## On this page # Example 03 - C++ Last update: 16.07.2025 # C++ // CppStandaloneApplication.cpp : Defines the entry point for the console application. \#include "stdafx.h" \#include <stdlib.h> \#include <stdio.h> \#include <iostream> \#include <string> \#include <ctime> \#include <functional> \#include <assert.h> // Note - .tlh files will be generated from the .tlb files (above) once the project is compiled. // Visual Studio will incorrectly continue to report IntelliSense error messages however until it is restarted. \#include "zosapi.h" using namespace std; using namespace [ZOSAPI](namespace_z_o_s_a_p_i.xhtml); using namespace ZOSAPI_Interfaces; void handleError(std::string msg); void logInfo(std::string msg); void finishStandaloneApplication(IZOSAPI_ApplicationPtr TheApplication); bool fileExists(const wchar\_t* name) { FILE *file; errno_t err = _wfopen_s(&file, name, L"r"); if (err == 0) { fclose(file); return true; } else { return false; } } int RunApplication() { CoInitialize(NULL); // Create the initial connection class IZOSAPI_ConnectionPtr TheConnection(__uuidof([ZOSAPI\_Connection](class_z_o_s_a_p_i_1_1_z_o_s_a_p_i___connection.xhtml))); // Attempt to create a Standalone connection IZOSAPI_ApplicationPtr TheApplication = TheConnection->CreateNewApplication(); if (TheApplication == nullptr) { handleError("An unknown error occurred!"); return -1; } // Check the connection status if (!TheApplication->IsValidLicenseForAPI) { handleError("License check failed!"); return -1; } if (TheApplication->Mode != ZOSAPI_Mode::ZOSAPI_Mode_Server) { handleError("Standlone application was started in the incorrect mode!"); return -1; } IOpticalSystemPtr TheSystem = TheApplication->PrimarySystem; // Add your custom code here... // creates a new API directory CreateDirectory(_bstr_t(TheApplication->SamplesDir + "\\\\API"), NULL); CreateDirectory(_bstr_t(TheApplication->SamplesDir + "\\\\API\\\\CPP"), NULL); // Set up primary optical system TheSystem = TheApplication->PrimarySystem; _bstr_t sampleDir = TheApplication->SamplesDir; // Open file _bstr_t testFile = sampleDir + (_bstr_t)"\\\\API\\\\CPP\\\\e01\_new\_file\_and\_quickfocus.zos"; if (!fileExists(testFile)) { cout << "You need to run Example 01 before running this example" << endl; \#if defined(\_DEBUG) // keeps console open when in debug mode system("pause"); \#endif return false; } TheSystem->LoadFile(testFile, false); _bstr_t testFile2 = sampleDir + (_bstr_t)"\\\\API\\\\CPP\\\\e03\_open\_file\_and\_optimise.zos"; TheSystem->SaveAs(testFile2); // Get Surfaces ILensDataEditorPtr TheLDE = TheSystem->LDE; ILDERowPtr Surface_1 = TheLDE->GetSurfaceAt(1); ILDERowPtr Surface_2 = TheLDE->GetSurfaceAt(2); ILDERowPtr Surface_3 = TheLDE->GetSurfaceAt(3); // Make thicknesses and radii variable Surface_1->ThicknessCell->MakeSolveVariable(); Surface_2->ThicknessCell->MakeSolveVariable(); Surface_2->RadiusCell->MakeSolveVariable(); Surface_3->ThicknessCell->MakeSolveVariable(); // Merit functions IMeritFunctionEditorPtr TheMFE = TheSystem->MFE; IMFERowPtr Operand_1 = TheMFE->GetOperandAt(1); Operand_1->ChangeType(MeritOperandType_ASTI); Operand_1->Target = 0.0; Operand_1->Weight = 10.0; IMFERowPtr Operand_2 = TheMFE->InsertNewOperandAt(2); Operand_2->ChangeType(MeritOperandType_COMA); Operand_2->Target = 0.0; Operand_2->Weight = 1.0; // Air min/max IMFERowPtr Operand_3 = TheMFE->AddOperand(); Operand_3->ChangeType(MeritOperandType_MNCA); Operand_3->Target = 0.5; Operand_3->Weight = 1.0; IEditorRowPtr castRow = Operand_3; castRow->GetCellAt(2)->IntegerValue = 1; castRow->GetCellAt(3)->IntegerValue = 3; IMFERowPtr Operand_4 = TheMFE->AddOperand(); Operand_4->ChangeType(MeritOperandType_MXCA); Operand_4->Target = 1000; Operand_4->Weight = 1.0; castRow = Operand_4; castRow->GetCellAt(2)->IntegerValue = 1; castRow->GetCellAt(3)->IntegerValue = 3; IMFERowPtr Operand_5 = TheMFE->AddOperand(); Operand_5->ChangeType(MeritOperandType_MNEA); Operand_5->Target = 0.5; Operand_5->Weight = 1.0; castRow = Operand_5; castRow->GetCellAt(2)->IntegerValue = 1; castRow->GetCellAt(3)->IntegerValue = 3; // Material min/max IMFERowPtr Operand_6 = TheMFE->AddOperand(); Operand_6->ChangeType(MeritOperandType_MNCG); Operand_6->Target = 3.0; Operand_6->Weight = 1.0; castRow = Operand_6; castRow->GetCellAt(2)->IntegerValue = 1; castRow->GetCellAt(3)->IntegerValue = 3; IMFERowPtr Operand_7 = TheMFE->AddOperand(); Operand_7->ChangeType(MeritOperandType_MXCG); Operand_7->Target = 15.0; Operand_7->Weight = 1.0; castRow = Operand_7; castRow->GetCellAt(2)->IntegerValue = 1; castRow->GetCellAt(3)->IntegerValue = 3; IMFERowPtr Operand_8 = TheMFE->AddOperand(); Operand_8->ChangeType(MeritOperandType_MNEG); Operand_8->Target = 3.0; Operand_8->Weight = 1.0; castRow = Operand_8; castRow->GetCellAt(2)->IntegerValue = 1; castRow->GetCellAt(3)->IntegerValue = 3; // Local optimisation till completion ILocalOptimizationPtr LocalOpt = TheSystem->Tools->OpenLocalOptimization(); LocalOpt->Algorithm = OptimizationAlgorithm_DampedLeastSquares; LocalOpt->Cycles = OptimizationCycles_Automatic; LocalOpt->NumberOfCores = 8; ISystemToolPtr baseTool = LocalOpt; baseTool->RunAndWaitForCompletion(); baseTool->Close(); // Hammer for 10 seconds IHammerOptimizationPtr HammerOpt = TheSystem->Tools->OpenHammerOptimization(); baseTool = HammerOpt; baseTool->RunAndWaitWithTimeout(10); baseTool->Cancel(); baseTool->WaitForCompletion(); baseTool->Close(); // Save and close TheSystem->Save(); // Clean up finishStandaloneApplication(TheApplication); return 0; } void handleError(std::string msg) { throw new exception(msg.c_str()); } void logInfo(std::string msg) { printf("%s", msg.c_str()); } void finishStandaloneApplication(IZOSAPI_ApplicationPtr TheApplication) { // Note - TheApplication will close automatically when this application exits, so this isn't strictly necessary in most cases if (TheApplication != nullptr) { TheApplication->CloseApplication(); } } int APIENTRY _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow) { return RunApplication(); } int _tmain(int argc, _TCHAR* argv[]) { return RunApplication(); } [ZOSAPI.ZOSAPI\_Connection](class_z_o_s_a_p_i_1_1_z_o_s_a_p_i___connection.xhtml) **Definition:** ZemaxService.cs:198 [ZOSAPI](namespace_z_o_s_a_p_i.xhtml) The ZOSAPI namespace contains classes for initially connecting to zemax. See also ZOSAPI_Connection,... **Definition:** IAS_FieldCurvatureAndDistortion.cs:5