Basically, I need a hotkey that can be used anywhere (is this called "global"?), but I'm not sure how to go about it.  I have had a look in a few scripts (including Matty's hotkey example script), but either they're for picking up the key combination within a window, or I have no idea how it works... 

The problem with some scripts is, that they cannot be used anywhere (indeed "global"). They only listen for keypresses when a window is in the foreground (which is called "local"; although I still have problems specifying whether the window is actually in the foreground..).

However, you may try Matti's "Countdown live" script. There's a file called "GlobalHotkey.js". See if you can do anything with that

Well you can also look into my HopperLive script's CHopkeyReceiver.js file. Basically you just need to know how RegisterHotKey() API works, how PlusWnd.RegisterMessageNotification() works and how OnWindowIdEvent_MessageNotification() works

I've added the following lines to my script:

Javascript code:

---

var MOD_ALT = 0x1;
var MOD_CONTROL = 0x2;
var MOD_SHIFT = 0x4;
var WndSbc = MsgPlus.CreateWnd("Windows.xml", "WndSubclass", 2);
RegisterHotKey(WndSbc.Handle, "OpenMenu", MOD_ALT + MOD_SHIFT, 0x4D);

---

Javascript code:

---

WndSbc.RegisterHotKey(WndSbc.Handle, "OpenMenu", MOD_ALT + MOD_SHIFT, 0x4D);

---

"RegisterHotkey" is a Win32 API function and is located in the "user32.dll" library. You can find this at the bottom of the MSDN page. This means you have to use Interop.Call() to call this function.

Javascript code:

---

Interop.Call("user32", "RegisterHotKey", WndSbc.Handle, "OpenMenu", MOD_ALT + MOD_SHIFT, 0x4D);

---

MOD_ALT | MOD_SHIFT?

Also, what you do with the "OpenMenu" thingy is wrong. you have to send a number, not a string. This works, because Plus! sends the pointer to your string (which is actually a number), but you need to use something like 0x100.

Ok.  Just one other thing.  "MOD_CONTROL" and "MOD_ALT" work fine, but I can't seem to get "MOD_SHIFT" to work (0x4).  Is this the wrong number?

Weird, it is the right number...

Also (just to make sure you know about this), in the OnWindowIDEvent_MessageNotification() function, you might want to check for the hotkey identifier (that is the 0x100 number I told ya about). The wParam is this identifier.

Javascript code:

---

function OnWndSubclassEvent_MessageNotification(PlusWnd, Message, wParam, lParam)
{
    if (wParam == 0x100)
    {
        // ...
    }
}

---

Yep. What also works (and saves some typing) is this:

JScript code:

---

function OnWndSubclassEvent_MessageNotification(PlusWnd,Message,wParam,lParam) {
    switch(wParam) {
        case 0x100:
            // do stuff
        break;
        case 0x101: // A different ID for a different hotkey
            // do other stuff
        break;
        case 0xN:
            // do other other stuff
        break;
    }
    // do whatever else ya want
}

---

Although I won't need that, since I only plan to use one notification. 

Just to let ya know

Actually, I changed my mind.    It's going to have multiple menus (code incorporated)... 

Told you

How are you actually planning to do your menus?

I've just finished the script, and I'll make a topic for it in a mo (it's called "QuickKey").