public SystemForegroundTitleListener()
{
_HandleSystemForegroundEvent = HandleSystemForegroundEvent;
_HandleObjectNamechangeEvent = HandleObjectNamechangeEvent;
Refs.Set(ref hFocusedApplicationEvent,
SetWinEventHook(Api.EVENT_SYSTEM_FOREGROUND, _HandleSystemForegroundEvent));
}
private SingleFileRowWriter EnsureOpenedLogFile(string fileName)
{
if (writer == null || writer.OpenedFile != fileName)
{
Refs.Set(ref writer, OpenLogFile(fileName));
}
return(writer);
}
private void HandleSystemForegroundEvent(IntPtr hWinEventHook, uint eventType, IntPtr hwnd, int idObject, int idChild, uint dwEventThread, uint dwmsEventTime)
{
if (hwnd == previousHwnd)
{
return;
}
var threadId = Api.GetWindowThreadProcessId(hwnd, out var processId);
Refs.Set(ref hWindowTitleChangeEvent,
SetWinEventHook(Api.EVENT_OBJECT_NAMECHANGE, processId, threadId, _HandleObjectNamechangeEvent));
previousHwnd = hwnd;
FireForegroundTitleProbablyChanged();
}