Hidden ActiveX Params

I want to dynamically create a third-party ActiveX control. I am having problems getting the hidden param's set -- as they do not have a published set methods.And? What is your question?

In case a property has no setter it means it was designed to be read-only (not hidden :)). Or to be set via some other method call. Read documentation on activex, ask support service... Do it civilized way. :)

My question is how could I set the values for those hidden properties. There's no documentation. They are hidden, not readonly.Any library/component has its own design. And client side must obey it. As I already told you, you either find a documented way (referring to documentation or support service) or abandone it and move to another component of a similar functionality.

I dont believe the web component breaking could have any sense.

I am not trying to break the control. I am only interested in knowing how Internet Explorer could have initialised the control, by simply proving the param-value pairs.

I have seen artilces on CodeProject that show how to expose these hidden properties. I want to know how to set a value for them.

To get help from the technical support of the control, there's a very, very heafty fee to pay -- which is not possibly for a developer like myself. I am not trying to break their control. All I want is to host the control in my application, instead of Internet Explorer. It is, afterall, an ActiveX control.

If you could help, please let me know. Any help will be highly appreciated. Many thanks!

I am not trying to break the control. I am only interested in knowing how Internet Explorer could have initialised the control, by simply proving the param-value pairs.:D I got you at last.

IE queries an object for IPropertyBag interface and uses its Read and Write methods.

Hope this will help. :wave:

Igor,

Many thanks for your help -- very much appreciated.

I am in the process of implementing a class that supports IPropertyBag. If anybody knows of any good, free implementation out there, please let me know. Thanks!

Boon

CDialog will take care about this, to provide a site for activex and activate it.

If I am creating the ActiveX at runtime, I can do

CoCreateInstance ( guid, NULL, CLSCTX_INPROC_SERVER,
IID_IUnknown, (void**) &pIUnknown );

and

IPersistPropertyBag* pIPersistPropertyBag;
pIUnknown->QueryInterface( IID_IPersistPropertyBag,
(void**)&pIPersistPropertyBag );

to get a reference of IPersistPropertyBag. When inserting the ActiveX to a MFC Dialog Form at design time, I have a CWnd-derived class wrapping the ActiveX. My question is:

How can I get a reference of IPersistPropertyBag then?

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

The following is the CWnd-derived wrapper class for the ActiveX generated by MFC ClassWizard.

class CCSX : public CWnd
{
protected:
DECLARE_DYNCREATE(CCSX)
public:
CLSID const& GetClsid()
{
static CLSID const clsid
= { 0xb9b2ee1a, 0xe314, 0x4338, { 0xa3, 0x5, 0xbe, 0x84, 0x5e, 0xac, 0xb1, 0x12 } };
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:
CString GetBestbuyprice();
void SetBestbuyprice(LPCTSTR);
CString GetBestsellprice();
void SetBestsellprice(LPCTSTR);
CString GetCloseprice();
void SetCloseprice(LPCTSTR);
CString GetDate();
void SetDate(LPCTSTR);
CString GetLastdoneprice();
void SetLastdoneprice(LPCTSTR);
short GetLotsize();
void SetLotsize(short);
CString GetReferenceprice();
void SetReferenceprice(LPCTSTR);
CString GetStockcode();
void SetStockcode(LPCTSTR);
CString GetStockname();
void SetStockname(LPCTSTR);
CString GetStockstatus();
void SetStockstatus(LPCTSTR);
CString GetTime();
void SetTime(LPCTSTR);
CString GetUpperlimitprice();
void SetUpperlimitprice(LPCTSTR);
CString GetLowerlimitprice();
void SetLowerlimitprice(LPCTSTR);
CString GetBestbuyprice2();
void SetBestbuyprice2(LPCTSTR);
CString GetBestbuyprice3();
void SetBestbuyprice3(LPCTSTR);
CString GetBestsellprice2();
void SetBestsellprice2(LPCTSTR);
CString GetBestsellprice3();
void SetBestsellprice3(LPCTSTR);
short GetStocksector();
void SetStocksector(short);
CString GetMarketstatus();
void SetMarketstatus(LPCTSTR);
CString GetNewsid();
void SetNewsid(LPCTSTR);
short GetNewssource();
void SetNewssource(short);
CString GetVersion();
void SetVersion(LPCTSTR);

// Operations
public:
long SearchStock(LPCTSTR lpszStock);
void KeyPressed(short nKey);
};

Many thanks!

I am going to try it now!!!

By the way, the ActiveX is called CyberStock 250.

Nobody knows the answer to my last question?