I have 3rd party . OCX file. which loads in HTML scripts and do desired work

Gaurav__Kapoor

Below Steps I have used while creating a Wrapper:

1: In visual Studio-> VC++-CLR-ClassLibrary project
2: Project add Reference (.ocx file)
3: Ref: i am abe to see Interop.Filelib.1.0
4: now in Project.h i am trying to use Filelib but not able to create any object or instance.

While i tried to create an Activex project and added .ocx file getting below stuff and i am not able to understand how to use it and create an wrapper for C#.

class CDNXCardReaderX : public CWnd
{
protected:
DECLARE_DYNCREATE(CDNXCardReaderX)
public:
CLSID const& GetClsid()
{
static CLSID const clsid
= { 0x222BBB5D, 0xE9FC, 0x4EB6, { 0x9E, 0xD0, 0x41, 0x10, 0x2C, 0x95, 0xC0, 0x3A } };
return clsid;
}
virtual BOOL Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle,
const RECT& rect, CWnd* pParentWnd, UINT nID,
CCreateContext* pContext = NULL)
{
return CreateControl(GetClsid(), lpszWindowName, dwStyle, rect, pParentWnd, nID);
}

BOOL Create(LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd,
UINT nID, CFile* pPersist = NULL, BOOL bStorage = FALSE,
BSTR bstrLicKey = NULL)
{
return CreateControl(GetClsid(), lpszWindowName, dwStyle, rect, pParentWnd, nID,
pPersist, bStorage, bstrLicKey);
}

// Attributes
public:

// Operations
public:

long OpenSessionSync(long Timeout)
{
long result;
static BYTE parms[] = VTS_I4 ;
InvokeHelper(0x2d, DISPATCH_METHOD, VT_I4, (void*)&result, parms, Timeout);
return result;
}

I am totally clueless on what approach shall i use to create object and call these functions.

Lost User

That is MFC code: MFC Desktop Applications | Microsoft Docs[^]. You can also go back to wherever you got the library to see if they have any documentation. I also have a suspicion that CLR and MFC do not mix.

Gaurav__Kapoor

I got your point. here i tried to get the object from my ocx and tried to access the functions but I am failing to do so i feel the issue is because of

IMPLEMENT_DYNCREATE(CMFCActiveXControl1Ctrl, COleControl)

looking for a sample code if any.

Lost User

Gaurav__Kapoor wrote:

i feel the issue is because of

Forget what you feel and study the documentation. That is the only way to understand the code.