Global Windows Key Press
No need to Keyboard Hooking
. Just use RegisterHotKey
(Defines a system-wide hot key) and UnregisterHotKey
from Windows API. Try using these in C# from pinvoke.net or these tutorials:
- Global Hotkeys: Register a hotkey that is triggered even when form isn't focused.
- Simple steps to enable Hotkey and ShortcutInput user control
There is a sample in Microsoft Forums.
You can use these modifiers and Virtual-Key Codes:
MOD_ALT (0x0001) MOD_CONTROL (0x0002) MOD_NOREPEAT (0x4000) MOD_SHIFT (0x0004) MOD_WIN (0x0008)
for example F1 key is VK_F1 (0x70)
.
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Ionică Bizău
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Updated on July 11, 2022Comments
-
Ionică Bizău almost 2 years
I have a simple WPF application and I need to capture F1 key pressed in Windows (Operation System), even if my WPF window is minimized, or it isn't activated.
I have problems with detecting this. I searched on Internet and I found many results, but they didn't helped me.
For detecting a key pressed inside of application I used this simple code:
AddHandler(Keyboard.KeyDownEvent, (KeyEventHandler)KeyPressed); private void KeyPressed(object sender, KeyEventArgs e) { if (e.Key == Key.F1) { //my code went here } }
But this doesn't work when my window isn't activated.
So, my question is: how to detect global key press?
I repeat: It is a WPF application.
-
CodesInChaos almost 12 yearsWhat a pleasant surprise. For once I come to a global hotkey thread and the top answer is
RegisterHotKey
and notSetWindowsHookEx
. -
HgCoder almost 6 yearsI had errors on Windows 10 using the
MOD_WIN
modifier key. Windows may no longer allow you to hook with that modifier.