Building on Robert Gützkow's excellent answer and script, I've updated the script to perform a similar task for Emulate Numpad, and which also applies the hotkeys for your particular concern (Toggling Emulate Middle Mouse Button) that involved an extra manual step in Robert's Answer:
" for Toggle Emulate Middle Mouse Button
; for Toggle Emulate Numpad
You may change these hotkeys in the Preferences.
bl_info = {
"name": "Toggle 'Emulate 3 Button Mouse' & 'Emulate Numpad'",
"author": "brybalicious courtesy Robert Guetzkow",
"version": (1, 0),
"blender": (2, 90, 1),
"location": "Edit > Operator Search",
"description": "Operator for toggling the 'Emulate 3 Button Mouse' & 'Emulate Numpad' options",
"warning": "",
"wiki_url": "https://github.com/brybalicious/toggle_mmb_numpad/wiki",
"category": "Preferences"}
import bpy
import rna_keymap_ui
from bpy.utils import register_class, unregister_class
# Surfacing the Operators
# They can now be looked up via their bl_label attribute with the search function on default hotkey F3
class PREFERENCES_OT_toggle_emulate_3_button_mouse(bpy.types.Operator):
bl_idname = "preferences.toggle_emulate_3_button_mouse"
bl_label = "Toggle 'Emulate 3 Button Mouse'"
def execute(self, context):
context.preferences.inputs.use_mouse_emulate_3_button = not context.preferences.inputs.use_mouse_emulate_3_button
return {"FINISHED"}
class PREFERENCES_OT_toggle_emulate_numpad(bpy.types.Operator):
bl_idname = "preferences.toggle_numpad"
bl_label = "Toggle 'Emulate Numpad'"
def execute(self, context):
bpy.context.preferences.inputs.use_emulate_numpad = not bpy.context.preferences.inputs.use_emulate_numpad
return {"FINISHED"}
# Keymap Code
# First, set up a dictionary of key mappings.
# "TEMPLATE": [{"label": "Human readable name of keymap in Blender Keymap UI",
# "region_type": "WINDOW", //Default is WINDOW (optional)
# "space_type", "EMPTY", //Default is EMPTY
# "map_type": "KEYBOARD", //Device to be used (optional)
# "keymap": "Window", //Name to be chosen from declared list of keymap names
# "idname": ..., //Specific reference to operator from blender API
# "type": "", //Key type identifier - choose a specific keyboard button or mouse button, etc...
# "ctrl": False, //Combination keys for compound hotkeys (optional)
# ...
# "value": "PRESS"}, //Whether key will be held, pressed, etc...
# {...}]
keys = {"MENU": [{"label": "Toggle Emulate 3 Button Mouse",
"region_type": "WINDOW",
"space_type": "EMPTY",
"map_type": "KEYBOARD",
"keymap": "Window",
"idname": "preferences.toggle_emulate_3_button_mouse",
"type": "QUOTE",
"ctrl": False,
"alt": False,
"shift": False,
"oskey": False,
"value": "PRESS"
},
{"label": "Toggle Emulate Numpad",
"region_type": "WINDOW",
"space_type": "EMPTY",
"map_type": "KEYBOARD",
"keymap": "Window",
"idname": "preferences.toggle_numpad",
"type": "SEMI_COLON",
"ctrl": False,
"alt": False,
"shift": False,
"oskey": False,
"value": "PRESS"
}]}
# Define a function to get a list of key mappings, 'keylists'
def get_keys():
keylists = []
keylists.append(keys["MENU"])
return keylists
# Define a function to register the key mappings templated in the dict as keymaps, using the constructor kc.keymaps.new()
def register_keymaps(keylists):
wm = bpy.context.window_manager
kc = wm.keyconfigs.addon
keymaps = []
for keylist in keylists:
for item in keylist:
keymap = item.get("keymap")
space_type = item.get("space_type", "EMPTY")
region_type = item.get("region_type", "WINDOW")
if keymap:
km = kc.keymaps.new(name=keymap, space_type=space_type, region_type=region_type)
# km = kc.keymaps.new(name=keymap, space_type=space_type)
if km:
idname = item.get("idname")
type = item.get("type")
value = item.get("value")
shift = item.get("shift", False)
ctrl = item.get("ctrl", False)
alt = item.get("alt", False)
oskey = item.get("oskey", False)
kmi = km.keymap_items.new(idname, type, value, shift=shift, ctrl=ctrl, alt=alt, oskey=oskey)
if kmi:
properties = item.get("properties")
if properties:
for name, value in properties:
setattr(kmi.properties, name, value)
keymaps.append((km, kmi))
return keymaps
# Define a function to unregister the keymaps
def unregister_keymaps(keymaps):
for km, kmi in keymaps:
km.keymap_items.remove(kmi)
classes = (PREFERENCES_OT_toggle_emulate_3_button_mouse, PREFERENCES_OT_toggle_emulate_numpad)
def register():
for cls in classes:
register_class(cls)
global keymaps
keys = get_keys()
keymaps = register_keymaps(keys)
def unregister():
global keymaps
for km, kmi in keymaps:
km.keymap_items.remove(kmi)
for cls in classes:
unregister_class(cls)
# if __name__ == "__main__":
# register()
To install, please download or clone the repository from https://github.com/brybalicious/toggle_mmb_numpad.git and follow the same instructions for installing the addon as an archive with .zip extension, as per Robert's answer. Hope this helps!
