CefWebBrowser doesn't show up

Question

Solution:

This issue is caused by not loading the CefRuntime in the Program.cs. Simply copying all code in the sample file to your Program.cs.

A

Answer 1

I also had the same problem,I solved it by modify "BrowserSubprocessPath",the defualt is like this:

        //var browserProcessPath = CombinePaths(localFolder, "..", "..", "..",
        //    "CefGlue.Demo.WinForms", "bin", "Release", "Xilium.CefGlue.Demo.WinForms.exe");

        var browserProcessPath = CombinePaths(localFolder, "Xilium.CefGlue.Demo.WinForms.exe");

        var settings = new CefSettings
        {
            BrowserSubprocessPath = browserProcessPath,
            SingleProcess = false,
            MultiThreadedMessageLoop = true,
            LogSeverity = CefLogSeverity.Disable,
            LogFile = "CefGlue.log",
        };

Because I had changed the application output directory,so the "browserProcessPath" is invalid,then I modify the "browserProcessPath" to match the output directory so that the application can find it.

But,I still can not understand the meaning and usage of "browserProcessPath "

Answer 2

You never added the control to the form's controls collection, at least in the samples you showed.

Answer 3

I too had problems launching the browser. I could load all the CEF DLL's, but the browser wouldn't show up! All I got was the spinning wait mouse cursor when hovering above the control.

Unfortunately I haven't found the root of the problem, but since the sample project CefGlue.Client works, I simply copied it to my solution instead.

Also, I don't see how you are initializing the CEF runtime. Have a look in Program.cs in CefGlue.Client how it's done, but it's basically this:

    [STAThread]
    private static int Main(string[] args)
    {
        try
        {
            CefRuntime.Load();
        }
        catch (DllNotFoundException ex)
        {
            MessageBox.Show(ex.Message, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
            return 1;
        }
        catch (CefRuntimeException ex)
        {
            MessageBox.Show(ex.Message, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
            return 2;
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.ToString(), "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
            return 3;
        }

        var mainArgs = new CefMainArgs(args);
        var app = new DemoApp();

        var exitCode = CefRuntime.ExecuteProcess(mainArgs, app);
        if (exitCode != -1)
            return exitCode;

        var settings = new CefSettings
            {
                // BrowserSubprocessPath = @"D:\fddima\Projects\Xilium\Xilium.CefGlue\CefGlue.Demo\bin\Release\Xilium.CefGlue.Demo.exe",
                SingleProcess = false,
                MultiThreadedMessageLoop = true,
                LogSeverity = CefLogSeverity.Disable,
                LogFile = "CefGlue.log",
            };

        CefRuntime.Initialize(mainArgs, settings, app);

        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);

        if (!settings.MultiThreadedMessageLoop)
        {
            Application.Idle += (sender, e) => { CefRuntime.DoMessageLoopWork(); };
        }

        Application.Run(new MainForm());

        CefRuntime.Shutdown();
        return 0;
    }

Answer 4

You shouldn't use SingleProcess for production, you can actually leave the multiprocess mode (SingleProcess=false) but need to disable Visual Studio Hosting Process and you wont have problem for debugging (spinning wait cursor)