How to detect if autohidden taskbar is visible or not?

Question

At the moment I need to detect in C++/Qt if a taskbar, which is set to \"autohide\" is visible on the screen or not. I have tried already following solution, unfortunately w

Answer 1

HWND hTaskbarWnd = FindWindow("Shell_TrayWnd", null);
bool isVisible = IsWindowVisible(hTaskbarWnd);

or

bool IsTaskbarWndVisible() {
HWND hTaskbarWnd = FindWindow("Shell_TrayWnd", null);
HMONITOR hMonitor = MonitorFromWindow(hTaskbarWnd , MONITOR_DEFAULTTONEAREST);
MONITORINFO info = { sizeof(MONITORINFO) };
if (GetMonitorInfo(hMonitor, &info))
{
  RECT rect;
  GetWindowRect(hTaskbarWnd , &rect);
  if ((rect.top >= info.rcMonitor.bottom - 4) ||
      (rect.right <= 2) ||
      (rect.bottom <= 4) ||
      (rect.left >= info.rcMonitor.right - 2))
  return false;

  return true;
}