How do I use mp.unobserve_property ?

[Rabcor]

I have this code to update some things whenever the mouse location changes

mp.observe_property("mouse-pos", "native", 
		function(name, value)
			if value then
				preview(value.x,value.y)
			end
		end)

where preview refers to another function i want called whenever the mouse changes position.

But I can't seem to disable this after I start it, according to searches I should be able to use something like

mp.unobserve_property("mouse-pos")

But it doesn't seem to be doing anything.

[avih]

Please read the docs before trying random things.

It takes a function reference - not a property name. So you should make it a normal local function (and not a lambda function) and then observe or unobserve that function name.

like this:

local function my_func(...)
    ...
end

mp.observe_property("some-property", "some-type", my_func)
mp.unobserve_property(my_func)

[Rabcor]

Ah yeah, I did know about the unobserve_property typically being used with a function name (even if it's strange) but I tried that and I couldn't figure out how to pass the value of the mouse position vector through to the function, and using your example nothing seems like it's being passed on to the called function.

Moreover what if I want to do something a bit more elaboreate like using mp.add_timeout?

[avih]

I did know about the unobserve_property typically being used with a function name (even if it's strange)

It's not "typically". It's always and only. Exactly as documented. Strage or not is subjective and irrelevant. There's documentation, so follow that.

I tried that and I couldn't figure out how to pass the value of the mouse position vector through to the function, and using your example nothing seems like it's being passed on to the called function.

There's nothing different other than the function being outside:

local utils = require("mp.utils")

local function my_mouse_observer(name, val)
    print(utils.to_string(val))
end

mp.observe_property("mouse-pos", "native", my_mouse_observer)

Moreover what if I want to do something a bit more elaboreate like using mp.add_timeout?

No more help for you.

Learn Lua, read the mpv lua docs, look at scripts by other people, and spend time practicing.

[Rabcor]

But that's exactly what I am doing...

My mistake now that I can see your version was that I forgot to change the args in my function from x,y to name,val to process the output correctly.