Hi, @y_puech I may find a bug of the forum about "mark a post correct answer", discussion post here: Cannot mark post as answer
Once this bug solved, I will re-edit this topic and posts correctly.

Hi,

I have turned your thread into a question, see Q&A New Functionality.
Also moved the thread to the category Cinema 4D Development.

In Cinema 4D R19 you can use the environment variable C4D_PLUGINS_DIR to set another path for plugins.
It may even contain multiple directories (separated by semicolon ; ), although there was a bug in the early versions of R19, which prevented this. The bug was fixed with R19 SP2.
There's an old thread discussing this, where you can also see how it's used: C4D_PLUGINS_DIR Multiple path
Admittedly the original poster still seemed to have issues with mutiple paths, which we have not been able to reproduce, though.

In Cinema 4D R20 this was changed completely. There you have multiple options:

Multiple plugin directories can be set in Cinema's preferences g_additionalModulePath environment variable Additional plugin directories can be specified on command line Cinema4D.exe g_additionalModulePath=...

See also Environment Variables in the user help and also the thread Is C4D_PLUGINS_DIR env var still working (R20.0.28)?.

Cheers,
Andreas

Hi zhhm156, so for coming late here, but it took more than expected.

After getting in contact with the team in charge of the development and making some further researches, it appears that the VerifyServerOnClient function is indeed deprecated.

I'll get back on this discussion in the future to notify about potential workaround to achieve a similar functionality.

Best, Riccardo

Hi Holger,

I'm wondering if your question has been answered. If so, please mark this thread as solved.

Cheers,
Yannick

Hi @Hexbob6

I'm wondering if your question has been answered. If so, please mark this thread as solved.

Cheers,
Maxime.

Hi @zhhm156

I'm wondering if your question has been answered. If so, please mark this thread as solved.

Cheers,
Maxime.

Hi @anoano

I'm wondering if your question has been answered. If so, please mark this thread as solved.

Cheers,
Maxime.

Hello @HolgerBiebrach ,

I'm wondering if your question has been answered. If so, please mark this thread as solved.

best wishes,
Sebastian

Hi,

both answers already provide valid solutions. Nice.

@Rage: Please also consider to use the tagging system (see Read Before Posting) and the Question and Answer feature (see Q&A New Functionality). Especially the tags can help, like for example in this case @mp5gosu would probably have provided you with Python code, if the respective tag was set.
Besides setting tags and changing into a question, I have also moved this thread into the Cinema 4D Development category.

And then I want to add a few links to Python docs:
GeListNode
CallCommand()

Cheers,
Andreas

Hello,

I'm not aware of any other components that won't work with that optimization. But again, we don't use this optimization so I haven't tested that.

best wishes,
Sebastian

Note c4dpy does not work with a R20 free educational license. But c4dpy runs fine with a paid R20 student license.

@a_block

Case solved! Thanks again for your patience.

@s_bach Wow! I didn't see that coming. Thanks for the clear-cut explanation. Now I know in which direction I have to move. Thanks again ☺ !

Hello.

I have solved it by using SpecialEventAdd and sending a message to dialog's CoreMessage.

Thank you.

Hi, @mike if the previous post solves your issue, please mark it as the correct answers. It will switch the topic as solved. To do so please read Q&A functionality.
Of course, if you didn't test my previous post, or may have follow-up questions, do not mark as solved and take as much time as you need to ask us. But if there is nothing more to add please mark your topic as solved.

Cheers,
Maxime

@m_adam
Yes, the data is available, it will not print when the object is hidden, hopefully it will be solved in future versions.

@mp5gosu Thank you, that is a good tip. I see that Onull=5140 is listed and it looks like all others are in there too! Thom

Hi Víctor,

To retrieve parameters a function must be initialized with PYFN_FLAGS::KEYWORDS. Then use pylib.ParseTupleAndKeywords() to get the value for each parameter.
The following code shows the implementation of a function which expects a string, an integer and a float:

static _PyObject *extendpyapi_PassParameters(_PyObject *self, _PyObject *args, _PyObject *keywords) { PythonLibrary pylib; String str; Int32 integer = 0; Float real = 0.0f; const Char *kwlist[] = {"str", "integer", "real", nullptr}; if (!pylib.ParseTupleAndKeywords(args, keywords, "$if", kwlist, &str, &integer, &real)) return nullptr; if (str.Content()) GePrint("Parameter str: " + str); GePrint("Parameter integer: " + String::IntToString(integer)); GePrint("Parameter real: " + String::FloatToString(real)); return pylib.ReturnPyNone(); } ... moduleFunctions[1].Init("PassParameters", (PyFn)extendpyapi_PassParameters, PYFN_FLAGS::KEYWORDS, "PassParameters() - Extend Python API");

Hi Petros, in order to have the MATPREVIEW_PREPARE_SCENE being dispatched, you've to set MatPreviewObjectInfo::bNeedsOwnScene to true. At the same time also MatPreviewObjectInfo::bHandlePreview needs to be set to true when the host object is responsible for the rendering.

Finally I think that looking at MATPREVIEW enums can be helpful as well.

Best, Riccardo

@s_bach Hello Sebastian,

Thanks a lot for clearing my confusion. Now I know what to do. Thanks for the help!

Best Regards
Gogeta