hotkeys | declarative library for handling hotkeys | Keyboard library

There is always an active window (the one that will get input).

E.g. the Win+X Menu has no title but a hidden ahk_class (LauncherTipWnd). To detect it you have to add DetectHiddenWindows, On in your script:

This works both on Linux and Windows, from within PyCharm and from within a terminal. I am sure there is a lot of unused functionality in PyQt, like this. It hurts me to write code like this because I prefer them lean and simple. Suggestions to that end are welcome.

The thing that was missing was listener.wait(), after starting the listener. This works:

Under MSW and Mac you can use wxWindow::RegisterHotKey() to be notified about key presses even when your application doesn't have focus. Unfortunately this function is not implemented for Linux/GTK port and I don't know how could this be done there. If you find a way to do it, don't hesitate to submit patches to wxWidgets itself, and then you could use this function under all platforms.

Exspression pyautogui.hotkey('alt', 'printscreen') retuns nothing, so you can't save image from it.

Simplest solution I could find is to install some extra modules:

pip install pillow keyboard

Module keyboard is used to create smarter hotkey with python function as callback.

Such function shoul press Print Screen to save image to clipboard, then we can get image from clipboard with PIL module and save it to file.

Here is the example:

So I was doing a little bit too much. This is all you need to target and focus different elements with hotkeys on a page using React. I ended up changing it to f keys but you can also do shift + number or any other key.

I unfortunately don't have a Windows System on hand to test, but i think i can guess what your problem is - but nice heisenbug, took me quite some time to figure out :D

Keep in mind that even if you have a registered hotkey the target window will still get the keypresses as well.
In addition to that SendInput will not reset the keyboard state:

This function does not reset the keyboard's current state. Any keys that are already pressed when the function is called might interfere with the events that this function generates. To avoid this problem, check the keyboard's state with the GetAsyncKeyState function and correct as necessary.

So from the view of the target window you would see the following key events:

• ALT down
• A down
• (hotkey activates)
• á down
• á up
• (user needs some time to release the keys)
• A up
• ALT up

Whereas if you're debugging, you'll probably release the keys once you hit the breakpoint, so the sequence would look like this:

• ALT down
• A down
• (hotkey activates)
• (breakpoint hits)
• (user releases keys)
• A up
• ALT up
• (resume process)
• á down
• á up

So that's the most likely reason why it works when you're debugging - you're releasing the keys once the breakpoint is hit.

The ALT-Key is a bit evil in itself - mainly because as long as you're holding down the ALT-Key the window will not get WM_KEYDOWN messages but only WM_SYSKEYDOWN messages: Key-Down and Key-Up Messages

The WM_SYSKEYDOWN message indicates a system key, which is a key stroke that invokes a system command. There are two types of system key:

• ALT + any key
• F10

All other key strokes are considered nonsystem keys and produce the WM_KEYDOWN message. This includes the function keys other than F10.

So basically the target app will ignore your input entirely because it only receives it as a SYSKEY message.

You can fix this by checking if the ALT key (or any other of the modifier keys) is still down when your hotkey is called, e.g. via GetAsyncKeyState() and then call SendInput() with a release event for that modifier key, then send your special character, and then revert the state of the modifier key back.

Also i would recommend batching up all the sent key events into a single SendInput() to make sure no user-input (or other programmatic input) is interleaved between your input events.

e.g.:

The KEYDOWN and KEYUP event provides the unicode attribute (see pygame.event module). The unicode attribute provides the Unicode representation of the keyboard input. A user friendly name of a key can be get by pygame.key.name():

I would pass your m_hAccelTable from CChristianLifeMinistryEditorDlg to CAssignHistoryDlg and add this to the beginning of CAssignHistoryDlg::PreTranslateMessage: