How to detect when control + L are being held down

Help and Feedback Scripting Support
#1

So, I’ve got a script where I’m trying to detect if a user holds down control+L, but cant seem to get it right.
What I’ve tried:
Having a “ISHOLDING” varible, issue is it doesnt detec the “L” if control is down
and

	if uis:IsKeyDown(Enum.KeyCode.LeftControl) and uis:IsKeyDown(Enum.KeyCode.L) then

All help appreciated.

#2

Try this may need to be edited to work for your script:

-- Assuming this code is inside a LocalScript (which handles user input)

local uis = game:GetService("UserInputService")

uis.InputBegan:Connect(function(input, isProcessed)
    if not isProcessed then
        if input.KeyCode == Enum.KeyCode.LeftControl then
            local isCtrlPressed = true

            uis.InputEnded:Connect(function(innerInput)
                if innerInput.KeyCode == Enum.KeyCode.LeftControl then
                    isCtrlPressed = false
                end
            end)

            uis.InputBegan:Connect(function(innerInput2)
                if isCtrlPressed and innerInput2.KeyCode == Enum.KeyCode.L then
                    -- Ctrl+L is pressed
                    print("Ctrl + L pressed")
                end
            end)
        end
    end
end)
#3

You wouldnt know how to use Robloxs enum modifier keys? It was mentioned in other posts I looked at
ModifierKey | Documentation - Roblox Creator Hub

#4

This didn’t work. The print functions I put in aren’t going. Ill leave the full script

local isHolding = false
local veh = game.Workspace:FindFirstChild(script.Parent.Parent.CarName.Value, true).Body
local mouse=game.Players.LocalPlayer:GetMouse()

local current = "Staff"

local uis = game:GetService("UserInputService")
--// J key, Stages
-- Assuming this code is inside a LocalScript (which handles user input)

local uis = game:GetService("UserInputService")

uis.InputBegan:Connect(function(input, isProcessed)
	if not isProcessed then
		if input.KeyCode == Enum.KeyCode.LeftControl then
			local isCtrlPressed = true

			uis.InputEnded:Connect(function(innerInput)
				if innerInput.KeyCode == Enum.KeyCode.LeftControl then
					isCtrlPressed = false
				end
			end)

			uis.InputBegan:Connect(function(innerInput2)
				if isCtrlPressed and innerInput2.KeyCode == Enum.KeyCode.L then
					print("made it to check if L")
					print("made it past is holding")
					if current == "Staff" then
						current = "Police"
						veh.Lightbar.Remotes.ELSSwitchEvent:FireServer(current)
						print("fired")
					elseif current == "Police" then
						current = "Staff"
						veh.Lightbar.Remotes.ELSSwitchEvent:FireServer(current)
					end
				end
			end)
		end
	end
end)
#5 
UserInputService.InputBegan:Connect(function(input, processed)
    if processed then return end
    if input.KeyCode == Enum.KeyCode.L and UserInputService:IsKeyDown(Enum.KeyCode.LeftControl) then
       -- Left Control + L
    end
end)

If you want L to be inputted second, detect if the new input is L, then check if Left Control is held down (which is what the code sample I gave does)

#6

Creating nested event connections like that will create memory leaks

#7

Like what memory would even be leaked? Also why would it be leaked?

#8

You’re creating two new event connections every time UserInputService.InputBegan fires; this will multiply and continue firing the old events, even if they aren’t used