KBDKEYINFO

KBDKEYINFO

Character data structure.

Type

UCHAR   chChar
UCHAR   chScan
UCHAR   fbStatus
UCHAR   bNlsShift
USHORT  fsState
USHORT  time

C Declaration Method

typedef struct

Fields

chChar

ASCII Character code.

The scan code received from the keyboard is translated to the ASCII character code.

chScan

Code received for the keyboard.

Scan code received from the keyboard is translated to the ASCII character code.

fbStatus

State of the keystroke event flag.

Bits 7-6 Has the following values:

00 Undefined.

01 Final character; interim character flag is turned off.

10 Interim character.

11 Final character; interim character flag is turned on.

Bit 5 - If set to 1, immediate conversion requested.

Bits 4-2 - Reserved.

Bit 1 - Has the following values:

0 Scan code is a character

1 Scan code is not a character; instead it is an extended key code from the keyboard.

Bit 0 - If set to 1, shift status returned without a character.

bNlsShift

NLS shift status. Reserved, must be 0.

fsState

Shift key status flag.

Values are:

Bit 15 SysReq key down

Bit 14 Caps Lock key down

Bit 13 NumLock key down

Bit 12 Scroll Lock key down

Bit 11 Right Alt key down

Bit 10 Right Ctrl key down

Bit 9 Left Alt key down

Bit 8 Left Ctrl key down

Bit 7 Insert on

Bit 6 Caps Lock on

Bit 5 NumLock on.

Bit 4 Scroll Lock on

Bit 3 Either Alt key down

Bit 2 Either Ctrl key down

Bit 1 Left Shift key down

Bit 0 Right Shift key down

time

Time stamp in milliseconds.

Time stamp indicating when a key was pressed. It is specified in milliseconds from the time the system was started.