Leica tps1100, Руководство пользователя, Страница: 40 / 1154

GeoBASIC User Manual 8 — Typical GeoBASIC Programming
TPS1100-Version 2.10 8-7
•
for specifying which button is to add in
MMI_AddButton
, and
•
checking what button was pressed or that is returned from a system function.
Example:
We add the F1-button to the currently opened dialog, giving the meaning "
CONT
"
to it.
MMI_AddButton( MMI_F1_KEY, "CONT" )
Note The button id's are defined as constants in the compiler.
8.2.7 Responding to buttons
There are two procedures for coping with button presses:
•
MMI_CheckButton
queries whether there was a button pressed or not, and
•
MMI_GetButton
retrieves a pressed button. If there was no button pressed
it waits until one is pressed. The second parameter to
MMI_GetButton
(the
in-parameter
bAllKey
) determines what buttons are accepted:
−
If it is TRUE , any button is accepted.
−
If it is
FALSE
, only ESC, or a defined button (added with
MMI_AddButton
) are accepted.