Omron NT631 Series Reference Manual page 70

Areas for Control/Notification
Functions of the Window
Control Area
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S Local window can be also opened, closed or moved by the operation of touch
Reference:
switch (page 299, 299). In addition, by setting the attribute of the screen (base
screen) to be displayed, local window pops up at the same time the screen is
displayed (refer to page 39).
S Global window can be controlled only by writing to the window control area
from the host.
S Window position (coordinate) can be specified by 20 dot unit. (Y coordinate =
multiple of 20-1, because of the bottom-left coordinate specification)
Window can not be controlled and the contents of the window remains un-
changed when the number other than multiple of 20 is specified for X coordi-
nate or when the number other than multiple of 20-1 is specified for Y coordi-
nate.
However, when opening a new window, the window is displayed at the position
which was specified when the window screen was created using the Support
Tool.
If the PT is currently operating, the status of the window is always written to the
window control area. The contents of the window control area depends on the
window type (global window/local window) and the circumstances as follows.
When The Window is Opened By Touch Switch Operation (Local Window
Only)
Window screen which is set for a touch switch pops up at the position which was
specified when the window was created using the Support Tool. At this time, the
status of the window is written to the screen No.. X coordinate and Y coordinate
of window control area (corresponding window type).
When The Window is Closed By Touch Switch Operation (Local Window
Only)
The screen No.. X coordinate and Y coordinate of window control area (corre-
sponding window type) are all cleared to 0.
When The Window Screen No. is Specified For screen No, of Window Con-
trol Area
The specified window is opened as the corresponding window type. The window
position follows the contents of X coordinate and Y coordinate of window control
area. However, in the following cases, the window is opened at the position
which was specified when the window was created using the Support Tool. (Win-
dow move operation is not performed and the X, Y coordinates return to the ex-
isting value when the incorrect X coordinate and Y coordinate are specified with-
out changing the screen No..)
• When the contents of X coordinate is not multiple of 20, or when the contents of
Y coordinate is not multiple of 20-1
• When the window will extend out of the screen with the specified value (for ex-
ample, when an NT31/NT31C is being used and an X coordinate of 300 and a
Y coordinate of 199 are specified for a window screen of 100 100 dots).
When 0 is Written to The Screen No. of Window Control Area
Window of the corresponding type is closed. The contents of X coordinate and Y
coordinate is retained.
When The Screen is Switched to The Other While The Window is Being
Displayed (Other Than System Screen)
The behavior depends on the screen type as follows. (Even when the global win-
dow and the local window were displayed before screen switching, the each
screen also behaves as the table below. )
Section 2-2
61