WinSetClassMsgInterest - Parameters
hab (HAB) - input
pszClassName (PSZ) - input
ulMsgClass (ULONG) - input
Message class to have interest level set.
msgid
A single message identity (for example, WM_SHOW).
SMIM_ALL
All messages (except for WM_QUIT
if lControl is SMI_AUTODISPATCH or SMI_NOINTEREST).
lControl (LONG) - input
Interest identifier for the message class.
SMI_INTEREST
Interested in the message, or messages
SMI_NOINTEREST
Not interested in the message,
or messages
SMI_AUTODISPATCH
Interested in the message
or messages, but they are to be automatically dispatched to the window procedure.
rc (BOOL) - returns