OpenEuphoria

win32lib HTrackBar

• Posted by 10963508 at europeonline.com Aug 20, 2002
• 503 views

Why doesn't w32HScroll event handler work for trackbars?
How can we know when did used change trackbar position?

Here is test code:

without warning
include win32lib.ew

integer Main_window, Horizontal_trackbar

procedure on_horizontal_trackbar_scroll (integer id,
    integer event, sequence params)
    ?1
end procedure

procedure main_test ()
    Main_window = create (Window, "trackbar scroll event bug",
        0, 0, 0, 300, 300, 0)
    Horizontal_trackbar = create (HTrackBar, "",
        Main_window, 0, 0, 200, 50, 0)
    setHandler (Horizontal_trackbar, w32HScroll,
        routine_id ("on_horizontal_trackbar_scroll"))
end procedure

main_test ()
WinMain (Main_window, Normal)