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Shift as Integer |
An integer that corresponds to the state of the SHIFT, CTRL, and ALT keys at the
time of the event. The shift argument is a bit field with the least-significant
bits corresponding to the SHIFT key (bit 0), the CTRL key (bit 1), and the ALT
key (bit 2). These bits correspond to the values 1, 2, and 4, respectively.
Some, all, or none of the bits can be set, indicating that some, all, or none of
the keys are pressed. For example, if both CTRL and ALT are pressed, the value
of shift is 6.
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