System Messages

Clear Input Buffer XG18

With type ahead, it is possible to have keystrokes buffered in the queue that are no longer appropriate for the application logic. This system message will clear the input buffer. Care should be taken when using this message in your application. The clearing of the buffer is indiscriminate; the buffer may contain keystrokes critical to your application logic. To clear the input buffer:

CALL "VIPCOM","XG18"

Disable/Enable Keyboard and Mouse XG19

At times, it may be desirable to prevent the user from entering keystrokes or making selections with the mouse. This system message can be used to disable and enable both the keyboard and the mouse. Implementing VIP messages in your application code should always been done with care. Issue messages incorrectly or at an inappropriate point in application logic can create conflicts for Dictionary-IV and OPENworkshop.

CALL "VIPCOM","XG190"    ! disable the keyboard and mouse.

CALL "VIPCOM","XG191"    ! enable the keyboard and mouse.

From the VIP for Dictionary-IV Reference, version 8.9.1. Open this page in the PDF