KBDKEYINFO: Difference between revisions
Appearance
No edit summary |
mNo edit summary |
||
Line 1: | Line 1: | ||
== KBDKEYINFO == | == KBDKEYINFO == | ||
Character data structure. | Character data structure. | ||
=== Type === | === Type === | ||
[[UCHAR]] chChar | |||
[[ | UCHAR chScan | ||
UCHAR fbStatus | |||
UCHAR bNlsShift | |||
[[USHORT]] fsState | |||
[[ | USHORT time | ||
==== C Declaration Method ==== | ==== C Declaration Method ==== | ||
typedef struct | typedef struct | ||
=== Fields === | === 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. | |||
[[Category: | [[Category:Data type]] |
Revision as of 15:13, 11 November 2016
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.
- Bits 7-6 Has the following values:
- 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.