KbdSetFgnd

From EDM2
Jump to: navigation, search

This call raises the priority of the foreground keyboard's thread.

Syntax

KbdSetFgnd ()

Parameters

rc (USHORT) - return
Return code descriptions are:
  • 0 NO_ERROR
  • 447 ERROR_KBD_KEYBOARD_BUSY
  • 504 ERROR_KBD_EXTENDED_SG

Return Code

KbdSetFgnd marks the current process that owns the keyboard. Threads in this process receive a priority boost. The previous foreground keyboard threads lose their priority boost.

This function should only be issued by a Keyboard Subsystem during KbdCharIn or KbdStringIn processing.

Bindings

C

#define INCL_KBD

USHORT  rc = KbdSetFgnd(VOID);

USHORT  rc;            /* return code */

MASM

EXTRN  KbdSetFgnd:FAR
INCL_KBD            EQU 1

CALL   KbdSetFgnd

Returns WORD