BOOL DoStartStartupItems(ITrayWindow *Tray)
{
DWORD dwWait;
if (!bExplorerIsShell)
return FALSE;
if (!s_hStartupMutex)
{
// Accidentally, there is possibility that the system starts multiple Explorers
// before startup of shell. We use a mutex to match the timing of shell initialization.
s_hStartupMutex = CreateMutexW(NULL, FALSE, L"ExplorerIsShellMutex");
if (s_hStartupMutex == NULL)
return FALSE;
}
dwWait = WaitForSingleObject(s_hStartupMutex, INFINITE);
TRACE("dwWait: 0x%08lX\n", dwWait);
if (dwWait != WAIT_OBJECT_0)
{
TRACE("LastError: %ld\n", GetLastError());
DoFinishStartupItems();
return FALSE;
}
const DWORD dwWaitTotal = 3000; // in milliseconds
DWORD dwTick = GetTickCount();
while (GetShellWindow() == NULL && GetTickCount() - dwTick < dwWaitTotal)
{
TrayProcessMessages(Tray);
}
if (GetShellWindow() == NULL)
{
DoFinishStartupItems();
return FALSE;
}
// Check the volatile "StartupHasBeenRun" key
HKEY hSessionKey, hKey;
HRESULT hr = SHCreateSessionKey(KEY_WRITE, &hSessionKey);
if (SUCCEEDED(hr))
{
ASSERT(hSessionKey);
DWORD dwDisp;
LONG Error = RegCreateKeyExW(hSessionKey, L"StartupHasBeenRun", 0, NULL,
REG_OPTION_VOLATILE, KEY_WRITE, NULL, &hKey, &dwDisp);
RegCloseKey(hSessionKey);
RegCloseKey(hKey);
if (Error == ERROR_SUCCESS && dwDisp == REG_OPENED_EXISTING_KEY)
{
return FALSE; // Startup programs has already been run
}
}
return TRUE;
}
HANDLE
DesktopCreateWindow(IN OUT ITrayWindow *Tray)
{
HANDLE hThread;
HANDLE hEvent;
DWORD DesktopThreadId;
HANDLE hDesktop = NULL;
HANDLE Handles[2];
DWORD WaitResult;
hEvent = CreateEvent(NULL,
FALSE,
FALSE,
NULL);
if (hEvent != NULL)
{
volatile DESKCREATEINFO DeskCreateInfo;
DeskCreateInfo.hEvent = hEvent;
DeskCreateInfo.Tray = Tray;
DeskCreateInfo.hDesktop = NULL;
hThread = CreateThread(NULL,
0,
DesktopThreadProc,
(PVOID)&DeskCreateInfo,
0,
&DesktopThreadId);
if (hThread != NULL)
{
Handles[0] = hThread;
Handles[1] = hEvent;
for (;;)
{
WaitResult = MsgWaitForMultipleObjects(sizeof(Handles) / sizeof(Handles[0]),
Handles,
FALSE,
INFINITE,
QS_ALLEVENTS);
if (WaitResult == WAIT_OBJECT_0 + (sizeof(Handles) / sizeof(Handles[0])))
TrayProcessMessages(Tray);
else if (WaitResult != WAIT_FAILED && WaitResult != WAIT_OBJECT_0)
{
hDesktop = DeskCreateInfo.hDesktop;
break;
}
}
CloseHandle(hThread);
}
CloseHandle(hEvent);
}
return hDesktop;
}
