KBDINFO

Keyboard status data structure.

Type

USHORT  cb
USHORT  fsMask
USHORT  chTurnAround
USHORT  fsInterim
USHORT  fsState

C Declaration Method

typedef struct

Fields

cb

Length, in bytes, of this data structure.

10 - Only valid value.

fsMask

State mask.

The system state altered by this call. If bits 0 and 1 are off, the echo state of the system is not altered. If bits 2 and 3 are off, the binary and ASCII state of the system is not altered. If bits 0 and 1 are on, or if bits 2 and 3 are on, the function returns an error. If binary mode is set, echo is ignored.

Bits 15-9 - Reserved.

Bit 8 - Shift return is on.

Bit 7 - Length of the turn-around character (meaningful only if bit 6 is on).

Bit 6 - Turn-around character is modified.

Bit 5 - Interim character flags are modified.

Bit 4 - Shift state is modified.

Bit 3 - ASCII mode is on.

Bit 2 - Binary mode is on.

Bit 1 - Echo off.

Bit 0 - Echo on.

chTurnAround

Turnaround character.

Definition of the turn-around character. In ASCII and extended ASCII format, the turn-around character is defined as the carriage return. In ASCII format only, the turn-around character is defined in the low-order byte.

fsInterim

Interim character state and NLS shift state.

Bits 15-8 NLS shift state.

The meaning of the NLS shift varies by language. The following bits are defined to access this data:

NLSS_NLS1 (0x01) - Fullwidth, National layer

NLSS_NLS2 (0x02) - Katakana, JAMO phonetic

NLSS_NLS3 (0x04) - Hiragana, Hangeul, TsangJye

NLSS_APPL (0x10) - Application bit

NLSS_NLS4 (0x40) - Romanji, HanjaCsr

NLSS_KANJI (0x80) - Kanji, Hanji

Bit 7 - Interim character flag is on.

Bit 6 - Reserved.

Bit 5 - Application requested immediate conversion.

Bits 4-0 - Reserved.

fsState

Current shift state.

Bit 15 - SysReq key down.

Bit 14 - CapsLock key down.

Bit 13 - NumLock key down.

Bit 12 - ScrollLock 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 - CapsLock on.

Bit 5 - NumLock on.

Bit 4 - ScrollLock 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.