# Pressing multiple keys at once on different rows

**URL:** <https://discourse.processing.org/t/pressing-multiple-keys-at-once-on-different-rows/1023>\
**Category:** Coding Questions\
**Created:** [June 17, 2018, 4:18am UTC](https://discourse.processing.org/t/pressing-multiple-keys-at-once-on-different-rows/1023 "2018-06-17T04:18:15Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![GoToLoop](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/gotoloop/32/86_2.png) [@GoToLoop](https://discourse.processing.org/u/GoToLoop)\
**Post date:** [June 17, 2018, 5:47am UTC](https://discourse.processing.org/t/pressing-multiple-keys-at-once-on-different-rows/1023/2 "2018-06-17T05:47:56Z")

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> **[Rollover (key)](https://en.wikipedia.org/wiki/Rollover_(key))**
>
> Rollover is the ability of a computer keyboard to correctly handle several simultaneous keystrokes. During normal typing on a conventional computer keyboard, only one key is usually pressed at any given time, then released before the next key is pressed. However, this is not always the case. When using modifier keys such as Shift or Control, the user intentionally holds the modifier key(s) while pressing and releasing another key. Rapid typists may also sometimes inadvertently press a key befor...

[http://Studio.ProcessingTogether.com/sp/pad/export/ro.9cfU11egvzT6G](http://Studio.ProcessingTogether.com/sp/pad/export/ro.9cfU11egvzT6G)

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