Function libui_ng_sys::uiWindowOnFocusChanged

pub unsafe extern "C" fn uiWindowOnFocusChanged(
    w: *mut uiWindow,
    f: Option<unsafe extern "C" fn(sender: *mut uiWindow, senderData: *mut c_void)>,
    data: *mut c_void
)

Registers a callback for when the window focus changes.

@param w uiWindow instance. @param f Callback function.\n @p sender Back reference to the instance that triggered the callback.\n @p senderData User data registered with the sender instance. @param data User data to be passed to the callback.

@note Only one callback can be registered at a time. @memberof uiWindow