| c | The character for this event. | 
| keyCode | The key code for this event. | 
| modifiers | Event modifier keys that are active for this event. | 
T An initialized event.
 Gets a keyboard event from the event pool and initializes it with the given values. Use this function
 instead of creating new events. Events obtained using this method need to be released back to the pool.
 You can use Dispose() to release them.
 
| systemEvent | A keyboard IMGUI event. | 
T An initialized event.
 Gets a keyboard event from the event pool and initializes it with the given values. Use this
 function instead of creating new events. Events obtained using this method need to be released
 back to the pool. You can use Dispose() to release them.