User`s guide

Creating a Slide Bar
V+ allows you to create a V+feature similar to the window scroll bars called slide bars. The
syntax for a slide bar is:
GSLIDE (glun, mode) slide_id = x, y, len, max_pos, arrow.inc, handle
glun The logical unit of the window the slide bar is created in.
mode is replaced with:
0 indicating a horizontal slide bar is to be created or updated.
1 indicating a slide bar is to be deleted.
2 indicating a vertical slide bar is to be created or updated.
slide_id A number that identifies the slide bar. This number is returned to the
event queue so you can distinguish which slide was moved.
x y The coordinates of the top left corner of the slide bar.
len The width or height of the bar.
max_pos Specifies the maximum value the slide bar returns.
arrow_inc Specifies the increment the slide bar registers when the arrows are
clicked. (The slide bar is created with a scroll handle and scroll arrows.)
handle Specifies position the scroll handle is in when the slide bar is created.
GSLIDE Example
We will be interested in two events when monitoring a slide bar, event 8 (slide bar pointer
move) and event 9 (slide bar button up). Additional event monitoring must be enabled with
the FSET instruction. Object must be specified to monitor slide bars and move_b2 must be
specified to monitor the dragging of the middle button.
The values returned in the GETEVENT array will be:
l event[0] the pointer device event code
l event[1] the ID of the slide bar (as specified by slide_id)
l event[2] the slide bar value
l event[3] the maximum slide bar value
The following code will display and monitor a slide bar:
; The slide bar will be in the window open on glun
; The slide bar will use events 8 and 9. A double-click event ; will halt
; monitoring of the slide bar
Creating a Slide Bar
(Undefined variable: Primary.Product_Name_V)Language User's Guide, version
17.x
Page 255