Hide Table of Contents

Get Spline Points Example (C++ COM)

This example shows how to get the points on a spline using IInterface and SafeDoubleArray templates.

Sample.cpp: console application:

///////////////////////////////////////////////////////////////////////

//

// Preconditions:

//            (1) Model document containing a sketch of spline is open.

//            (2) The sketch of spline in the FeatureManager design tree is selected.

//

// Postconditions: None

//

// NOTE: Scroll down to see the code for the Sample.h, resource.h,  

//       smartvars.h, and stdafx.h header files.

///////////////////////////////////////////////////////////////////////

 

#include "stdafx.h"

#include "Sample.h"

#ifdef _DEBUG

#define new DEBUG_NEW

#endif

 

#import "sldworks.tlb" no_namespace raw_interfaces_only

#import "swconst.tlb" no_namespace

#include "smartvars.h"

 

// The application object

CWinApp theApp;

 

using namespace std;

 

int _tmain(int argc, TCHAR* argv[], TCHAR* envp[])

{

int nRetCode = 0;

 

// Initialize MFC and print and error on failure

if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0))

{

// TODO: Change error code to suit your needs

_tprintf(_T("Fatal Error: MFC initialization failed\n"));

nRetCode = 1;

}

else

{

//Initialize COM

::CoInitialize(NULL);{

ISldWorksPtr iApp;

iApp.CreateInstance(L"SldWorks.Application", NULL, CLSCTX_LOCAL_SERVER);

 

IModelDoc2Ptr iDoc;

iApp->get_IActiveDoc2(&iDoc);

 

ISelectionMgrPtr iSelMgr;

iDoc->get_ISelectionManager(&iSelMgr);

 

IDispatchPtr iDisp;

iSelMgr->GetSelectedObject6(1, -1, &iDisp);

 

IFeaturePtr iFeat(iDisp);

iDisp = NULL;

 

iFeat->GetSpecificFeature2(&iDisp);

ISketchPtr iSketch(iDisp);

iDisp = NULL;

 

VARIANT vSplines;

iSketch->GetSplinesInterpolate(&vSplines);

 

SafeDoubleArray arrSplines(vSplines);

for (int idx = 0; idx < arrSplines.getSize(); idx++)

{

::AfxTrace("arrSplines(%d) = %f\n", idx, arrSplines[idx]);

}

}

//Initialize COM

::CoUninitialize();

}

return nRetCode;

}

 

Sample.h: header file

#pragma once

 

#include "resource.h"

resource.h: header file:

//{{NO_DEPENDENCIES}}

// Microsoft Visual C++ generated include file.

// Used by Sample.rc

//

#define IDS_APP_TITLE 103

// Next default values for new objects

//

#ifdef APSTUDIO_INVOKED

#ifndef APSTUDIO_READONLY_SYMBOLS

#define _APS_NEXT_RESOURCE_VALUE 101

#define _APS_NEXT_COMMAND_VALUE 40001

#define _APS_NEXT_CONTROL_VALUE 1000

#define _APS_NEXT_SYMED_VALUE 101

#endif

#endif

 

smartvars.h: header file:

template <class T,int type> class SafeArray

{

public:

SafeArray(VARIANT *input):

m_input(input),

m_access(false),

m_bCreate(false),

m_pSafeArray(NULL),

m_arrayData(NULL),

m_result(S_OK)

{

if(m_input != NULL)

{

if (V_VT(m_input) != VT_EMPTY)

{

m_pSafeArray =  V_ARRAY (m_input);

m_result =  SafeArrayAccessData ( m_pSafeArray, (void HUGEP**)&m_arrayData);

m_access = m_result == S_OK ;

}

else

m_access = true;

}

else

{

ASSERT(FALSE);

m_input = &m_target;

}

}

SafeArray(const VARIANT &input) :

m_access(true),

m_bCreate(false),

m_pSafeArray(NULL),

m_arrayData(NULL),

m_result(S_OK)

{

m_input = (VARIANT *) &input;

if (V_VT(m_input) != VT_EMPTY)

{

m_pSafeArray =  V_ARRAY (m_input);

m_result =  SafeArrayAccessData ( m_pSafeArray, (void HUGEP**)&m_arrayData);

m_access = m_result == S_OK ;

}

else

m_access = true;

