Communicating data between two plugins

On 13/04/2015 at 07:57, xxxxxxxx wrote:

I have two plugins that live in different Python Plugin files. I know that we can use the Message system
to pass Python objects around Python Plugins, but this only works with NodeData Plugins like Objects,
Tags, etc.

Plugin B provides a GUI that Plugin A needs data from. As it only implements a GUI, there is only a
CommandData in Plugin B. How can I allow Plugin A to communicate with Plugin B and exchange
Pythonic data?

On 13/04/2015 at 15:07, xxxxxxxx wrote:

Is it too simple/obvious or blundering to use maybe just a global basecontainer, populate that from the gui, and read from it with the nodedata plugin..

On 14/04/2015 at 00:20, xxxxxxxx wrote:

Hi Eclektrik,

I can not just put any Python object in a BaseContainer, and I would have to place the container
somewhere Plugin A can find it, eg. in the World or Plugin Data Container. I would prefer to exchange
any Python objects between the Plugins.

However, I just got the idea that I could just make an Object or Tag
plugin, add methods it that should function as the API, and it does
not need to be inserted in the document.

def get_api() :
    return c4d.BaseTag(ID_MY_API_PLUGIN).GetNodeData()

Cheers,
Niklas

On 14/04/2015 at 08:11, xxxxxxxx wrote:

Hi Niklas,

How would yo use your function get_api()?

On 14/04/2015 at 08:55, xxxxxxxx wrote:

Hi Yannick,

my_plugin.pyp

import c4d
  
class MyAPI(c4d.plugins.TagData) :
    PLUGIN_ID = 124242  # just a random ID, not registered
  
    def get_welcome_message(self) :
        return "Hello from my_plugin.pyp!"
  
if __name__ == "__main__":
    # register MyAPI as a TagPlugin ...
    pass

Script Manager

def get_my_api() :
    return c4d.BaseTag(124242).GetNodeData()
  
api = get_my_api()
print api.get_welcome_message()

I'll write a blog post in a few days and will link it here.

Cheers,
Niklas

On 14/04/2015 at 10:32, xxxxxxxx wrote:

I wonder how

c4d.BaseTag(124242).GetNodeData()

can return a valid BaseTag there if the TagData is not registered?

On 14/04/2015 at 10:40, xxxxxxxx wrote:

I wanted to keep the snippet short so I only added a comment that MyAPI needs to be registered. Reread the snippet 🙂

On 14/04/2015 at 10:51, xxxxxxxx wrote:

Originally posted by xxxxxxxx

I wanted to keep the snippet short so I only added a comment that MyAPI needs to be registered. Reread the snippet 🙂

Ah ok 🙂. The comment for PLUGIN_ID confused me:

PLUGIN_ID = 124242  # just a random ID, not registered