Get notification buttons info - c# & api

[deciacco]

I need some help trying to figure out why the code below does not work.

I'm trying to cycle through the icons in the notification area
and get button information.

Everything runs fine, but my TBUTTONINFO struct does not get
populated. iIndex:False is further evidence that things aren't working,
and I think I'm not setting the dwMask correctly.

Thanks!!

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Here is the output of the log from Spy++
spying on ToolbarWindow32 :
*************** *************** *************** *************
<00001000D007 8 S TB_BUTTONCOUNT
<00002000D007 8 R TB_BUTTONCOUNT nCount:5
<00003000D007 8 S TB_GETBUTTONINF OW iID:0 lptbbi:001E9610
<00004000D007 8 R TB_GETBUTTONINF OW iIndex:False
<00005000D007 8 S TB_GETBUTTONINF OW iID:1 lptbbi:001E9610
<00006000D007 8 R TB_GETBUTTONINF OW iIndex:False
<00007000D007 8 S TB_GETBUTTONINF OW iID:2 lptbbi:001E9610
<00008000D007 8 R TB_GETBUTTONINF OW iIndex:False
<00009000D007 8 S TB_GETBUTTONINF OW iID:3 lptbbi:001E9610
<00010000D007 8 R TB_GETBUTTONINF OW iIndex:False
<00011000D007 8 S TB_GETBUTTONINF OW iID:4 lptbbi:001E9610
<00012000D007 8 R TB_GETBUTTONINF OW iIndex:False
*************** *************** *************** *************

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Here is the full code:
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using System;
using System.Collecti ons.Generic;
using System.Windows. Forms;
using System.Runtime. InteropServices ;
using System.Text;
using System.Componen tModel;
using System.Diagnost ics;
using System.Threadin g;

namespace CloseExe
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
IntPtr shelltraywnd = Win32Api.FindWi ndow(
"shell_traywnd" , null);
IntPtr traynotifywnd = Win32Api.FindWi ndowEx(
shelltraywnd, IntPtr.Zero, "traynotifywnd" , null);
IntPtr traysyspager = Win32Api.FindWi ndowEx(
traynotifywnd, IntPtr.Zero, "syspager", null);
IntPtr toolbarwindow32 = Win32Api.FindWi ndowEx(
traysyspager, IntPtr.Zero, "toolbarwindow3 2", null);

int buttoncount = (int)Win32Api.S endMessage(
new HandleRef(null, toolbarwindow32 ),
Win32Api.TB_BUT TONCOUNT,
IntPtr.Zero,
IntPtr.Zero);

Win32Api.TBBUTT ONINFO[] buttons =
new Win32Api.TBBUTT ONINFO[buttoncount];

for (int i = 0; i < buttoncount; i++)
{
Win32Api.TBBUTT ONINFO ti = new Win32Api.TBBUTT ONINFO();
ti.dwMask = Win32Api.TBIF_B YINDEX | Win32Api.TBIF_T EXT;
ti.cbSize = (uint)Marshal.S izeOf(ti);

Win32Api.SendMe ssage(
new HandleRef(null, toolbarwindow32 ),
Win32Api.TB_GET BUTTONINFO,
(IntPtr)i,
ref ti);

buttons[i] = ti;
}

}// Main
}

public static class Win32Api
{
public const int WM_USER = 0x0400;

//**Tried using WM_USER + 65 but gives error**
public const uint TB_GETBUTTONINF O = 0x043F;

public const uint TB_BUTTONCOUNT = WM_USER + 24;

public const int TBIF_IMAGE = 0x0001;
public const int TBIF_TEXT = 0x0002;
public const int TBIF_STATE = 0x0004;
public const int TBIF_STYLE = 0x0008;
public const int TBIF_LPARAM = 0x0010;
public const int TBIF_COMMAND = 0x0020;
public const int TBIF_SIZE = 0x0040;
public const uint TBIF_BYINDEX = 0x0000;

[StructLayout(La youtKind.Sequen tial)]
public struct TBBUTTONINFO
{
public uint cbSize;
public uint dwMask;
public int idCommand;
public int iImage;
public byte fsState;
public byte fsStyle;
public short cx;
public IntPtr lParam;
[MarshalAs(Unman agedType.LPTStr )]
public string lpszText;
public int cchText;
}

[DllImport("user 32.dll", CharSet =
CharSet.Auto, SetLastError = false)]
public static extern IntPtr SendMessage(
HandleRef hWnd,
uint Msg,
IntPtr wParam,
IntPtr lParam);

[DllImport("user 32.dll", SetLastError = true)]
public static extern IntPtr SendMessage(
HandleRef hWnd,
uint Msg,
IntPtr wParam,
ref TBBUTTONINFO lParam);
}
}