10.7.2 Focus Events Generated by Grabs

• When a keyboard grab activates before generating any actual KeyPress event that activates the grab, G is the grab_window, and F is the current focus, the X server does the following:

  • It generates FocusIn and FocusOut events, with the mode members of the XFocusInEvent and XFocusOutEvent structures set to NotifyGrab. These events are generated as if the focus were to change from F to G.

• When a keyboard grab deactivates after generating any actual KeyRelease event that deactivates the grab, G is the grab_window, and F is the current focus, the X server does the following:

  • It generates FocusIn and FocusOut events, with the mode members of the XFocusInEvent and XFocusOutEvent structures set to NotifyUngrab. These events are generated as if the focus were to change from G to F.

Next: Key Map State Notification Events