internal static extern bool PlaySound([In]string soundName, IntPtr hmod, SafeNativeMethods.PlaySoundFlags soundFlags);
internal static bool GetGUIThreadInfo(int idThread, ref SafeNativeMethods.GUITHREADINFO guiThreadInfo)
{
guiThreadInfo.cbSize = Marshal.SizeOf(guiThreadInfo);
bool result = SafeNativeMethods.GetGUIThreadInfo(0, ref guiThreadInfo);
int lastWin32Error = Marshal.GetLastWin32Error();
if (!result)
{
// If the focused thread is on another [secure] desktop, GetGUIThreadInfo
// will fail with ERROR_ACCESS_DENIED - don't throw an exception for that case,
// instead treat as a failure. Callers will treat this as though no window has
// focus.
if (lastWin32Error == 5 /*ERROR_ACCESS_DENIED*/)
return false;
ThrowWin32ExceptionsIfError(lastWin32Error);
}
return result;
}