Cefsharp.WPF.NET Core（開發者的工作原理）

using System;
using System.Windows.Forms;
using CefSharp;
using CefSharp.WinForms;

namespace CefSharpExample
{
    public partial class MainForm : Form
    {
        private ChromiumWebBrowser chromeBrowser;

        public MainForm()
        {
            InitializeComponent();

            // Initialize CefSharp settings
            CefSettings settings = new CefSettings();
            Cef.Initialize(settings);

            // Create the ChromiumWebBrowser instance
            chromeBrowser = new ChromiumWebBrowser("https://ironpdf.com/"); // Load a URL

            // Add the ChromiumWebBrowser control to the form
            this.Controls.Add(chromeBrowser);
            chromeBrowser.Dock = DockStyle.Fill; // Fill the entire form

            // Handle when the browser component has finished loading
            chromeBrowser.LoadingStateChanged += ChromeBrowser_LoadingStateChanged;
        }

        private void ChromeBrowser_LoadingStateChanged(object sender, LoadingStateChangedEventArgs e)
        {
            if (!e.IsLoading)
            {
                // Page has finished loading
                // Perform actions after the page has loaded
                Console.WriteLine("Finished loading.");
            }
        }

        // Dispose of Cef resources when the form is closed
        private void MainForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            Cef.Shutdown();
        }
    }
}

Imports System
Imports System.Windows.Forms
Imports CefSharp
Imports CefSharp.WinForms

Namespace CefSharpExample
	Partial Public Class MainForm
		Inherits Form

		Private chromeBrowser As ChromiumWebBrowser

		Public Sub New()
			InitializeComponent()

			' Initialize CefSharp settings
			Dim settings As New CefSettings()
			Cef.Initialize(settings)

			' Create the ChromiumWebBrowser instance
			chromeBrowser = New ChromiumWebBrowser("https://ironpdf.com/") ' Load a URL

			' Add the ChromiumWebBrowser control to the form
			Me.Controls.Add(chromeBrowser)
			chromeBrowser.Dock = DockStyle.Fill ' Fill the entire form

			' Handle when the browser component has finished loading
			AddHandler chromeBrowser.LoadingStateChanged, AddressOf ChromeBrowser_LoadingStateChanged
		End Sub

		Private Sub ChromeBrowser_LoadingStateChanged(ByVal sender As Object, ByVal e As LoadingStateChangedEventArgs)
			If Not e.IsLoading Then
				' Page has finished loading
				' Perform actions after the page has loaded
				Console.WriteLine("Finished loading.")
			End If
		End Sub

		' Dispose of Cef resources when the form is closed
		Private Sub MainForm_FormClosing(ByVal sender As Object, ByVal e As FormClosingEventArgs)
			Cef.Shutdown()
		End Sub
	End Class
End Namespace

using CefSharp;
using IronPdf;
using System;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace CefSharpIronPdfIntegration
{
    public partial class MainForm : Form
    {
        private ChromiumWebBrowser chromeBrowser;

        public MainForm()
        {
            InitializeComponent();

            // Initialize CefSharp
            CefSettings settings = new CefSettings();
            Cef.Initialize(settings);

            // Create the ChromiumWebBrowser instance
            chromeBrowser = new ChromiumWebBrowser("https://ironpdf.com/"); // Load a URL

            // Add the ChromiumWebBrowser control to the form
            this.Controls.Add(chromeBrowser);
            chromeBrowser.Dock = DockStyle.Fill; // Fill the entire form

            // Handle when the browser component has finished loading
            chromeBrowser.LoadingStateChanged += ChromeBrowser_LoadingStateChanged;
        }

        private async void ChromeBrowser_LoadingStateChanged(object sender, LoadingStateChangedEventArgs e)
        {
            if (!e.IsLoading)
            {
                // Page has finished loading
                // Capture HTML content after page load completes
                string htmlContent = await chromeBrowser.GetSourceAsync();

                // Use IronPDF to generate a PDF from the captured HTML content
                var Renderer = new IronPdf.HtmlToPdf();
                var PDF = Renderer.RenderHtmlAsPdf(htmlContent);
                PDF.SaveAs("Output.pdf"); // Save the generated PDF

                Console.WriteLine("PDF generated successfully.");
            }
        }

        // Dispose of Cef resources when the form is closed to avoid unnecessary memory usage
        private void MainForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            Cef.Shutdown();
        }
    }
}

Imports CefSharp
Imports IronPdf
Imports System
Imports System.Threading.Tasks
Imports System.Windows.Forms

Namespace CefSharpIronPdfIntegration
	Partial Public Class MainForm
		Inherits Form

		Private chromeBrowser As ChromiumWebBrowser

		Public Sub New()
			InitializeComponent()

			' Initialize CefSharp
			Dim settings As New CefSettings()
			Cef.Initialize(settings)

			' Create the ChromiumWebBrowser instance
			chromeBrowser = New ChromiumWebBrowser("https://ironpdf.com/") ' Load a URL

			' Add the ChromiumWebBrowser control to the form
			Me.Controls.Add(chromeBrowser)
			chromeBrowser.Dock = DockStyle.Fill ' Fill the entire form

			' Handle when the browser component has finished loading
			AddHandler chromeBrowser.LoadingStateChanged, AddressOf ChromeBrowser_LoadingStateChanged
		End Sub

		Private Async Sub ChromeBrowser_LoadingStateChanged(ByVal sender As Object, ByVal e As LoadingStateChangedEventArgs)
			If Not e.IsLoading Then
				' Page has finished loading
				' Capture HTML content after page load completes
				Dim htmlContent As String = Await chromeBrowser.GetSourceAsync()

				' Use IronPDF to generate a PDF from the captured HTML content
				Dim Renderer = New IronPdf.HtmlToPdf()
				Dim PDF = Renderer.RenderHtmlAsPdf(htmlContent)
				PDF.SaveAs("Output.pdf") ' Save the generated PDF

				Console.WriteLine("PDF generated successfully.")
			End If
		End Sub

		' Dispose of Cef resources when the form is closed to avoid unnecessary memory usage
		Private Sub MainForm_FormClosing(ByVal sender As Object, ByVal e As FormClosingEventArgs)
			Cef.Shutdown()
		End Sub
	End Class
End Namespace