I usually put my Aptana (Aptana Studio 3, build: 3.3.1.201212171919) window in full screen on OSX. One intensely annoying feature is that it leaves full screen as soon as you hit escape. I use this key a lot, often indadvertedly. None of the other applications I have full screen seem to behave like this (eclipse, iterm, chrome).
I googled for it and found out that there is something called ToggleFullScreenEscapeHandler in aptana which seems like it is designed to do exactly the wrong thing here.
I checked the key preferences and there is no option for anything to do with fullscreen and the escape button was actually bound to hiding the find screen.
So how do you turn this thing off?
Personally, I think it is kind of weird to have any application global function bound to escape at all given how often it is used in a context specific way.
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I have a MacBook Pro running Catalina with an additional display. I typically have my development-related apps on one display (iTerm2, VSCode, etc.) and everything else on the other display (Chrome, Slack, etc.)
Sometimes (not all the time), when I switch desktops (Ctrl+left or Ctrl+right), access an app using Spotlight (Cmd+space and type), or use Cmd+Tab to switch applications, the focus would suddenly jump to iTerm2 or VSCode. This happens even if iTerm2 or VSCode isn't currently showing; for example, if I try to switch to Chrome on display 1 and iTerm2 is on a different hidden desktop on display 2, Chrome would appear on display 1 and then display 2 would show the desktop containing iTerm2 sliding into view (along with focusing iTerm2).
This severely impacts workflow, since this behavior is unpredictable and involves a lot of typing in the wrong application and reaching for the mouse. What is causing this behavior?
I found that it only happens when I have windows of the same app on both screens.
Say I switch desktop on a screen 1 and Chrome should become active there, then if I also have a Chrome window on my screen 2, it's actually the one on screen 2 that becomes active. Very frustrating..
This bug still exists in macOS Big Sur 11.4. Another symptom is that, after the erroneous focusing happens, manually switching to a space with no windows in it will leave that focused app focused, after briefly focusing Finder, rather than just focusing Finder. It's this last erroneous focusing that causes the space-switching.
Workaround: when it happens, invoke "Show All" from the menu bar (I have a keyboard shortcut for this). Note that switching to an empty space now does a single focusing of Finder, and no further space-switching happens.
Ctrl+Escape is a global Windows shortcut for opening main system menu. But I would like my Qt application to use this shortcut without triggering Windows main menu. I know it is probably a bad idea to override system shortcuts in general, but I would like to use this shortcut is a very limited use case.
This usecase is as follows. I have a popup window containing several rows or items. This window is opened by Ctrl+Tab and while the user holds Ctrl and keep pressing Tab, the current rows are cycled through. When the user releases Ctrl, the current row is used for some operation... But sometimes it happens that user presses Ctrl+Tab and then realizes he does not want to continue. He usually presses Escape while still holding Ctrl. And then it triggers Windows system menu and normal user gets confused, choleric user get angry... which is a bad thing. In other words I would like to be able to close the popup window when user presses Ctrl+Escape. How to do that? It is even possible?
If I write the code using this shortcut like any other short, it does not work and it always triggers Windows main menu.
As I understand it, Qt will typically not receive the key event if the underlying window system has intercepted it. For example even QtCreator cannot override system-wide shortcuts.
This question is almost a duplicate of: C++/Qt Global Hotkeys
While that question is asking specifically to capture shortcuts in a hidden/background application, I think the basic concept is the same -- capture shortcuts before the window system processes them.
From that answer, UGlobalHotkey seems pretty good, and the How to use System-Wide Hotkeys in your Qt application blog post could be useful for your limited-use case (but read the comments on that blog post about fixing the example).
Also found:
https://github.com/mitei/qglobalshortcut
https://github.com/Skycoder42/QHotkey (looks like a more detailed version of above)
I want to change some tmux styling when the terminal loses focus/becomes inactive (i.e. when I've clicked on an open Google Chrome window). I know I could check with the window manager to see which application window is focused, but this doesn't work across window managers.
Do terminal emulators themselves expose this information at all?
I tried running showkey -a to see if any escape sequence was sent when focus was lost, and it doesn't look like it.
