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Am 14.12.2016 um 18:48 schrieb David Karr:
I've checked with Caffeine and traced mintty. It receives F15 key down, the key up. Caffeine claims to send key up only but that's not true. Please report this as a bug to Caffeine. X11 does not seem to handle F13...F24 at all because they don't appear on a typical PC keyboard (that's my assumption), so it doesn't occur in xterm. It generates a ~ only in terminal applications because a number of key escape sequences end with ~.On Mon, Dec 12, 2016 at 10:18 AM, David Karr <davidmichaelkarr@gmail.com> wrote:Win7. I believe my Cygwin version info is "2.5.2(0.297/5/3) 2016-06-23 14:29". I've been annoyed for a while with a symptom in my mintty windows. I will be typing along, or not, and suddenly a "~" character gets injected into the stream. It often is the only character at the prompt, so I can erase it and type my command, but it's really annoying when it appears while I'm typing. I was just reminded of it now when it injected the "~" right before I pressed enter on a "mkdir", so I had to then remove the dir I just created and recreate it. Is this something that Cygwin can control?I've determined what "instigates" this, but I find that it only mainly affects mintty and somewhat affects emacs. I've never seen a symptom in any other application. I use a tool called "Windows Caffeine" that is used to keep the display awake. It sends a "f15 key up" event every 59 seconds. That is what is producing the "~" character in the mintty window. I've also seen a symptom from this in Emacs, but it's harder to produce. It's not as simple as just having a text buffer in focus. I haven't been able to reliably produce it in Emacs, but the mintty symptom is very reproducible.
The key event from Caffeine can be distinguished from a real key event, because it does not include keyboard scancode information. So a workaround is possible in theory. I'm not sure though whether that's a good idea as there may be other applications that inject keys the same way, e.g. drivers of other input devices, like Braille.
Opinions and information are appreciated. ------ Thomas -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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