Invert bit.
Source position: syshelph.inc line 999
| public function TWordHelper.ToggleBit( | 
| const Index: TWordBitIndex | 
| ):Word; | 
ToggleBit reads bit value from bit number determined by argument Index, inverts it (if it was 0 it becomes 1, and vice versa), and stores it back.
| 
 | Set bit to 1. | |
| 
 | Invert bit. | |
| 
 | Check bit. | |
| 
 | Return the position of the leftmost bit set. | |
| 
 | Return the position of the rightmost bit set. | |
| 
 | Count number of bits set. | |
| 
 | Read or write a bit. |