KbdOpen

This call creates a new logical keyboard.

KbdOpen

(KbdHandle)

KbdHandle (PHKBD) - output

Address of the logical keyboard.
rc (USHORT) - return
Return code descriptions are:
• 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.

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