private static IEnumerable <NotificationIcon> FindProcessInSystray()
{
IntPtr systemTrayHandle = GetSystemTrayHandle();
uint trayIconCount = User32.SendMessage(systemTrayHandle, Toolbar.BUTTONCOUNT, 0, 0);
var result = new List <NotificationIcon>();
for (int trayIconIndex = 0; trayIconIndex < trayIconCount; trayIconIndex++)
{
var tbButton = new TrayIcon();
string text = string.Empty;
IntPtr ipWindowHandle = IntPtr.Zero;
uint pid = 0;
bool b = GetTrayIcon(systemTrayHandle, trayIconIndex, ref tbButton, ref text, ref ipWindowHandle, ref pid);
if (b && tbButton.dwData != 0)
{
result.Add(new NotificationIcon(text, (int)pid, Process.GetProcessById((int)pid).ProcessName));
}
}
return(result);
}
private static unsafe bool GetTrayIcon(IntPtr hToolbar, int i, ref TrayIcon trayIcon, ref string text,
ref IntPtr ipWindowHandle, ref uint pid)
{
const int bufferSize = 0x1000;
var localBuffer = new byte[bufferSize];
User32.GetWindowThreadProcessId(hToolbar, out uint explorerProcessId);
IntPtr hProcess = Kernel32.OpenProcess(ProcessRights.ALL_ACCESS, false, explorerProcessId);
if (hProcess == IntPtr.Zero)
{
Debug.Assert(false);
}
IntPtr ipRemoteBuffer = Kernel32.VirtualAllocEx(hProcess, IntPtr.Zero, new UIntPtr(bufferSize),
MemAllocationType.COMMIT, MemoryProtection.PAGE_READWRITE);
if (ipRemoteBuffer == IntPtr.Zero)
{
Debug.Assert(false);
}
fixed(TrayIcon *trayIconPointer = &trayIcon)
{
var trayIconPointer2 = new IntPtr(trayIconPointer);
int b = (int)User32.SendMessage(hToolbar, Toolbar.GETBUTTON, (IntPtr)i, ipRemoteBuffer);
if (b == 0)
{
Debug.Assert(false);
}
int dwBytesRead = 0;
var ipBytesRead = new IntPtr(&dwBytesRead);
bool b2 = Kernel32.ReadProcessMemory(hProcess, ipRemoteBuffer, trayIconPointer2,
new UIntPtr((uint)sizeof(TrayIcon)),
ipBytesRead);
if (!b2)
{
Debug.Assert(false);
}
}
// button text
fixed(byte *pLocalBuffer = localBuffer)
{
var ipLocalBuffer = new IntPtr(pLocalBuffer);
int chars = (int)User32.SendMessage(hToolbar, Toolbar.GETBUTTONTEXTW, (IntPtr)trayIcon.idCommand, ipRemoteBuffer);
if (chars == -1)
{
Debug.Assert(false);
}
int dwBytesRead = 0;
var ipBytesRead = new IntPtr(&dwBytesRead);
bool b4 = Kernel32.ReadProcessMemory(hProcess, ipRemoteBuffer, ipLocalBuffer, new UIntPtr(bufferSize), ipBytesRead);
if (!b4)
{
Debug.Assert(false);
}
text = Marshal.PtrToStringUni(ipLocalBuffer, chars);
if (text == " ")
{
text = string.Empty;
}
}
fixed(byte *pLocalBuffer = localBuffer)
{
var ipLocalBuffer = new IntPtr(pLocalBuffer);
var ipRemoteData = new IntPtr((long)trayIcon.dwData);
int dwBytesRead = 0;
var ipBytesRead = new IntPtr(&dwBytesRead);
bool b4 = Kernel32.ReadProcessMemory(
hProcess,
ipRemoteData,
ipLocalBuffer,
new UIntPtr(4),
ipBytesRead);
if (!b4 || dwBytesRead != 4)
{
Debug.Assert(false);
}
int iWindowHandle = BitConverter.ToInt32(localBuffer, 0);
if (iWindowHandle == -1)
{
Debug.Assert(false);
}
ipWindowHandle = new IntPtr(iWindowHandle);
User32.GetWindowThreadProcessId(ipWindowHandle, out pid);
}
Kernel32.VirtualFreeEx(hProcess, ipRemoteBuffer, UIntPtr.Zero, MemAllocationType.RELEASE);
Kernel32.CloseHandle(hProcess);
return(true);
}
