Specifies a key code.
lt.Controls.Keys = {None: 0,LButton: 1,RButton: 2,Cancel: 3,MButton: 4,Enter: 13,Escape: 27,Space: 32,PageUp: 33,PageDown: 34,End: 35,Home: 36,Left: 37,Up: 38,Right: 39,Down: 40,Alt: 262144,Shift: 65536,Control: 131072,KeyCode: 65535,Modifiers: -65536}
lt.Controls.Keys = {None: 0,LButton: 1,RButton: 2,Cancel: 3,MButton: 4,Enter: 13,Escape: 27,Space: 32,PageUp: 33,PageDown: 34,End: 35,Home: 36,Left: 37,Up: 38,Right: 39,Down: 40,Alt: 262144,Shift: 65536,Control: 131072,KeyCode: 65535,Modifiers: -65536}
| 0 | None | (0) No key | 
| 1 | LButton | (1) Left mouse button | 
| 2 | RButton | (2) Right mouse button | 
| 3 | Cancel | (3) Cancel key (Escape by default) | 
| 4 | MButton | (4) Middle mouse button | 
| 13 | Enter | (13) Enter key | 
| 27 | Escape | (27) Escape key | 
| 32 | Space | (32) Space key | 
| 33 | PageUp | (33) Page up key | 
| 34 | PageDown | (34) Page down key | 
| 35 | End | (35) End key | 
| 36 | Home | (36) Home key | 
| 37 | Left | (37) Left key | 
| 38 | Up | (33) Page up key | 
| 39 | Right | (39) Right key | 
| 40 | Down | (34) Page down key | 
| 262144 | Alt | (262144) ALT key | 
| 65536 | Shift | (65536) Shift key | 
| 131072 | Control | (131072) Control key | 
| 65535 | KeyCode | (65535) Mask for key codes | 
| -65536 | Modifiers | (-65536) Mask for modifier keys | 
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