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Passing values by firing custom events

I have an ACtive-X called Picker.I want to fire event to the container application,so that the container app can receive an integer value when ever event is fired.Now i have created Custom event and iam passing an interger value to client.The problem is iam able to fire the event but not able to get correct integer value passes by the ACtive-x to the container.The listing is as follows.

Picker.h (ACtive-x module)

class CSelectorCtrl : public COleControl
{
     DECLARE_DYNCREATE(CSelectorCtrl)

// Event maps
     //{{AFX_EVENT(CSelectorCtrl)
     void FireSelectionChanged()
          {FireEvent(eventidSelectionChanged,EVENT_PARAM(VTS_NONE));}
     void FireAlert(int lIndex)
          {FireEvent(eventidAlert,EVENT_PARAM(VTS_I2));}
     //}}AFX_EVENT
     DECLARE_EVENT_MAP()

// Dispatch and event IDs
public:
     enum {
     //{{AFX_DISP_ID(CSelectorCtrl)
     dispidView = 1L,
     dispidColumnWidths = 2L,
     dispidSetDisplayList = 3L,
     dispidSetSelectionList = 4L,
     dispidCopy = 5L,
     dispidSort = 6L,
     dispidSelectAll = 7L,
     dispidReset = 8L,
     eventidSelectionChanged = 1L,
     eventidAlert = 9L,
     //}}AFX_DISP_ID
     };


};

Picker.cpp (ACtive-X module)

BEGIN_EVENT_MAP(CSelectorCtrl, COleControl)
     //{{AFX_EVENT_MAP(CSelectorCtrl)
     EVENT_CUSTOM("Alert", FireAlert, VTS_I2)
     //}}AFX_EVENT_MAP
END_EVENT_MAP()

void CSelectorCtrl::PassValue
{

FireAlert(entity.GetEntityId());// event fired along with int value

}

//////////////////////// container /////////////////////
Entity.h

class CEntityView : public CView
{

// Form Data
public:
     //{{AFX_DATA(CEntityView)
     enum { IDD = IDD_ENTITY_LIST };
     CSelector     m_Selector;// object of Active-x derived from CWnd
     //}}AFX_DATA

afx_msg void OnAlert(long lEntityID


};

 Entity.cpp

BEGIN_EVENTSINK_MAP(CEntityView, CFormView)
    //{{AFX_EVENTSINK_MAP(CEntityView)
     ON_EVENT(CEntityView, IDC_SELECTOR, 2 /* Alert */, OnAlert, VTS_I2)
     //}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CEntityView::OnAlert(int nEntityID)
{
// Here i get interger value from the ACtive-X

}

How do i get the correct value from the event fired by the ACtive-x

0
gymsam
Asked:
gymsam
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1 Solution
 
ShaunWildeCommented:
> ON_EVENT(CEntityView, IDC_SELECTOR, 2 /* Alert */, OnAlert, VTS_I4)
   
should this be VTS_I2 you seem to be using that elsewhere
0
 
gymsamAuthor Commented:
>>ON_EVENT(CEntityView, IDC_SELECTOR, 2 /* Alert */, >>OnAlert, VTS_I2)

sorry its VTS_I2 in my container application
   

   
0
 
ShaunWildeCommented:
void FireAlert(int lIndex)
         {FireEvent(eventidAlert,EVENT_PARAM(VTS_I2),lIndex);}

the docs seem to only show it with 2 parameters however it is actually got ... which means it has variable arguments imilar to printf

void AFX_CDECL FireEvent(DISPID dispid, BYTE* pbParams, ...);
   
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gymsamAuthor Commented:
Explain clearly what changes i have to do in my code.
0
 
ShaunWildeCommented:
your firealert code looks like this

> void FireAlert(int lIndex)
>         {FireEvent(eventidAlert,EVENT_PARAM(VTS_I2));}

I think it should look like this

void FireAlert(int lIndex)
        {FireEvent(eventidAlert,EVENT_PARAM(VTS_I2),lIndex);}

0
 
gymsamAuthor Commented:
Your are exactly right.thank you very much.Take you bite.
0
 
gymsamAuthor Commented:
Thanks for participating.
0

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