How to: Bind F13 to F24 keys on the G-keys (Logitech Gaming Keyboards)

logitech-bind-f13-f24.lua

-- How to use this script:
-- 1. Install the Logitech Gaming Software: http://support.logitech.com/en_us/software/lgs
-- 2. Launch it, and right click on your profile (the gear icon) and then click on "Scripts".
-- 3. Add the following code into the Script window, save it, and close it. Enjoy.
-- Now G1 is bound to F13, G2 to G14, ... G12 to F24.

function OnEvent(event, arg)

  -- OutputLogMessage("event = %s, arg = %s\n", event, arg) 

  fKey = {
    [1]  = 0x64, -- F13
    [2]  = 0x65, -- F14
    [3]  = 0x66, -- F15
    [4]  = 0x67, -- F16
    [5]  = 0x68, -- F17
    [6]  = 0x69, -- F18
    [7]  = 0x6A, -- F19
    [8]  = 0x6B, -- F20
    [9]  = 0x6C, -- F21
    [10] = 0x6D, -- F22
    [11] = 0x6E, -- F23
    [12] = 0x76  -- F24
  }

  if (event == "G_PRESSED") then
    PressKey(fKey[arg])
  end

  if (event == "G_RELEASED") then
    ReleaseKey(fKey[arg])
  end

end

This code won't work for mouse such as the G600. For those who want to implement this on a mouse, use the following new and greatly improved code:

-- How to use this script:
-- 1. Install the Logitech Gaming Software: http://support.logitech.com/en_us/software/lgs
-- 2. Launch it, and right click on your profile (the gear icon) and then click on "Scripts".
-- 3. Add the following code into the Script window, save it, and close it. Enjoy.
-- Now G9 on your G600 mouse is bound to F13, G10 to G14, ... G12 to F24.

function OnEvent(event, arg)
    -- Enable logging
    EnablePrimaryMouseButtonEvents(true)

    -- Table mapping mouse button numbers to F-key hex codes
    local fKeys = {
        [9] = 0x64,  -- F13
        [10] = 0x65, -- F14
        [11] = 0x66, -- F15
        [12] = 0x67, -- F16
        [13] = 0x68, -- F17
        [14] = 0x69, -- F18
        [15] = 0x6A, -- F19
        [16] = 0x6B, -- F20
        [17] = 0x6C, -- F21
        [18] = 0x6D, -- F22
        [19] = 0x6E, -- F23
        [20] = 0x76, -- F24
    }

    -- Debug function to get F-key name from hex code
    local function getFKeyName(hexCode)
        for i, code in pairs(fKeys) do
            if code == hexCode then
                return "F" .. (i + 4)  -- Adjusted to start from F13
            end
        end
        return "Unknown"
    end

    -- Function to handle key press and release
    local function handleKey(keyAction)
        if fKeys[arg] then
            local fKeyHex = fKeys[arg]
            local fKeyName = getFKeyName(fKeyHex)
            local actionName = keyAction == PressKey and "Pressing" or "Releasing"
            
            OutputLogMessage("Mouse button %d: %s %s (Hex: 0x%02X)\n", arg, actionName, fKeyName, fKeyHex)
            keyAction(fKeyHex)
        else
            OutputLogMessage("Unhandled mouse button: %d\n", arg)
        end
    end

    OutputLogMessage("Event: %s, Arg: %d\n", event, arg)

    if event == "MOUSE_BUTTON_PRESSED" then
        handleKey(PressKey)
    elseif event == "MOUSE_BUTTON_RELEASED" then
        handleKey(ReleaseKey)
    end
end

Old Logitech Keyboard and software user and this worked great, thank you. I then used the binds themselves to update the labels in the software too.

Export the configuration file, add the following code, and then import it. And so on. You can add any buttons you like without affecting the original functions.
<macro guid="{F13_GUID}" color="4278246655" name="F13" hidden="false" original="true"> <keystroke xmlns="http://www.logitech.com/Cassandra/2010.1/Macros/Keystroke"> <key value="F13"/> </keystroke> </macro> <macro guid="{F14_GUID}" color="4278246655" name="F14" hidden="false" original="true"> <keystroke xmlns="http://www.logitech.com/Cassandra/2010.1/Macros/Keystroke"> <key value="F14"/> </keystroke> </macro> <macro guid="{F15_GUID}" color="4278246655" name="F15" hidden="false" original="true"> <keystroke xmlns="http://www.logitech.com/Cassandra/2010.1/Macros/Keystroke"> <key value="F15"/> </keystroke> </macro> <macro guid="{F16_GUID}" color="4278246655" name="F16" hidden="false" original="true"> <keystroke xmlns="http://www.logitech.com/Cassandra/2010.1/Macros/Keystroke"> <key value="F16"/> </keystroke> </macro> <macro guid="{F17_GUID}" color="4278246655" name="F17" hidden="false" original="true"> <keystroke xmlns="http://www.logitech.com/Cassandra/2010.1/Macros/Keystroke"> <key value="F17"/> </keystroke> </macro> <macro guid="{F18_GUID}" color="4278246655" name="F18" hidden="false" original="true"> <keystroke xmlns="http://www.logitech.com/Cassandra/2010.1/Macros/Keystroke"> <key value="F18"/> </keystroke> </macro> <macro guid="{F19_GUID}" color="4278246655" name="F19" hidden="false" original="true"> <keystroke xmlns="http://www.logitech.com/Cassandra/2010.1/Macros/Keystroke"> <key value="F19"/> </keystroke> </macro> <macro guid="{F20_GUID}" color="4278246655" name="F20" hidden="false" original="true"> <keystroke xmlns="http://www.logitech.com/Cassandra/2010.1/Macros/Keystroke"> <key value="F20"/> </keystroke> </macro> <macro guid="{F21_GUID}" color="4278246655" name="F21" hidden="false" original="true"> <keystroke xmlns="http://www.logitech.com/Cassandra/2010.1/Macros/Keystroke"> <key value="F21"/> </keystroke> </macro> <macro guid="{F22_GUID}" color="4278246655" name="F22" hidden="false" original="true"> <keystroke xmlns="http://www.logitech.com/Cassandra/2010.1/Macros/Keystroke"> <key value="F22"/> </keystroke> </macro> <macro guid="{F23_GUID}" color="4278246655" name="F23" hidden="false" original="true"> <keystroke xmlns="http://www.logitech.com/Cassandra/2010.1/Macros/Keystroke"> <key value="F23"/> </keystroke> </macro> <macro guid="{F24_GUID}" color="4278246655" name="F24" hidden="false" original="true"> <keystroke xmlns="http://www.logitech.com/Cassandra/2010.1/Macros/Keystroke"> <key value="F24"/> </keystroke> </macro>