private static extern bool ReadProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, ref TBBUTTONINFOW lpBuffer, IntPtr nSize, out IntPtr lpNumberOfBytesRead);
public static List <string> ScanToolbarButtons()
{
List <string> tooltips = new List <string>();
var handle = GetSystemTrayHandle();
if (handle == IntPtr.Zero)
{
return(null);
}
var count = SendMessage(handle, TB_BUTTONCOUNT, IntPtr.Zero, IntPtr.Zero).ToInt32();
if (count == 0)
{
return(null);
}
GetWindowThreadProcessId(handle, out var pid);
var hProcess = OpenProcess(PROCESS_ALL_ACCESS, false, pid);
if (hProcess == IntPtr.Zero)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
var size = (IntPtr)Marshal.SizeOf <TBBUTTONINFOW>();
var buffer = VirtualAllocEx(hProcess, IntPtr.Zero, size, MEM_COMMIT, PAGE_READWRITE);
if (buffer == IntPtr.Zero)
{
CloseHandle(hProcess);
throw new Win32Exception(Marshal.GetLastWin32Error());
}
for (int i = 0; i < count; i++)
{
var btn = new TBBUTTONINFOW();
btn.cbSize = size.ToInt32();
btn.dwMask = TBIF_BYINDEX | TBIF_COMMAND;
if (WriteProcessMemory(hProcess, buffer, ref btn, size, out var written))
{
// we want the identifier
var res = SendMessage(handle, TB_GETBUTTONINFOW, (IntPtr)i, buffer);
if (res.ToInt32() >= 0)
{
if (ReadProcessMemory(hProcess, buffer, ref btn, size, out var read))
{
// now get display text using the identifier
// first pass we ask for size
var textSize = SendMessage(handle, TB_GETBUTTONTEXTW, (IntPtr)btn.idCommand, IntPtr.Zero);
if (textSize.ToInt32() != -1)
{
// we need to allocate for the terminating zero and unicode
var utextSize = (IntPtr)((1 + textSize.ToInt32()) * 2);
var textBuffer = VirtualAllocEx(hProcess, IntPtr.Zero, utextSize, MEM_COMMIT, PAGE_READWRITE);
if (textBuffer != IntPtr.Zero)
{
res = SendMessage(handle, TB_GETBUTTONTEXTW, (IntPtr)btn.idCommand, textBuffer);
if (res == textSize)
{
var localBuffer = Marshal.AllocHGlobal(utextSize.ToInt32());
if (ReadProcessMemory(hProcess, textBuffer, localBuffer, utextSize, out read))
{
var text = Marshal.PtrToStringUni(localBuffer);
tooltips.Add(text);
}
Marshal.FreeHGlobal(localBuffer);
}
VirtualFreeEx(hProcess, textBuffer, IntPtr.Zero, MEM_RELEASE);
}
}
}
}
}
}
VirtualFreeEx(hProcess, buffer, IntPtr.Zero, MEM_RELEASE);
CloseHandle(hProcess);
return(tooltips);
}
