KbdGetCp (FAPI): Difference between revisions
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This call allows a process to query the code page being used to translate scan codes to ASCII characters. | This call allows a process to query the code page being used to translate scan codes to ASCII characters. | ||
==Syntax== | ==Syntax== | ||
KbdGetCp (Reserved, CodePageID, KbdHandle) | |||
KbdGetCp | |||
==Parameters== | ==Parameters== | ||
; | ;Reserved (ULONG) - input : Reserved and must be set to zero. | ||
;CodePageID (PUSHORT) - output : Address of the code page ID located in the application's data area. The keyboard support copies the current code page ID for a specified keyboard handle into this word. The code page ID is equivalent to one of the code page IDs specified in the CONFIG.SYS CODEPAGE = statement or 0000. | |||
; CodePageID (PUSHORT) - output : Address of the code page ID located in the application's data area. The keyboard support copies the current code page ID for a specified keyboard handle into this word. The code page ID is equivalent to one of the code page IDs specified in the CONFIG.SYS CODEPAGE = statement or 0000. | ;KbdHandle (HKBD) - input : Default keyboard or the logical keyboard. | ||
; KbdHandle (HKBD) - input : Default keyboard or the logical keyboard. | |||
==Return Code== | ==Return Code== | ||
rc (USHORT) - return | rc (USHORT) - return | ||
Return code descriptions are: | Return code descriptions are: | ||
* 0 NO_ERROR | |||
* 0 NO_ERROR | * 373 ERROR_KBD_PARAMETER | ||
* 373 ERROR_KBD_PARAMETER | * 439 ERROR_KBD_INVALID_HANDLE | ||
* 439 ERROR_KBD_INVALID_HANDLE | * 445 ERROR_KBD_FOCUS_REQUIRED | ||
* 445 ERROR_KBD_FOCUS_REQUIRED | * 447 ERROR_KBD_KEYBOARD_BUSY | ||
* 447 ERROR_KBD_KEYBOARD_BUSY | * 464 ERROR_KBD_DETACHED | ||
* 464 ERROR_KBD_DETACHED | |||
* 504 ERROR_KBD_EXTENDED_SG | * 504 ERROR_KBD_EXTENDED_SG | ||
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Returns WORD | Returns WORD | ||
</PRE> | </PRE> | ||
[[Category: | [[Category:Kbd]] |
Revision as of 06:38, 12 February 2017
This call allows a process to query the code page being used to translate scan codes to ASCII characters.
Syntax
KbdGetCp (Reserved, CodePageID, KbdHandle)
Parameters
- Reserved (ULONG) - input
- Reserved and must be set to zero.
- CodePageID (PUSHORT) - output
- Address of the code page ID located in the application's data area. The keyboard support copies the current code page ID for a specified keyboard handle into this word. The code page ID is equivalent to one of the code page IDs specified in the CONFIG.SYS CODEPAGE = statement or 0000.
- KbdHandle (HKBD) - input
- Default keyboard or the logical keyboard.
Return Code
rc (USHORT) - return
Return code descriptions are:
- 0 NO_ERROR
- 373 ERROR_KBD_PARAMETER
- 439 ERROR_KBD_INVALID_HANDLE
- 445 ERROR_KBD_FOCUS_REQUIRED
- 447 ERROR_KBD_KEYBOARD_BUSY
- 464 ERROR_KBD_DETACHED
- 504 ERROR_KBD_EXTENDED_SG
Remarks
The CodePageID is the currently active keyboard code page. A value of 0 indicates the code page translation table in use is the ROM code page translation table provided by the hardware.
Example Code
C Binding
#define INCL_KBD USHORT rc = KbdGetCp(Reserved, CodePageID, KbdHandle); ULONG Reserved; /* Reserved (must be zero) */ PUSHORT CodePageID; /* Code Page ID */ HKBD KbdHandle; /* Keyboard handle */ USHORT rc; /* return code */
MASM Binding
EXTRN KbdGetCp:FAR INCL_KBD EQU 1 PUSH DWORD Reserved ;Reserved (must be zero) PUSH@ WORD CodePageID ;Code Page ID PUSH WORD KbdHandle ;Keyboard handle CALL KbdGetCp Returns WORD