From: Heesob Park <phasis@...>
Date: 2009-03-24T00:18:05+09:00
Subject: Re: Windows : Retrive Quick Launch toolbar items

Hi,

2009/3/23 Ak Newfish <ak3003@ymail.com>:
> Hi Park,
>
> Thanks a ton! works fine.
>
> I have another problem pops up on my way, should need to get the
> Notification area items (where you can see "volume control"), present in
> the explorer/desktop area.
>
> How to get notification area items?
>
If you mean system tray icons, that's not easy as you think.
Here is the code:


require 'Win32API'

PROCESS_QUERY_INFORMATION = 1024
PROCESS_ALL_ACCESS = 0x1F0FFF
WM_USER = 0x400
TB_BUTTONCOUNT = (WM_USER+24)
TB_GETBUTTON = (WM_USER+23)
MEM_COMMIT = 0x1000
MEM_RELEASE = 0x8000
PAGE_READWRITE = 0x4
TBSTATE_HIDDE = 0x8

FindWindow = Win32API.new('user32', 'FindWindow', 'PP', 'L')
FindWindowEx = Win32API.new('user32', 'FindWindowEx', 'LLPP', 'L')
SendMessage = Win32API.new('user32', 'SendMessage', 'LILL', 'L')
GetWindowThreadProcessId = Win32API.new('user32',
'GetWindowThreadProcessId', 'LP', 'L')
OpenProcess = Win32API.new('kernel32', 'OpenProcess', 'LIL', 'L')
GetModuleFileNameEx = Win32API.new('psapi', 'GetModuleFileNameEx', 'LLPL', 'L')
CloseHandle = Win32API.new('kernel32', 'CloseHandle', 'L', 'L')
ReadProcessMemory = Win32API.new('kernel32', 'ReadProcessMemory', 'LLPLP', 'L')
VirtualAllocEx = Win32API.new('kernel32', 'VirtualAllocEx', 'LLLLL', 'L')
VirtualFreeEx = Win32API.new('kernel32', 'VirtualFreeEx', 'LLL', 'L')

def getProcessNameFromhWnd(dwhWnd)
	ppid = 0.chr * 4
	GetWindowThreadProcessId.call(dwhWnd,ppid)
	pid = ppid.unpack('L').first
	hProcess = OpenProcess.call(PROCESS_ALL_ACCESS, 0, pid)
	buffer = 0.chr * 1024
    cbLen = GetModuleFileNameEx.call(hProcess, 0, buffer, buffer.length)
    CloseHandle.call(hProcess)
    buffer.strip
end

#  Get the tray window handle. ( Window XP).
hWindow = FindWindow.call("Shell_TrayWnd", 0)
hWindow = FindWindowEx.call(hWindow, 0, "TrayNotifyWnd", 0)
hWindow = FindWindowEx.call(hWindow, 0, "SysPager", 0)
hWindow = FindWindowEx.call(hWindow, 0, "ToolbarWindow32", 0)

#  Get the count of buttons in tray window.
trayCount = SendMessage.call(hWindow, TB_BUTTONCOUNT, 0, 0)
ppid = 0.chr * 4
GetWindowThreadProcessId.call(hWindow, ppid)
pid = ppid.unpack('L').first
hProcess = OpenProcess.call(PROCESS_ALL_ACCESS, 0, pid)
addr = VirtualAllocEx.call(hProcess, 0, 24, MEM_COMMIT, PAGE_READWRITE)
for cb in 0 ... trayCount
  tray = 0.chr * 24
  tb = 0.chr * 20
  SendMessage.call(hWindow,TB_GETBUTTON,cb,addr)
  cbRead = 0.chr * 4
  ReadProcessMemory.call(hProcess,addr,tb,tb.length,cbRead)
  fsState = tb[8,1].unpack('c').first
  if fsState != TBSTATE_HIDDE
	ReadProcessMemory.call(hProcess,tb[12,4].unpack('L').first,tray,tray.length,cbRead)
	name = getProcessNameFromhWnd(tray[0,4].unpack('L').first)
	puts name
  end
end
VirtualFreeEx.call(hProcess,addr,0,MEM_RELEASE)
CloseHandle.call(hProcess)



Regards,

Park Heesob