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4.8.2 KEY PRESSURE EVENTS
These events take place when a key is pressed, the raising of the event starts the execution of the associated action (see 4.8.5) if it is. The pressure of a key can be also simulated by software, see next paragraph.
4.8.3 EVENTS RAISED BY SOFTWARE
Programmer can raise events by software using the function Video_SendEvent inside the
target software or in the body of the procedure, using following syntax:
Video_SendEvent( event_id, param );
Where event_id is the identifier of the type of the event and param is an integer 16 bit
parameter.
PageLabsupports software events defined in this table:
Event
Parameter
kWM_NULL
Do not care
kWM_KEY
Key code
Simulates the pressure of the key
specified as parameter then cause the
associated action if it is.
Window ID
Causes a system message that, once
got by the system, causes the instant
opening of the alarm page that has
Window ID as identifier.
kWM_MSG
kWM_SELECT
Edit box handle
Description
No event.
In touchscreen systems simulates
the pressure on the edit box whose
handle is passed as parameter,
causing its selection or its transition
to edit mode.
kWM_PUSH
Button handle
In touchscreen systems simulates the
pressure on the button whose handle
is passed as parameter, causing the
execution of the associated action if
it is.
kEV_WM_
CHANGESETPAGE
Page number
Shows the page specified by the
parameter (if the context is a page in
which sets are used).
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