Sorry, what?

$ grep -r XCB_INPUT_FOCUS_POINTER_ROOT /usr/include/xcb/xproto.h 
    XCB_INPUT_FOCUS_POINTER_ROOT = 1,

From xproto.xml:

  <!-- used for revert_to and focus -->
  <enum name="InputFocus">
    <item name="None">       <value>0</value></item>
    <item name="PointerRoot"><value>1</value></item>
    <item name="Parent">     <value>2</value></item>  <!-- revert_to only -->
    <item name="FollowKeyboard"><value>3</value></item>  <!-- xinput extension only -->
    <doc>
[...]
    </doc>
  </enum>

Those are the options for "revert_to", not "focus"

For focus from the docs:

The window to focus. All keyboard events will be reported to window. The window must be viewable (TODO), or a match_error_t occurs (TODO).

focus is XCB_NONE (TODO), all keyboard events are discard‐until a new focus window is set.

focus is XCB_POINTER_ROOT (TODO), focus is on the root of the screen on which the pointer is on currently.

(In reply to sigstop from comment #2)
> Those are the options for "revert_to", not "focus"
> 
> For focus from the docs:
> 
> The window to focus. All keyboard events will be reported to window. The
> window must be viewable (TODO), or a match_error_t occurs (TODO).
> 
> focus is XCB_NONE (TODO), all keyboard events are discard‐until a new focus
> window is set.
> 
> focus is XCB_POINTER_ROOT (TODO), focus is on the root of the screen on
> which the pointer is on currently.

Um, sorry, I missed " <!-- used for revert_to and focus -->", however then the documentation is wrong still.

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