C/Visual C - abrir ventana IE des de C++

#include <windows.h>

#include <iostream>

#include <comdef.h>

#include <atlbase.h>

#include <atlcomcli.h>

#include <gdiplus.h>

#pragma comment(lib, "gdiplus.lib")

void SaveBitmapToJPG(HBITMAP hBitmap, const std::wstring& filename) {

    Gdiplus::Bitmap bitmap(hBitmap, nullptr);

    CLSID clsid;

    Gdiplus::GetEncoderClsid(L"image/jpeg", &clsid);

    bitmap.Save(filename.c_str(), &clsid, nullptr);

}

int main() {

    // Inicializar GDI+

    Gdiplus::GdiplusStartupInput gdiplusStartupInput;

    ULONG_PTR gdiplusToken;

    Gdiplus::GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, nullptr);

    // Abrir Internet Explorer

    CoInitialize(NULL);

    {

        CComPtr<IWebBrowser2> pBrowser;

        HRESULT hr = pBrowser.CoCreateInstance(__uuidof(InternetExplorer));

        if (SUCCEEDED(hr)) {

            pBrowser->Visible = VARIANT_TRUE;

            CComVariant url(L"http://example.com");

            pBrowser->Navigate(url.bstrVal, nullptr, nullptr, nullptr, nullptr);

            // Esperar a que la página se cargue

            VARIANT_BOOL isBusy;

            do {

                pBrowser->get_Busy(&isBusy);

                Sleep(100);

            } while (isBusy);

            // Capturar la pantalla

            HWND hwnd = pBrowser->GetWindow();

            HDC hdcWindow = GetDC(hwnd);

            HDC hdcMem = CreateCompatibleDC(hdcWindow);

            RECT rc;

            GetClientRect(hwnd, &rc);

            HBITMAP hBitmap = CreateCompatibleBitmap(hdcWindow, rc.right - rc.left, rc.bottom - rc.top);

            SelectObject(hdcMem, hBitmap);

            BitBlt(hdcMem, 0, 0, rc.right - rc.left, rc.bottom - rc.top, hdcWindow, 0, 0, SRCCOPY);

            // Guardar como JPG

            SaveBitmapToJPG(hBitmap, L"captura.jpg");

            // Limpiar

            DeleteObject(hBitmap);

            DeleteDC(hdcMem);

            ReleaseDC(hwnd, hdcWindow);

        }

    }

    CoUninitialize();

    Gdiplus::GdiplusShutdown(gdiplusToken);

    return 0;

}