Constants
| ShiftMask | = | (1<<0) |
| LockMask | = | (1<<1) |
| ControlMask | = | (1<<2) |
| Mod1Mask | = | (1<<3) |
| Mod2Mask | = | (1<<4) |
| Mod3Mask | = | (1<<5) |
| Mod4Mask | = | (1<<6) |
| Mod5Mask | = | (1<<7) |
| Button1Mask | = | (1<<8) |
| Button2Mask | = | (1<<9) |
| Button3Mask | = | (1<<10) |
| Button4Mask | = | (1<<11) |
| Button5Mask | = | (1<<12) |
| AnyModifier | = | (1<<15) |
| META_MASK | = | (AnyModifier<<1) |
| ALT_MASK | = | (AnyModifier<<2) |
| EXTENDED_MASK | = | (AnyModifier<<3) |
| CommandMask | = | Mod1Mask |
| OptionMask | = | Mod2Mask |