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Contents
require 'ffi'
module Redcar
class ApplicationSWT
class Window
# it appears that swt offers no real way to
# bring a window to the front
# force_active doesn't seem to work as expected, at least on doze
# http://stackoverflow.com/questions/2315560/how-do-you-force-a-java-swt-program-to-move-itself-to-the-foreground
# this hack around seems to work for windows.
module BringToFront
extend FFI::Library
ffi_lib 'user32', 'kernel32'
ffi_convention :stdcall
attach_function :GetForegroundWindow, [], :long
attach_function :SetForegroundWindow, [:long], :int
attach_function :GetWindowThreadProcessId, [:long, :pointer], :int
attach_function :AttachThreadInput, [:int, :int, :int], :int
attach_function :GetCurrentThreadId, [], :int # unused
def self.bring_window_to_front hwnd_int
wanted = hwnd_int
top_window = BringToFront.GetForegroundWindow
if top_window == 0
# should be able to set it without delay?
if(BringToFront.SetForegroundWindow(wanted) > 0)
return true
end
end
top_pid = BringToFront.GetWindowThreadProcessId(top_window, nil)
wanted_pid = BringToFront.GetWindowThreadProcessId(hwnd_int, nil)
if top_pid == wanted_pid
if(BringToFront.SetForegroundWindow(wanted))
return true
end
end
if top_pid > 0 && wanted_pid > 0
if (BringToFront.AttachThreadInput(wanted_pid,top_pid,1) == 0)
return false
end
BringToFront.SetForegroundWindow(wanted)
BringToFront.AttachThreadInput(wanted_pid, top_pid,0)
return true
else
return false
end
end
end
end
end
end
Version data entries
41 entries across 41 versions & 2 rubygems