ATL / WTL / STL

c:\program files\microsoft visual studio\vc98\atl\include\atlcom.h(2395) : error C2504: 'MyConClass' : base class undefined<br />
see reference to class template instantiation 'ATL::CComObject;' being compiled

Error C2064: term does not evaluate to a function

//////////////////////////////////////////////////////////
#include "stdafx.h"
#include <hash_map>
#include <stdio>

using namespace std;

int main(int argc, char* argv[])
{

_int64 int64a=88888;

hash_map<_int64,int> amap;
hash_map<_int64,int>::iterator iter;

pair<const>apair;

amap.insert(apair(int64a,33)); //ERROR C2064
return 0;
}
////////////////////////////////////////////////////</const></stdio></hash_map>

<br />
<br />
<br />
#include <windows.h><br />
#include <atlbase.h><br />
#include <atlwin.h><br />
#include <ExDispID.h><br />
<br />
const UINT ID_WEBBROWSER = 100;<br />
<br />
//<br />
//<br />
//<br />
class CMainWindow : public CWindowImpl<CMainWindow>,<br />
                    public IDispEventImpl< ID_WEBBROWSER, CMainWindow ><br />
{<br />
public:<br />
    CMainWindow()<br />
    {<br />
        CWndClassInfo &wci = GetWndClassInfo();<br />
<br />
        if( !wci.m_atom )<br />
        {<br />
            // <br />
            wci.m_bSystemCursor = TRUE;<br />
        }<br />
<br />
        // <br />
        m_AxWindow = NULL;<br />
        m_pWebBrowser2 = NULL;<br />
    }<br />
<br />
    virtual ~CMainWindow(){}<br />
<br />
<br />
    // msg map<br />
    BEGIN_MSG_MAP(CMainWindow)<br />
        MESSAGE_HANDLER( WM_DESTROY, OnDestroy )<br />
        MESSAGE_HANDLER(WM_CREATE, OnCreate)<br />
    END_MSG_MAP()<br />
<br />
    BEGIN_SINK_MAP(CMainWindow)<br />
	    //Make sure the Event Handlers have __stdcall calling convention<br />
	    SINK_ENTRY( ID_WEBBROWSER, DISPID_DOCUMENTCOMPLETE, OnDocumentComplete )<br />
    END_SINK_MAP()<br />
<br />
    // Event handler<br />
	void __stdcall OnDocumentComplete( IDispatch *, VARIANT* )<br />
	{<br />
        <br />
	}<br />
<br />
private:<br />
    LRESULT OnCreate(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)<br />
    {<br />
        RECT rect;<br />
        GetClientRect(&rect);<br />
        // create host<br />
        HWND hWndContainer = m_AxWindow.Create( m_hWnd, rect, NULL, WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL, 0, ID_WEBBROWSER );<br />
<br />
        if( !hWndContainer )<br />
            return -1;<br />
<br />
        // create IE control<br />
        HRESULT hr;<br />
        hr = m_AxWindow.CreateControl( L"http://www.microsoft.com" );<br />
<br />
        if( FAILED( hr ) )<br />
            return -1;<br />
<br />
        // get IWebBrowser2<br />
        hr = m_AxWindow.QueryControl( IID_IWebBrowser2, (void**)&m_pWebBrowser2 );<br />
<br />
        if( SUCCEEDED(hr) )<br />
        {<br />
            // get typelib<br />
            hr = AtlGetObjectSourceInterface( m_pWebBrowser2, &m_libid, <br />
                                              &m_iid, &m_wMajorVerNum, &m_wMinorVerNum );<br />
<br />
            if( FAILED(hr) )<br />
                return -1;<br />
<br />
            // sink<br />
		    hr = DispEventAdvise(m_pWebBrowser2, &m_iid);<br />
<br />
<br />
            if( FAILED(hr) )<br />
                return -1;<br />
<br />
            CComBSTR url = L"http://www.microsoft.com";<br />
<br />
            hr = m_pWebBrowser2->Navigate( url,0,0,0,0 );<br />
<br />
            if( FAILED(hr) )<br />
                return -1;<br />
        }<br />
<br />
        return 0;<br />
    }<br />
<br />
    LRESULT OnDestroy(UINT , WPARAM , LPARAM , BOOL& )<br />
    {<br />
        // disconnect from source if connected<br />
		if( m_dwEventCookie != 0xFEFEFEFE )<br />
		    DispEventUnadvise(m_pWebBrowser2, &m_iid);<br />
<br />
        // free<br />
        m_pWebBrowser2.Release();<br />
<br />
        PostQuitMessage(0);<br />
        return 0;<br />
    }<br />
<br />
private:<br />
    //<br />
    CAxWindow m_AxWindow;<br />
    CComPtr<IWebBrowser2> m_pWebBrowser2; // for COM<br />
};<br />
<br />
//<br />
//<br />
//<br />
int APIENTRY _tWinMain(HINSTANCE hInstance,<br />
                     HINSTANCE hPrevInstance,<br />
                     LPTSTR    lpCmdLine,<br />
                     int       nCmdShow)<br />
{<br />
	UNREFERENCED_PARAMETER(hPrevInstance);<br />
	UNREFERENCED_PARAMETER(lpCmdLine);<br />
	<br />
	CMainWindow wnd;<br />
<br />
    wnd.Create( NULL, NULL, NULL, WS_OVERLAPPEDWINDOW );<br />
<br />
    if( !wnd )<br />
        return FALSE;<br />
<br />
    wnd.CenterWindow();<br />
    wnd.ShowWindow( nCmdShow );<br />
    wnd.UpdateWindow();<br />
<br />
    MSG msg;<br />
<br />
	// Main message loop:<br />
	while (GetMessage(&msg, NULL, 0, 0))<br />
	{<br />
		TranslateMessage(&msg);<br />
		DispatchMessage(&msg);<br />
	}<br />
<br />
	return (int) msg.wParam;<br />
}<br />

std::vector<myclass> vec;
//...
MyClass & get_selected()
{
	std::list<myclass>::iterator it=vec.begin();
	for (;it!=vec.end();++it) {
		if (it->is_selected())
			return &*it;  // Is it the address of the element in the vector,
                                      // and is it safe?
	}

	return NULL;
}