::DialogTypeError, e1.Message());167 }168 catch (const exception& e2)169 {170 UI::GetUI()->NXMessageBox()->Show("Exception", NXOpen::NXMessageBox::DialogTypeError, e2.what());171 }172 catch (...)173 {174 UI::GetUI()->NXMessageBox()->Show("Exception", NXOpen::NXMessageBox::DialogTypeError, "Unknown Exception.");175 }176 }