AutoHotKey: Simulate winkey+s (universal search) by pressing ctrl+space

Question

Ideally I'd like ctrl+space to bring up "search everywhere" from anywhere in windows (8.1) and also dismiss it if it's already active (with something like #IfWinActive ...).

So far I've been able to make ctrl+space simulate pressing the winkey with the following AutoHotKey script:

<^Space::
KeyWait Ctrl
Send {RWin}
return

...but not winkey+s. It feels sort of hackish anyway because it doesn't initiate "on press." It only initiates once I've released the ctrl key.

P.S. If I can't get this figured out I'm taking suggestions for a good third party launcher application

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EDIT: Thanks to Robert. Here is the result:

<^Space::
SendInput {RWin Down}s{RWin Up}
return

Answer 1

One way to do this is through:

 SendInput, {RWin Down}s{RWin Up}

Answer 2

Really simple:

^Space::SendInput, #s