| UInt_t | fCode | key or button code | 
| Int_t | fCount | if non-zero, at least this many more exposes | 
| Int_t | fFormat | Next fields only used by kClientMessageEvent | 
| Handle_t | fHandle | general resource handle (used for atoms or windows) | 
| UInt_t | fHeight | width and height of exposed area | 
| Bool_t | fSendEvent | true if event came from SendEvent | 
| UInt_t | fState | key or button mask | 
| Time_t | fTime | time event event occured in ms | 
| EGEventType | fType | of event (see EGEventTypes) | 
| Long_t | fUser[5] | 5 longs can be used by client message events | 
| UInt_t | fWidth | |
| Window_t | fWindow | window reported event is relative to | 
| Int_t | fX | |
| Int_t | fXRoot | |
| Int_t | fY | pointer x, y coordinates in event window | 
| Int_t | fYRoot | coordinates relative to root | 
