Keystroke

Ad Mulders · **Posted:** September 18th, 2019, 2:33 pm

Hi,
I have an ATEM video switcher that can be controlled by the keys of the computer keyboard.
Now i want to make a program to log the keystrokes and the possibility to play it back.

Is there a way to do that?

mackavi · **Posted:** September 21st, 2019, 12:42 pm

If you're only checking a few key strokes, then it might be easier to use the Opus actions but if they don't do what you need then you can register your own event handler:

Code:

var myEvent = this.RegisterEventHandler("keypress", this.keyCheck)

This causes an event to fire whenever a key is pressed. The event calls the function named - 'keyCheck' so you'll have to define that to do something:

Code:

function keyCheck(e) {
var keycode = e.key;
Debug.trace(keycode);
}

This function receives the event as 'e' and from that extracts the key that was pressed and stores the value in the 'keycode' variable.

</mack>

Ad Mulders · **Posted:** September 22nd, 2019, 7:05 am

Thanks Mac,
I found this function on the script help page but didn't get it work.
The recorded keystroke must control an external device when play back. With this function
it writes the recorded in a variable... am i right, or not smart enough?

Kind Regards,
Ad

mackavi · **Posted:** September 22nd, 2019, 11:06 am

Does your Opus application control the external device already?

</mack>

Ad Mulders · **Posted:** September 24th, 2019, 8:46 pm

Hi Mac,
No, not yet.

What i like to make is a program as CuePilot. That is a very expensive piece of software to control high end broadcast switchers.
A lot of people use the popular ATEM video switcher and therefor i like to make a kind of automation.
This is a video of CuePilot works. You can download a full version to play with but it can't control a switcher.
https://www.youtube.com/watch?v=GTZDn1BwVuQ

This is the website of CuePilot
https://www.cuepilot.com/

mackavi · **Posted:** September 25th, 2019, 8:46 pm

Opus doesn't include that sort of functionality directly.

It supports, if you can source or write one, DLLs that would allow simulating of key presses and communication with external hardware.

</mack>

Ad Mulders · **Posted:** September 26th, 2019, 11:34 am

So i need a DLL. Or write one...

mackavi · **Posted:** September 26th, 2019, 5:20 pm

Yes A or B should do :-)

</mack>

Ad Mulders · **Posted:** September 28th, 2019, 6:46 am

Hi Mack
Do you have a dll solution in your magic toolkit?
My skills are not that good enough to make it myself.

mackavi · **Posted:** September 30th, 2019, 9:25 am

Sorry, but the DLL hasn't been touched since the last update in 2017 when I added the latest round of features and Uno support.

If I can find some time and recall how the process works, I may be able to add a sendkeys function but direct access to an external device would require more specific understand that I don't have.

</mack>

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Keystroke

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