I think some terminals implement this, but not all, based on this comment on the issue tracker for the vim-tmux-focus-events plugin:
About the question "I was expecting the event to fire when changing focus between different windows in my window manager": yea, I see how that would be very useful. I think this might be dependent on the terminal application you're using. I just tested this on OSX and here's some quick results:
it's working for iTerm when tmux is running inside the window
not working for iTerm running plain bash + vim inside (no tmux)
not working for Terminal.app (with or without tmux)
[...]
So, if I'm not wrong, it's up to terminal applications to implement "focus gained", "focus lost" functionality.
I have a vague memory (though I don't remember for sure) that focus gain/loss might have worked for me when using that plugin and gnome-terminal, so it might be worth a try.
I've just encountered a really bizarre scenario and can't find any info on this elsewhere. When Xcode breaks at my breakpoints, all keyboard entry for the whole system is unresponsive. I can switch to another app but no key strokes are recorded. Xcode itself is unresponsive to keyboard input.
Anybody else seen this?
I'm running 10.10.1 and Xcode 6.1.
Based on the comments above it would seem that this issue has to do with behind the scenes details of Powerbox. To explain further: my app is sandboxed and calls NSOpenPanel. When breaking (Xcode breakpoint) in the completion block of NSOpenPanel I experience system-wide keyboard input loss.
Keyboard entry behaves normally in breakpoints outside of the call to NSOpenPanel. After working past this area of code I observed that my subsequent operations (queued in the background from the completion bock) often finish before the NSOpenPanel is completely torn down (disappears from the screen). My assumption is that until NSOpenPanel is removed from the screen (and maybe further after), Powerbox won't release control of the keyboard.
Much of this is assumption since I don't have the actual Powerbox code and can't step into it but it seems to fit.
I worked around my debugging issues by utilizing print statements and stepping through code with the variable inspector open. Mouse input continues to function so you can right-click (if you have a two-button mouse) on the variable and print its description at least.
Thanks for the help Ken.
UPDATE
I am now delaying execution of any of my post-NSOpenPanel actions using dispatch_after. On my system a delay of 1 second is doing the trick. I really don't like adding arbitrary delays but this seems to work.
I read the following code in Unix Power Tools on page 117
*VT100.Translations: #override\
Button1 <Btn3Down>: select-end(primary,CUT_BUFFER0,CLIPBOARD)\n\
!Shift <Btn2Up>: insert-selection(CLIPBOARD)\n\
~Shift ~Ctrl ~Meta <Btn2Up>: insert-selection(primary,CUT_BUFFER0)
I have not managed to see any effect of the above code.
How can you use X clipboard in Screen, without your mouse?
Using the mouse. Left-click drag to select and usually the middle mouse button pastes but some terminals may differ (PuTTY uses right-click). If you only have two buttons you click them both together (left mouse button + right mouse button).
In reply to comment below ("Can you do it without your mouse?"):
ctrl-insert : copy
shift-insert : paste
shift-delete : cut
shift-ctrl-C : copy
shift-ctrl-V : paste
Not all applications will support the last three (though Konsole does). In fact most console applications will not allow you to delete text once it's printed.
As far as selecting text without a mouse I'm not sure there's a generic mechanism for that. It's probably terminal and/or application specific (ie, vim has it's own keys for marking and copying text - but only within vim). You could do it with mouse emulation but I'm sure that would be a painful process.
You can't use the traditional Mac/Windows shortcuts in a terminal because they were reserved for different actions long before these OS existed (ie, Ctrl-C terminates the running process).
I'm trying to use Ctrl-C in X
X does not handle these operations directly, they are handled by the application. That's why modern GUI programs like Firefox or Gedit support Ctrl-C for copy but terminals and command-line programs generally do not. As I said, it's a conflict in established conventions and Ctrl-C for kill got in first.
BTW, you could do some key-remapping if it drives you nuts but then you would be learning bad habits when you use a different machine. Best to just get used to it or do most of your editing in a GUI application.
More Information
EDIT: For a Mac, this may help: MacOSX-to-Konsole or This or This. It looks like you need to replace Ctrl with Command on Mac keyboards. It seems like Terminal the mac console has a right-click context menu for copy-paste so to do it the traditional way you me need to install a different console program or change some settings in Terminal.