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Do not consider extended scan codes in Windows #1357

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Do not consider extended scan codes in Windows #1357

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d549350
Do not consider extended scan codes in Windows
user202729 Jun 18, 2021
7353fc9
Change 0x10 constant to LLKHF_INJECTED constant name in Windows oslay…
user202729 Jun 18, 2021
d8fa159
Add news fragment
user202729 Jun 18, 2021
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1 change: 1 addition & 0 deletions news.d/bugfix/1357.windows.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Do not consider extended scan codes in Windows keyboard capture.
10 changes: 9 additions & 1 deletion plover/oslayer/windows/keyboardcontrol.py
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Expand Up @@ -102,6 +102,11 @@ class INPUT(ctypes.Structure):
INPUT_MOUSE = 0
INPUT_KEYBOARD = 1

KF_EXTENDED = 0x0100
LLKHF_EXTENDED = KF_EXTENDED >> 8
LLKHF_LOWER_IL_INJECTED = 0x0002
LLKHF_INJECTED = 0x0010


# Process utils code code based on psutil implementation.

Expand Down Expand Up @@ -318,7 +323,10 @@ def _run(self):
passthrough_down_keys = set()

def on_key(pressed, event):
if event.flags & 0x10:
if event.flags & LLKHF_EXTENDED:
return False

if event.flags & LLKHF_INJECTED:
# Ignore simulated events (e.g. from KeyboardEmulation).
return False
if event.vkCode in PASSTHROUGH_KEYS:
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