attach ActiveX into win32 application - c++

Question

i create win32 application and i want to attach an ActiveX into so i proceed like this
#include "stdafx.h"
#include "test.h"
#include <Windows.h>
#include <iostream>
#include <exdisp.h>
#using <System.dll>
using namespace std;
using namespace System;
// Constants
namespace {
TCHAR * windowClassName = TEXT("win32host");
TCHAR * windowTitle = TEXT("Win32 interface");
int windowWidth = 600;
int windowHeight = 600;
}
HWND container;
LRESULT CALLBACK WindowProc( HWND hWnd, UINT messg, WPARAM wParam, LPARAM lParam )
{
switch(messg)
{
case WM_SIZE:
// Redimensionnement du conteneur quand la taille de la fenêtre change:
MoveWindow(container,0,0,LOWORD(lParam), HIWORD(lParam),1);
break;
case WM_CLOSE:
// Détruire la fenêtre principale:
DestroyWindow(hWnd);
break;
case WM_DESTROY:
// Envoyer le message de sortie du programme:
PostQuitMessage( 0 );
break;
default:
//Retour:
return( DefWindowProc( hWnd, messg, wParam, lParam ) );
}
return 0;
}
int CALLBACK WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
// Register our Window class
WNDCLASS wndclass;
wndclass.style = CS_VREDRAW | CS_HREDRAW;
wndclass.lpfnWndProc = &WindowProc;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = hInstance;
wndclass.hIcon = NULL;
wndclass.hCursor = NULL;
wndclass.hbrBackground = reinterpret_cast <HBRUSH> (COLOR_BTNFACE + 1);
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName =windowClassName;
::RegisterClass(&wndclass);
// Create our main, raw win32 API window
// We create the window invisible (meaning that we do not provide WS_VISIBLE as the window style parameter), because making it visible and then
// adding a HwndSource will make it flicker.
HWND mainWindow = ::CreateWindow(
windowClassName,
windowTitle,
0,
CW_USEDEFAULT,
CW_USEDEFAULT,
windowWidth,
windowHeight,
NULL,
NULL,
hInstance,
0);
::ShowWindow (mainWindow, nCmdShow);
::UpdateWindow( mainWindow );
//ocx
typedef HRESULT (WINAPI *PFonc)(IUnknown*, HWND,IUnknown**);
HINSTANCE hDLL2 = ::LoadLibrary(TEXT("atl.dll"));
if (!hDLL2)
return 1;
//PAttachControl AtlAxAttachControl = (PAttachControl) GetProcAddress(hDLL2, (LPCSTR)"AtlAxAttachControl");
PFonc AtlAxAttachControl = (PFonc) ::GetProcAddress(hDLL2,"AtlAxAttachControl");
CLSID clsid = GetClsid();
IID DIID__DLiveX = GetDIID__DLiveX();
RECT rect;
::GetClientRect(mainWindow,&rect);
container = ::CreateWindowEx(WS_EX_CLIENTEDGE, L"EDIT",L"",WS_CHILD | WS_VISIBLE,100,100,rect.right,rect.bottom,mainWindow,0,hInstance,0);
HRESULT hr = ::CoInitialize(0);
IWebBrowser2 *pIwb;
IUnknown* unkn;
hr = ::CoCreateInstance(CLSID_WebBrowser,0,CLSCTX_ALL,IID_IWebBrowser2,(void**)&pIwb);
hr = AtlAxAttachControl(pIwb,container,0);
if(FAILED(hr)){
MessageBox(0, L"FAILED(AtlAxAttachControl(pitd, container, NULL))", L"Error", MB_ICONERROR | MB_OK);
}
pIwb->GoHome();
pIwb->Navigate2((VARIANT*)L"www.google.com",0,0,0,0);
// Start message processing
::MSG message;
while (::GetMessageA(&message, 0, 0, 0)) {
switch (message.message) {
case WM_QUIT:
break;
default:
::TranslateMessage(& message);
::DispatchMessage(& message);
break;
}
}
CoUninitialize();
FreeLibrary(hDLL2);
return 0;
}
but the when i execute my programme i got two window, one my originale empty and the Activex in another wind,
Thanks.