}

SafeArray(unsigned int size,unsigned int dims = 1):

m_input(&m_target),

m_access(false),

m_bCreate(true),

m_pSafeArray(NULL),

m_arrayData(NULL),

m_result(S_OK)

{

ASSERT(size >= 0);

if(size > 0)

{

m_rgsabound[0].lLbound = 0;

m_rgsabound[0].cElements = (int) size;

m_pSafeArray =  SafeArrayCreate(type, (int)dims, m_rgsabound);

V_VT(m_input) = VT_ARRAY | type;

m_result = SafeArrayAccessData( m_pSafeArray, (void HUGEP**)&m_arrayData);

m_access = m_result == S_OK ;

if(!m_access)

V_VT(m_input) = VT_EMPTY;

}

else

{

V_VT(m_input) = VT_EMPTY;

m_access = true;

}

}

 

inline HRESULT status(){return m_result;}

inline int getSize(int index = 0) {return (m_access&&m_pSafeArray)?m_pSafeArray->rgsabound[index].cElements:0;}

 

~SafeArray(){UnaccessData();}

 

operator T* () {ASSERT(m_access);return m_arrayData;}

operator VARIANT () {ASSERT(m_access);UnaccessData(); return *m_input;}

T & operator[](int i) {ASSERT(m_access&&m_arrayData);return m_arrayData[i];}

private:

void UnaccessData(){

if(m_access){

m_result = SafeArrayUnaccessData( m_pSafeArray );

if(m_bCreate && m_result == S_OK)

V_ARRAY(m_input) = m_pSafeArray;

m_access = false;

}

}

bool m_bCreate;

bool m_access;

VARIANT *m_input;

VARIANT m_target;

T *m_arrayData ;  

SAFEARRAY *m_pSafeArray;

SAFEARRAYBOUND  m_rgsabound[1];

HRESULT m_result;

};

typedef SafeArray<double,       VT_R8>       SafeDoubleArray ;

typedef SafeArray<long,         VT_I4>       SafeLongArray ;

typedef SafeArray<BSTR,         VT_BSTR>     SafeBSTRArray ;

typedef SafeArray<LPDISPATCH,   VT_DISPATCH> SafeDISPATCHArray;

typedef SafeArray<LPVARIANT,    VT_VARIANT>  SafeVARIANTArray;

 

stdafx.h: header file

// stdafx.h : include file for standard-system include files

// or project-specific include files that are used frequently, but

// are changed infrequently

//

 

#pragma once

 

#include <iostream>

#include <tchar.h>

#define _ATL_CSTRING_EXPLICIT_CONSTRUCTORS // some CString constructors will be explicit

 

#ifndef VC_EXTRALEAN

#define VC_EXTRALEAN // Exclude rarely-used stuff from Windows headers

#endif

 

#include <afx.h>

#include <afxwin.h>         // MFC core and standard components

#include <afxext.h>         // MFC extensions

#include <afxdtctl.h>       // MFC support for Internet Explorer 4 Common Controls

#ifndef _AFX_NO_AFXCMN_SUPPORT

#include <afxcmn.h>         // MFC support for Windows Common Controls

#endif // _AFX_NO_AFXCMN_SUPPORT

 

// TODO: reference additional headers your program requires here



Provide feedback on this topic

SOLIDWORKS welcomes your feedback concerning the presentation, accuracy, and thoroughness of the documentation. Use the form below to send your comments and suggestions about this topic directly to our documentation team. The documentation team cannot answer technical support questions. Click here for information about technical support.

* Required

 
*Email:  
Subject:   Feedback on Help Topics
Page:   Get Spline Points Example (C++ COM)
*Comment:  
*   I acknowledge I have read and I hereby accept the privacy policy under which my Personal Data will be used by Dassault Systèmes

Print Topic

Select the scope of content to print:



x

We have detected you are using a browser version older than Internet Explorer 7. For optimized display, we suggest upgrading your browser to Internet Explorer 7 or newer.

 Never show this message again
x

Web Help Content Version: API Help (English only) 2010 SP05

To disable Web help from within SOLIDWORKS and use local help instead, click Help > Use SOLIDWORKS Web Help.

To report problems encountered with the Web help interface and search, contact your local support representative. To provide feedback on individual help topics, use the “Feedback on this topic” link on the individual topic page.