#pragma once
// COpenCascadeCtrl

class COpenCascadeCtrl : public CStatic
{
    DECLARE_DYNAMIC(COpenCascadeCtrl)

public:
    COpenCascadeCtrl(Handle_Graphic3d_WNTGraphicDevice theGD);
    virtual ~COpenCascadeCtrl();

    Handle_AIS_InteractiveContext GetAIC() const {return mAISContext;}
    Handle_V3d_View GetView() const { return mActiveView; }

protected:
    DECLARE_MESSAGE_MAP()
public:
    afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
    afx_msg void OnPaint();

private:
    Handle_Graphic3d_WNTGraphicDevice theGraphicDevice;
    Handle_V3d_View mActiveView;
    Handle_V3d_Viewer mActiveViewer;
    Handle_AIS_InteractiveContext mAISContext;

};

// OpenCascadeCtrl.cpp : implementation file
//

#include "stdafx.h"
#include "OpenCascadeCtrl.h"


// COpenCascadeCtrl

IMPLEMENT_DYNAMIC(COpenCascadeCtrl, CStatic)

COpenCascadeCtrl::COpenCascadeCtrl(Handle_Graphic3d_WNTGraphicDevice theGD)
: theGraphicDevice(theGD)
{

}

COpenCascadeCtrl::~COpenCascadeCtrl()
{
}


BEGIN_MESSAGE_MAP(COpenCascadeCtrl, CStatic)
    ON_WM_CREATE()
    ON_WM_PAINT()
END_MESSAGE_MAP()

// COpenCascadeCtrl message handlers
int COpenCascadeCtrl::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
    if (CStatic::OnCreate(lpCreateStruct) == -1)
        return -1;


    mActiveViewer = new V3d_Viewer(theGraphicDevice, Standard_ExtString("OpenCascadeCtrl"));
    mActiveViewer->SetDefaultLights();
    mActiveViewer->SetLightOn();

    mActiveView = mActiveViewer->CreateView();

    Handle(WNT_Window) aWNTWindow = new WNT_Window(theGraphicDevice, GetSafeHwnd(), Quantity_NOC_GRAY);
    aWNTWindow->SetDoubleBuffer(Standard_False);

    mActiveView->SetWindow(aWNTWindow);


    mAISContext = new AIS_InteractiveContext(mActiveViewer);
    mAISContext->SetDisplayMode(AIS_Shaded, false);

    return 0;
}


void COpenCascadeCtrl::OnPaint()
{
    CPaintDC dc(this); // device context for painting
    // TODO: Add your message handler code here
    // Do not call CStatic::OnPaint() for painting messages
    mActiveView->Redraw();
}

1     CRect rect;
2     GetDlgItem(IDC_STATIC_LOC)->GetWindowRect(&rect);
3     ScreenToClient(&rect);
4     m_OpenCascadeCtr->Create(_T(""), WS_CHILD|WS_VISIBLE, rect, this, IDC_STATIC_LOC);