Reaper stealing spacebar keystrokes in TextEditor


I have noticed that Reaper on OS X steals spacebar keystrokes when typing into a TextEditor component in my plugin. Pressing spacebar will toggle audio playback in Reaper, even when the TextEditor has focus.

I have observed the same behaviour in a couple of commercial Juce plugins, so I assume that the problem is not unique to me.

I also found a thread in the Reaper forum where someone describes the same problem:

That thread includes a Reaper-specific solution, but it would be great if it was possible to type spaces into a TextEditor without workarounds.

I haven’t noticed the same behaviour in non-Juce plugins (e.g. u-he’s plugins).

Any ideas?


We observed similar behaviour. Native Instruments plugins and a few others seem to be able to catch the spacebar tough. Would be nice if that could be fixed at some point.


Not just spacebar, but Return key too is captured by Reaper unless the “send all key presses” option is enabled (wouldn’t be surprised if there were more). Quite annoying.


Command+v (paste) is another key combo that isn’t passed by Reaper. I notice that Diva, which does capture spacebar and return keypresses, doesn’t capture Command+c & command+v either.