ATL / WTL / STL

HWND hWnd = GetDlgItem(IDC_COMBO1);
char *pTest = new char[10];
strcpy(pTest,"prasad");
SendMessage(hWnd,CB_ADDSTRING,0,(LPARAM)(pTest));
delete []pTest;

Steve S wrote:

What's wrong with

SendMessage(hWnd, CB_ADDSTRING, 0, (LPARAM)_T("prasad"));

Steve S wrote:

I see no point in allocating a temporary anywhere you don't need to...

#define _WIN32_IE 0x0500    // IMarkupServices
#define _WIN32_DCOM         // CoInitializeEx(...)

#import "mshtml.tlb"    // guids

#include <windows.h>

#include <atlbase.h>    // CComPtr<>, CoInitializeEx, etc
#include <mshtml.h>     // MSHTML Object and Interfaces
#include <mshtmlc.h>    // IID_IMarkupServices
#include <assert.h>

// IID_IMarkupServices;
//    MIDL_INTERFACE("3050f4a0-98b5-11cf-bb82-00aa00bdce0b")

// Standard C++ Library
#include <iostream>

int main(int argc, char* argv[])
{
    HRESULT hr = S_OK;
    CComBSTR    error; 

    try
    {
        CComPtr< MSHTML::IHTMLDocument2 >    pDocument = NULL;
        CComPtr< IPersistStreamInit >          pStream = NULL;
        CComPtr< MSHTML::IMarkupServices >   pServices = NULL;
        CComPtr< MSHTML::IMarkupContainer > pContainer = NULL;
        //CComPtr< MSHTML::IHTMLLocation >   pLocation = NULL;

        CComBSTR title = L"", charset=L"";

        ///////////////////////////////////////////////////////////////////
        // Call CoInitialize to initialize the COM library
        hr = CoInitializeEx( NULL, COINIT_MULTITHREADED  );
        if( FAILED( hr ) ) {
            error = L"CoInitializeEx";
            throw error;
        }

        ///////////////////////////////////////////////////////////////////
        // Create a Document to bootstrap the process
        hr = pDocument.CoCreateInstance( CLSID_HTMLDocument );
        if( FAILED( hr ) ) {
            error = L"pDocument";
            throw error;
        }
    
        ///////////////////////////////////////////////////////////////////
        hr = pDocument->get_title( &title );
        if( FAILED( hr ) )
        {
            error = L"pDocument->get_title";
            throw error;
        }

        std::wcout << L"Title: ";
        std::wcout << (wchar_t*)title << std::endl;

        hr = pDocument->get_charset( &charset );
        if( FAILED( hr ) )
        {
            error = L"pDocument->get_charset";
            throw error;
        }

        std::wcout << L"Character Set: ";
        std::wcout << (wchar_t*)charset << std::endl;

        ///////////////////////////////////////////////////////////////////
        // Document->QueryInterface( __uuidof( IPersistStreamInit ) ) );
        hr = pDocument->QueryInterface( IID_IPersistStreamInit,
                                        reinterpret_cast<void**>( &pStream ) );
        if( FAILED( hr ) ) {
            error = L"pDocument.QueryInterface( IPersistStreamInit )";
            throw error;
        }
        pStream->InitNew();
        
        ///////////////////////////////////////////////////////////////////
        // Document->QueryInterface( __uuidof( MSHTML::IMarkupServices ) )
        hr = pDocument->QueryInterface( IID_IMarkupServices,
                                        reinterpret_cast<void**>( &pServices ) );
        //                                // NULL, CLSCTX_INPROC_SERVER );
        //MSHTML::IMarkupServices::CreateMarkupContainer
        if( FAILED( hr ) ) {
            error = L"pDocument->QueryInterface( IMarkupServices )";
            throw error;
        }

        // hr = Container.CoCreateInstance(CLSID_MarkupContainer);
        // if( FAILED( hr ) ) { goto COMPLETE; }

        // std::wcout << L"pDocument URL: ";
        // std::wcout << (wchar_t*)pLocation->toString() << std::endl;

    }

    catch( CComBSTR& e )
    {
        std::wcout << std::endl;
        std::wcout << L"COM Error: " << std::endl << L"  ";
        std::wcout << (wchar_t*)e << std::endl ;
        std::wcout << std::hex << L"  0x" <<hr;
        std::wcout << L" (Win32: " << std::dec << HRESULT_CODE( hr );
        std::wcout << L")" << std::endl;
    }

    CoUninitialize( );

    return HRESULT_CODE( hr );
}