Finding what code is triggered by a UI element

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Are the below docs outdated? When I hover over UI elements; I do not see a name for the operator that will be invoked; and searching for the referenced code snippets doesn’t always get results.

https://wiki.blender.org/wiki/Reference/FAQ
How are Operators connected to C code?

Is there a way to find which bit of Python generates an given bit of the UI; and then to figure what gets invoked when things are clicked?

Thanks

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You need to enable the tooltips in the preferences. In Preferences > Interface make sure Tooltips, Python Tooltips, and Developer Extras are checked. Then you should see more details in the tooltips.

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You will also see an Edit Source entry when you right click on UI elements. This opens the .py file in the text editor. (This button is in properties_object.py)

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As an example, if you were searching for the operator object.collection_link() I would follow the guidelines in the wiki you linked.

$ grep -rn OBJECT_OT_collection_link
editors/object/object_ops.c:242:  WM_operatortype_append(OBJECT_OT_collection_link);
editors/object/object_collection.c:518:void OBJECT_OT_collection_link(wmOperatorType *ot)
editors/object/object_collection.c:524:  ot->idname = "OBJECT_OT_collection_link";
editors/object/object_intern.h:289:void OBJECT_OT_collection_link(struct wmOperatorType *ot);

Searching for just collection_link will also work.

From there, look at those functions that the search found. This is the process I follow when I’m trying to locate code I’ve never edited before, and by searching the operator name, tooltip name, and description, I’m usually able to find it quickly.

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Fantastic; updating Preferences did the trick! thank you very much

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