Conflict with CEF dll inside Photoshop

[abizeau]

Hello,

I have been working with a CEF application inside Photoshop for few days now. Everything goes right, except when I try my Plugin inside Photoshop CC 2018 (newer version).

Its seems to enter in conflict with Adobe Spaces plugin (come with the product), which this plugin already include CEF (based on what I see in the folder of this plugin, libcef.dll, AdobeSpaceHelper.exe, etc.)

When I try to start my Plugin, I got the following error:

The procedure entry point cef_load_crlsets_file cound not be located in the dynamic link library libcef.dll

Im trying to understand what wrong, maybe multiple libcef.dll are loaded in memory (but what is the change that I have the same CEF version compare to Photoshop CC 2018 ?)

Is there something I can do for that ? Note that I dont reach the CefInitialized or anything related to CEF inside my own code.

[abizeau]

I achieve to make the program works a bit with Photoshop CC 2018. I put all CEF dll and few of mine as Delay load in each of my project. And ensure to load the specific dll I need only for my own plugin.

Now, I can reach my PluginCEFHelper.dll, where I normally Init CEF on attach (so a single time).

But now, when I reach the:

Code: Select all

int exit_code = CefExecuteProcess(main_args, NULL, sandbox_info);

The debug code trigged a break point inside Photoshop.exe and I got the following output:

Code: Select all

[0223/162942.768:FATAL:libcef_dll_wrapper.cc(192)] Check failed: false.
Photoshop.exe has triggered a breakpoint.

If I continue, exit_code == 0, so I automaticly return, and its stop my Plugin right a way.

Anyone got an idea or a fix to that ?

[magreenblatt]

You can't initialize CEF multiple times in the same process. You'll either have to share the same CEF instance or move your usage into a separate executable and communicate with it via some form of IPC that your plugin implements.

[abizeau]

Thanks, This is what I was already trying to do.

So Im wondering, do CEF offer 3rd Party tools for IPC communication ? Or I have to use boost IPC or something like that ?

Because the thing is that I will have to start a sub-process, handle all my thing about Browser/renderer process in there, and have a shared memory to send the Input to that sub-process, but also to provide the output to the parent process, when the child is completed.

[magreenblatt]

CEF doesn't provide anything for third-party IPC currently.