Search in
Sort by:

Question Status:

Search help

  • Simple searches use one or more words. Separate the words with spaces (cat dog) to search cat,dog or both. Separate the words with plus signs (cat +dog) to search for items that may contain cat but must contain dog.
  • You can further refine your search on the search results page, where you can search by keywords, author, topic. These can be combined with each other. Examples
    • cat dog --matches anything with cat,dog or both
    • cat +dog --searches for cat +dog where dog is a mandatory term
    • cat -dog -- searches for cat excluding any result containing dog
    • [cats] —will restrict your search to results with topic named "cats"
    • [cats] [dogs] —will restrict your search to results with both topics, "cats", and "dogs"

Blueprint variable tagged as Config variables can't be changed in DefaultEngine.ini


I'm having trouble changing a blueprint variable tagged as "Config Variable" from DefaultEngine.ini. It works "from the Editor" if I reload the project. But if I package my game and try to change that DefaultEngine.ini, the variable isn't changed.

[/Game/config.config_C] test="Tomte"

In my packaged game I am not able to change test to anything. "Tomte" is always printed.

Am I supposed to be able to change blueprint variables from .ini files?

I have attached my simple test project.

Cheers, Daniel

Test project

Product Version: UE 4.14
configtest.zip (360.0 kB)
more ▼

asked Jan 24 '17 at 06:02 PM in Packaging & Deployment

avatar image

1 2 2

(comments are locked)
10|2000 characters needed characters left
Viewable by all users

1 answer: sort voted first

Hey engywook,

I do not believe that this is possible. The reason is because in order for the change to take place, you need to reload the editor. In the packaged game, there is no "editor" to reload, which means that the changes will not take place.

If you give an example of exactly what you're looking to accomplish, we may be able to offer an alternative that can help you.

Have a great day

more ▼

answered Jan 25 '17 at 06:07 PM

avatar image

Sean L ♦♦ STAFF
43.5k 485 152 442

avatar image engywook Jan 25 '17 at 07:55 PM

Ok. Thanks for your reply.

I am helping some researchers set up a VR lab to translate some psychology experiments to VR. They have equipment that uses the parallel port to receive triggers.

I currently need to be able to tell UE4 what hardware address the parallel port is at. I suppose I should just write my "config file" myself. Another option is to stick the settings in the "Main menu" widget and use the "Save Game" features, although that seemed slight overkill.

They are not programmers so I would like to write as little C++ as possible, that they need to understand/use. I will need to make a plugin for the parallel port stuff though.

Any other suggestions or tips?


avatar image Sean L ♦♦ STAFF Jan 27 '17 at 06:45 PM

Honestly, I'm not sure of a great solution that wouldn't be "overkill" without using much C++, as that's what I'm used to.

But I think if you did create the plugin and then stored the settings in your Main Menu widget, it's likely that you'd get the results you're looking for. Without seeing the exact setup, it's hard to say for sure, but it sounds good in theory.

If you end up getting stuck or you need to research an alternative method, feel free to create a new thread in our Blueprint Scripting or C++ Programming sections (whichever you feel is more relevant) and you can discuss alternatives with other community members.

Have a great day

(comments are locked)
10|2000 characters needed characters left
Viewable by all users
Your answer
toggle preview:

Up to 5 attachments (including images) can be used with a maximum of 5.2 MB each and 5.2 MB total.

Follow this question

Once you sign in you will be able to subscribe for any updates here

Answers to this question