CefPostTask TID_RENDERER doesn't invoke.

[zezba9000]

When I use the "cefsimple" app and run the code below, "MyFunc" never fires:

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//CefRunMessageLoop();
while (true)
 {
  CefDoMessageLoopWork();

  if (!CefCurrentlyOn(TID_RENDERER))
  {
    CefPostTask(TID_RENDERER, base::Bind(&MyFunc));
  }

  Sleep(1);
}

I need to access the CefV8Context.

Win10, x64
CEF x86
VS 2015

[fddima]

Read wiki JavaScriptIntegration first. TID_RENDERER is thread in renderer process, not main process.

[zezba9000]

Read wiki JavaScriptIntegration first. TID_RENDERER is thread in renderer process, not main process.

"MyRenderProcessHandler::OnContextCreated" never fires in "SimpleApp" example.
I add the interface "CefRenderProcessHandler" and override "OnContextCreated". Does nothing.

[Czarek]

"MyRenderProcessHandler::OnContextCreated" never fires in "SimpleApp" example.
I add the interface "CefRenderProcessHandler" and override "OnContextCreated". Does nothing.

Make sure to pass handler to CefExecuteProcess and attach debugger to the subprocess.

[zezba9000]

"MyRenderProcessHandler::OnContextCreated" never fires in "SimpleApp" example.
I add the interface "CefRenderProcessHandler" and override "OnContextCreated". Does nothing.

Make sure to pass handler to CefExecuteProcess and attach debugger to the subprocess.

Still doesn't do anything. Thats the first thing I tried.

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// Provide CEF with command-line arguments.
  CefMainArgs main_args(hInstance);

  // CEF applications have multiple sub-processes (render, plugin, GPU, etc)
  // that share the same executable. This function checks the command-line and,
  // if this is a sub-process, executes the appropriate logic.
  CefRefPtr<SimpleApp> app(new SimpleApp);
  int exit_code = CefExecuteProcess(main_args, app, sandbox_info);
  if (exit_code >= 0) {
    // The sub-process has completed so return here.
    return exit_code;
  }

  // Specify CEF global settings here.
  CefSettings settings;

#if !defined(CEF_USE_SANDBOX)
  settings.no_sandbox = true;
#endif

  // SimpleApp implements application-level callbacks for the browser process.
  // It will create the first browser instance in OnContextInitialized() after
  // CEF has initialized.
 // CefRefPtr<SimpleApp> app(new SimpleApp);
 
  // Initialize CEF.
  CefInitialize(main_args, settings, app, sandbox_info);
 
  // Run the CEF message loop. This will block until CefQuitMessageLoop() is
  // called.
  //auto t = std::thread(Foo, app.get());
  CefRunMessageLoop();

Code: Select all

class SimpleApp : public CefApp,
                  public CefBrowserProcessHandler,
              public CefRenderProcessHandler
              {
 public:
  SimpleApp();
  CefRefPtr<CefBrowser> browser;
  CefRefPtr<SimpleHandler> handler;
 // CefRefPtr<CefBrowserProcessHandler> render;

  virtual void OnContextCreated(CefRefPtr<CefBrowser> browser2,
     CefRefPtr<CefFrame> frame,
     CefRefPtr<CefV8Context> context) override;

  virtual CefRefPtr<CefRenderProcessHandler> GetRenderProcessHandler() OVERRIDE
  {
     return this;
  }

[zezba9000]

Notice lines:

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CefRefPtr<SimpleApp> app(new SimpleApp);
  int exit_code = CefExecuteProcess(main_args, app, sandbox_info);

[amaitland]

If you haven't already read https://www.chromium.org/developers/how ... on-windows in particular the section on manually attaching to the child process.