Python Scripting Tag Global Variables

On 15/07/2015 at 21:31, xxxxxxxx wrote:

Hello Forum,

After reading these great posts: Thanks Niklas. Thanks Sebastian.
I realized there is much to learn about Python Scripting Tags.

Where are the global variables for the Python Scripting Tags documented?
By reading other posts/examples, I understand that "op" and "doc" are global variables, but I did knot know there was a global function like message(msg_type, data) : available in a scripting tag.

I do not understand how message(msg_type, data) works in the scripting tag.  How is it getting called?  Is it like a virtual method in c++?  Are there other functions like this available?

Thank you,

Joe Buck

On 16/07/2015 at 02:03, xxxxxxxx wrote:

Hi Joe,

The Python documentation is currently lacking information on Python scripting features (tags, scripts, XPresso node etc).

main() in a Python tag is the same as TagData::Execute() and the available global variables are:
doc : the host document of the tag.
flags : the execution flags.
op : the Python tag.
bt : the calling thread.
tp : the TP master system for the host document if there's one.

message(id, data) in a Python tag behaves the same as TagData::Message().
It receives the data as Python dictionaries with the entries matching the names used in the C++ API for the structure members.
The available global variables are the same as in main() except that flags and priority does not make sense in message().

On 16/07/2015 at 08:20, xxxxxxxx wrote:

Thank you Yannick.  This is solved.