KEYBOARD_SCAN_STATE enumeration (ntdd8042.h)

The KEYBOARD_SCAN_STATE enumeration type indicates the scan state of an input byte from a keyboard.

Syntax

typedef enum _KEYBOARD_SCAN_STATE {
  Normal,
  GotE0,
  GotE1
} KEYBOARD_SCAN_STATE, *PKEYBOARD_SCAN_STATE;


`Normal` Indicates that the current byte is a Normal scan code (a nonextended code).
`GotE0` Indicates that the current byte is an E0 extended scan code.
`GotE1` Indicates that the current byte is an E1 extended scan code.

This enumeration type is used as input to an optional KbFilter_IsrHook routine, which can be supplied by a vendor-supplied keyboard filter driver.

Requirement	Value
Header	ntdd8042.h (include Ntdd8042.h)