Since multiple proxies may independently trigger the installation
of the accelerator, the action counts the number of times this
function has been called and doesn’t remove the accelerator until
Action.disconnectAccelerator has been called as many times.
Installs the accelerator for action if action has an accel path and group. See Action.setAccelPath and Action.setAccelGroup
Since multiple proxies may independently trigger the installation of the accelerator, the action counts the number of times this function has been called and doesn’t remove the accelerator until Action.disconnectAccelerator has been called as many times.