KbdFreeFocus: Difference between revisions
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This call frees the logical-to-physical keyboard bond created by [[KbdGetFocus]]. | |||
This call frees the logical-to-physical keyboard bond created by KbdGetFocus. | |||
==Syntax== | ==Syntax== | ||
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==Return Code== | ==Return Code== | ||
;rc (USHORT) - return:Return code descriptions are: | |||
Return code descriptions are: | |||
* 0 NO_ERROR | * 0 NO_ERROR | ||
* 439 ERROR_KBD_INVALID_HANDLE | * 439 ERROR_KBD_INVALID_HANDLE | ||
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KbdFreeFocus may be replaced by issuing KbdRegister. Unlike other keyboard subsystem functions, the replaced KbdFreeFocus is called only if there is an outstanding focus. | 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 | === C === | ||
<PRE> | <PRE> | ||
#define INCL_KBD | #define INCL_KBD | ||
USHORT rc = KbdFreeFocus(KbdHandle); | USHORT rc = KbdFreeFocus(KbdHandle); | ||
HKBD KbdHandle; /* Keyboard handle */ | |||
USHORT rc; /* return code */ | |||
USHORT | |||
</PRE> | </PRE> | ||
===MASM | ===MASM=== | ||
<PRE> | <PRE> | ||
EXTRN KbdFreeFocus:FAR | EXTRN KbdFreeFocus:FAR |
Revision as of 16:11, 3 January 2019
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