Launching Cef in fullscreen mode

[sburke]

According to http://peter.sh/experiments/chromium-co ... -switches/, the command-line switch to launch Cef in fullscreen mode should be --start-fullscreen. However, I can't find this switch anywhere in the Cef source code. I have tried launching as follows:

Code: Select all

cefclient.exe --url=www.google.com --start-fullscreen
cefclient.exe --url=www.google.com --start-fullscreen=1
cefclient.exe --url=www.google.com --start-fullscreen=true

None of these are working. Is there another argument I can pass in?

[Czarek]

CEF doesn't support that switch. Many of the switches listed on peter.sh are Google Chrome only switches.

[sburke]

So is there no way to launch Cef3 in full screen? Does hiding the toolbar and what-not require that the actual Cef3 source code be updated?

[magreenblatt]

You can implement full screen mode in your client application code.

[sburke]

By "client application code", are you referring to the actual Chromium open source code? All of Chromium is "client application code", so I presume that's what you mean. The bottom line is, there's no switch or environment variable that will cause Chromium to launch in full screen mode. It must be implemented programmatically by editing the actual browser source code, correct?

[HarmlessDave]

I can't share the source code from work, but for Windows and OS X we replaced the window creation code in our version of CEFClient (the application level), we did not need to change anything in the CEF3 library or in Chromium.

[sburke]

Are you able to say which files were modified? The only references to the toolbar or full screen that I've found thus are are in browser_info_manager.cc and cef_types_wrappers.h, which I have modified as follows:

browser_info_manager.cc:

Code: Select all

features.menuBarVisible = false;
features.statusBarVisible = false;
features.toolBarVisible = false;
features.locationBarVisible = false;
features.scrollbarsVisible = false;
features.resizable = false;

cef_types_wrappers.h:

Code: Select all

s->menuBarVisible = false;
s->statusBarVisible = false;
s->toolBarVisible = false;
s->locationBarVisible = false;
s->scrollbarsVisible = false;
s->resizable = false;

target->menuBarVisible = false;
target->statusBarVisible = false;
target->toolBarVisible = false;
target->locationBarVisible = false;
target->scrollbarsVisible = false;
target->resizable = false;
target->fullscreen = true;


Compile (4+ hours), relaunch...no change.

Thanks for responding.

[HarmlessDave]

No rebuilding of libcef.dll should be needed, at least for a C++ application.

We first copied the CEFClient source in 2272 and it has changed a lot since then. In 2924 I see RootWindowWin::CreateRootWindow in root_window_win.cc for the Windows root window creation. You'd need to poke around in CEFClient for other OSs. At least for Windows you could also let the default creation happen and then just change the window styles.

[salvadordf]

sburke : You have to do something like this :
https://www.codeproject.com/Questions/1 ... l-Screen-C
You don't have to modify CEF3 libraries.

[sburke]

Setting the browser to the full dimensions of the screen is not a problem. I can do that. The issue is that the titlebar remains and dialog frame remain visible. I need for Chromium to go full screen just as if a user pressed F11 in Chrome.