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

KbdOpen

This call creates a new logical keyboard.

Syntax

KbdOpen (KbdHandle)

Parameters

KbdHandle (PHKBD) - output : Address of the logical keyboard.

Return Code

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

0 NO_ERROR

440 ERROR_KBD_NO_MORE_HANDLE

441 ERROR_KBD_CANNOT_CREATE_KCB

464 ERROR_KBD_DETACHED

504 ERROR_KBD_EXTENDED_SG

Remarks

KbdOpen blocks while another thread has the keyboard focus (by way of KbdGetFocus) until the thread with the focus issues KbdFreeFocus. Therefore, to prevent KbdOpen from blocking, it is recommended that KbdOpen be issued only while the current thread has the focus. For example:

KbdGetFocus : wait until focus available on handle 0
KbdOpen : get a logical keyboard handle
KbdOpen : get another logical keyboard handle
KbdOpen : get yet another logical keyboard handle
KbdFreeFocus : give up the focus on handle 0.

Bindings

C

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

MASM

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