This method prototype is used internally when you refer to ULGetNotification and #define the UNICODE macro on Win32 platforms.
Typically, you would not reference this method directly when creating an UltraLite application.
This call blocks until a notification is received or until the given wait period expires. To wait indefinitely, pass UL_READ_WAIT_INFINITE
for wait_ms. To cancel a wait, send another notification to the given queue or use CancelGetNotification(). After reading
a notification, use GetNotificationParameter() to retrieve additional parameters by name.