Answer 1

I have made small changes and it compiles and shows only one window with an ActiveX included:
#include "stdafx.h"
#include <iostream>
#include <windows.h>
#include <comdef.h>
#include <exdisp.h>
#include <oledlg.h>
using namespace std;
// Constants
namespace {
TCHAR * windowClassName = TEXT("win32host");
TCHAR * windowTitle = TEXT("Win32 interface");
int windowWidth = 600;
int windowHeight = 600;
}
HWND container;
LRESULT CALLBACK WindowProc( HWND hWnd, UINT messg, WPARAM wParam, LPARAM lParam )
{
switch(messg)
{
case WM_SIZE:
// Redimensionnement du conteneur quand la taille de la fenêtre change:
MoveWindow(container,0,0,LOWORD(lParam), HIWORD(lParam),1);
break;
case WM_CLOSE:
// Détruire la fenêtre principale:
DestroyWindow(hWnd);
break;
case WM_DESTROY:
// Envoyer le message de sortie du programme:
PostQuitMessage( 0 );
break;
default:
//Retour:
return( DefWindowProc( hWnd, messg, wParam, lParam ) );
}
return 0;
}
int CALLBACK WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
// Register our Window class
WNDCLASS wndclass;
wndclass.style = CS_VREDRAW | CS_HREDRAW;
wndclass.lpfnWndProc = &WindowProc;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = hInstance;
wndclass.hIcon = NULL;
wndclass.hCursor = NULL;
wndclass.hbrBackground = reinterpret_cast <HBRUSH> (COLOR_BTNFACE + 1);
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName =windowClassName;
::RegisterClass(&wndclass);
// Create our main, raw win32 API window
// We create the window invisible (meaning that we do not provide WS_VISIBLE as the window style parameter), because making it visible and then
// adding a HwndSource will make it flicker.
HWND mainWindow = ::CreateWindow(
windowClassName,
windowTitle,
0,
CW_USEDEFAULT,
CW_USEDEFAULT,
windowWidth,
windowHeight,
NULL,
NULL,
hInstance,
0);
::ShowWindow (mainWindow, nCmdShow);
::UpdateWindow( mainWindow );
typedef HRESULT (WINAPI *PFonc)(IUnknown*, HWND,IUnknown**);
HINSTANCE hDLL2 = ::LoadLibrary(TEXT("atl.dll"));
if (!hDLL2)
return 1;
PFonc AtlAxAttachControl = (PFonc) ::GetProcAddress(hDLL2,"AtlAxAttachControl");
RECT rect;
::GetClientRect(mainWindow,&rect);
container = ::CreateWindowEx(
WS_EX_CLIENTEDGE,
L"EDIT",
L"",WS_CHILD | WS_VISIBLE,
0,
0,
rect.right,
rect.bottom,
mainWindow,
0,
hInstance,
0);
HRESULT hr = ::CoInitialize(0);
IWebBrowser2 *pIwb;
hr = ::CoCreateInstance(CLSID_WebBrowser,0,CLSCTX_ALL,IID_IWebBrowser2,(void**)&pIwb);
hr = AtlAxAttachControl(pIwb,container,0);
if(FAILED(hr))
{
MessageBox(0, L"FAILED(AtlAxAttachControl(pitd, container, NULL))", L"Error", MB_ICONERROR | MB_OK);
}
pIwb->GoHome();
pIwb->Navigate2((VARIANT*)L"www.google.com",0,0,0,0);
// Start message processing
::MSG message;
while (::GetMessageA(&message, 0, 0, 0))
{
switch (message.message) {
case WM_QUIT:
break;
default:
::TranslateMessage(& message);
::DispatchMessage(& message);
break;
}
}
CoUninitialize();
FreeLibrary(hDLL2);
return 0;
}

Answer 2

I test out duDE's code and it works except it did not browse to the requested URL.
I am quite surprise that ocx can be used in win32 without ATL/MFC so easily in this way, but it actually works.
I think the failure to browse is because:
pIwb->Navigate2((VARIANT*)L"www.google.com",0,0,0,0);
Change it to:
// create variant for url
VARIANT varUrl;
// init variant
VariantInit(&varUrl);
varUrl.vt = VT_BSTR;
varUrl.bstrVal = SysAllocString(L"www.google.com");
// browse to url
hr = pIwb->Navigate2((VARIANT*)&varUrl,0,0,0,0);
// release variant
VariantClear(&varUrl);