hab (HAB) - input
idContext (LONG) - input
MCHK_CLASSMSGINTEREST
hwnd (HWND) - input
This is the same as the window handle in the hwnd parameter of the WinSetMsgInterest function.
pszClassName (PSZ) - input
This is the same as the window class name in the pszClassName parameter of the WinSetClassMsgInterest function.
usMsgClass (ULONG) - input
This is the same as the message class in the ulMsgClass parameter of the WinSetMsgInterest and the WinSetClassMsgInterest functions.
idControl (LONG) - input
The setting varies with the value of the idContext parameter.
For MCHK_CLASSMSGINTEREST, it can be SMI_INTEREST, or SMI_NOINTEREST, or SMI_AUTODISPATCH.
For MCHK_MSGINTEREST, it can be SMI_INTEREST, or SMI_NOINTEREST, or SMI_RESET, or SMI_AUTODISPATCH.
For MCHK_MSGMODE, it can be SMD_DELAYED or SMD_IMMEDIATE.
For MCHK_SYNCHRONISATION, it can be SSM_SYNCHRONOUS, or SSM_ASYNCHRONOUS, or SSM_MIXED.
fSuccess (PBOOL) - in/out
TRUE
rc (BOOL) - returns
TRUE