I cannot open a web page using CEF4Delphi.......HELP Please
lazarus / 38-Networking and Web Programming

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laurence lockwood · 2023-06-20 15:21

Ok, So I am using FPC 3.2.2 with Lazarus 2.2.6. Windows 7 operating
system, 32Gb ram, Asus ROG m/board, Intel Chipset.
CEF4Delphi package is installed and units are listed as per required.
Compiles fine on CTRL+ F9, but nothing happens.
On Form create, I've got
GlobalCEFApp := TCefApplication.Create;
Then, GlobalCEFApp.GlobalContextInitialized;
Then I have put:-
While not ChromiumWindow1.CreateBrowser Do
 Begin
   // Timer1.Enabled := True;
 ChromiumWindow1.CreateBrowser;
  Application.ProcessMessages;
 End;
The timer1Timer procedure is taken out because it still didn't work.
The components are:-
ChromiumWindow1;
Timer1;

My Button on my form is called ChromeWeb
On the 'Click Event':-
ChromiumWindow1.CreateBrowser;
Timer1Timer;
ChromiumWindow1.initialized;
  if ChromiumWindow1.Initialized then
  begin
    // Load the desired URL
  ShowMessage('Initialized');
    ChromiumWindow1.LoadURL('https://www.google.co.uk/');
  end
  Else
  Begin
  Timer1Timer;
  ChromiumWindow1.Initialized;
  ShowMessage(' NOT Initialized');
  End;
After all that I get diddly squat.......I have read all the demos and
tried to get it right but I think I am missing something.
What am I not doing? It is driving me nuts. It is only a hobby but it
beats watching TV all night.

Please help......

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TRon · 2023-06-20 15:30

I am merely repeating the official docs:
QuoteSince CEF4Delphi uses the latest CEF branch, it's not compatible
with Windows 7, 8/8.1, XP, Windows Vista, Windows Server 2003, Windows
Server 2008 and Windows Server 2012.
Whether or not that (still) applies, I have no idea.

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laurence lockwood · 2023-06-20 16:45

TRon, Thank you so much. I didn't actually see that bit. I have been
trying to get this to work for weeks........At least I now know I need
to upgrade. Thank you again. BR

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TRon · 2023-06-20 16:54

You're welcome laurence,

The only problem is that I do not know which version of CEF4Delphi and
chromium you use. On that same page is a mention of the last CEF4Dephi
version that works with Windows 7 (and which version of chromium that
requires).

That means that in theory it is possible to get it working on your
current version of Windows. Whether that is a good or bad idea to
pursue, I (also) can't tell.

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Red_prig · 2023-06-20 17:25

I'll just leave it here https://github.com/red-prig/fp-cef-kiosk

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Martin_fr · 2023-06-20 17:39

Please use codetags....
[ code=pascal ] ... [ /code ]


Have you tried TBrowserWindow ?

It should handle the context, and wait for creation, and then you get
an event OnCreated.

----
You do app.ProcessMessages, you may also have to do
GlobalCEFApp.DoMessageLoopWork; and not sure what else....

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salvadordf · 2023-06-21 07:48

Hi,

As TRon said, Windows 7 is no longer supported by any Chromium based
web browser. This is a Google decision and we can only use outdated
browser versions or upgrade to Windows 10.

If you decide to keep Windows 7 then you can only use this CEF4Delphi
release :
https://github.com/salvadordf/CEF4Delphi/releases/tag/109.0.5414.120

This is also a problem for WebView2 users so you will have the same
problem if you try WebView4Delphi.