How do I suppress dialog in a python script

Development Programming & Scripting
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1

In the Unreal Editor, if I click on a static mesh actor and go to File > Export Selected, a dialog opens. Say I give it a filename like "blah.obj".

A new dialog opens that says

"Would you like to export the materials as images (slower)?"

Yes, No, Cancel

I click on No, and it does exactly what I want.

Now I’m trying to mimic this behavior from python. The following script, gets me close, but I cannot suppress the “yes, no, cancel dialog” with an option that I want - in my case, I want to select no.

Here’s the script

def export_selected(obj_file: str, automated: bool):
    """
    Export the selected asset to an obj file, mimicking `File > Export Selected`.
    """
    world = unreal.get_editor_subsystem(unreal.UnrealEditorSubsystem).get_editor_world()

    exporter = unreal.LevelExporterOBJ()

    task = unreal.AssetExportTask()
    task.selected = True
    task.filename = obj_file
    task.object = world
    task.exporter = exporter
    task.replace_identical = True

    if automated:
        task.automated = True
        task.prompt = True

    result = exporter.run_asset_export_task(task)

If I set automated=True, then the dialog does not open, but it selects yes. I want it to select no.

Any ideas?

2

I think you need to set up an exporter:-
Look here at the exporter property.

3

The documentation does not state what the options field must be in order to select yes for the dialog. The closest options object that I found is FbxExportOption, but this is not the appropriate export option for the LevelExporterOBJ.