KbdFreeFocus
- Syntax
- Parameters
- Return Code
- Remarks
- Bindings
  - C
  - MASM

This is part of Family API which allow to create dual-os version of program runs under OS/2 and DOS

Note: This is legacy API call. It is recommended to use 32-bit equivalent

2021/09/17 04:47 · prokushev · 0 Comments

2021/08/20 03:18 · prokushev · 0 Comments

KbdFreeFocus

This call frees the logical-to-physical keyboard bond created by KbdGetFocus.

Syntax

 KbdFreeFocus (KbdHandle)

Parameters

KbdHandle (HKBD) - input: Default keyboard or the logical keyboard.

Return Code

rc (USHORT) - return:Return code descriptions are:

0 NO_ERROR
439 ERROR_KBD_INVALID_HANDLE
445 ERROR_KBD_FOCUS_REQUIRED
464 ERROR_KBD_DETACHED
504 ERROR_KBD_EXTENDED_SG

Remarks

KbdFreeFocus may be replaced by issuing KbdRegister. Unlike other keyboard subsystem functions, the replaced KbdFreeFocus is called only if there is an outstanding focus.

Bindings

C

#define INCL_KBD
 
USHORT  rc = KbdFreeFocus(KbdHandle);
HKBD    KbdHandle;     /* Keyboard handle */
 
USHORT  rc;            /* return code */

MASM

EXTRN  KbdFreeFocus:FAR
INCL_KBD            EQU 1
 
PUSH   WORD    KbdHandle     ;Keyboard handle
CALL   KbdFreeFocus
 
Returns WORD

Family API
DOS	Process Manager	DosBeep DosExit DosSleep DosExecPgm
	File Manager	DosChDir DosChgFilePtr DosClose DosDelete DosDupHandle DosMkDir DosMove DosQCurDir DosQCurDisk DosSetFileMode DosOpen DosQFileInfo DosRead DosQFileMode DosQFSInfo DosQVerify DosRmDir DosSelectDisk DosFindClose DosFindFirst DosFindNext DosSetFileInfo DosSetVerify DosWrite DosFileLocks DosSetFHandState DosNewSize DosBufReset DosQFHandState DosSetFSinfo
	Memory Manager	DosFreeSeg DosSubAlloc DosSubFree DosSubSet DosAllocHuge DosAllocSeg DosReallocHuge DosReallocSeg DosGetHugeShift DosCreateCSAlias
	NLS	DosCaseMap DosGetCtryInfo DosGetDBCSEv DosSetCtryCode DosGetCollate DosGetMessage DosInsMessage DosPutMessage
	Date and Time	DosSetDateTime DosGetDateTime
	Devices	DosDevConfig DosDevIOCtl DosDevIOCtl2
	Signals	DosHoldSignal DosSetSigHandler
	Misc	BadDynLink DosGetEnv DosGetMachineMode DosGetVersion DosError DosErrClass DosSetVec
KBD		KbdCharIn KbdFlushBuffer KbdGetStatus KbdSetStatus KbdStringIn KbdPeek
VIO		VioGetBuf VioGetConfig VioGetCurPos VioGetCurType VioGetPhysBuf VioReadCellStr VioReadCharStr VioScrollUp VioScrollDn VioScrollLf VioScrollRt VioScrUnLock VioSetCurPos VioSetCurType VioSetMode VioGetMode VioShowBuf VioWrtCellStr VioWrtCharStr VioWrtCharStrAtt VioWrtNAttr VioWrtNCell VioWrtNChar VioWrtTTY VioScrLock VioPopUp
Tools		BIND
Modules		DOSCALLS.DLL VIOCALLS.DLL KBDCALLS.DLL MSG.DLL
Libraries		API.LIB OS2386.LIB FAPI.LIB DOSCALLS.LIB SUBCALLS.LIB

2018/08/25 15:05 · prokushev · 0 Comments

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