Message Queues (Windows)

http://msdn.microsoft.com/en-us/library/windows/desktop/ms644927(v=vs.85).aspx

 

categories.

Prefix	Message category	Documentation
ABM and ABN	Application desktop toolbar	Shell Messages and Notifications
ACM and ACN	Animation control	Animation Control Messages and Animation Control Notifications
BCM, BCN, BM, and BN	Button control	Button Control Messages and Button Control Notifications
CB and CBN	ComboBox control	ComboBox Control Messages and ComboBox Control Notifications
CBEM and CBEN	ComboBoxEx control	ComboBoxEx Messages and ComboBoxEx Notifications
CCM	General control	Control Messages
CDM	Common dialog box	Common Dialog Box Messages
DFM	Default context menu	Shell Messages and Notifications
DL	Drag list box	Drag List Box Notifications
DM	Default push button control	Dialog Box Messages
DTM and DTN	Date and time picker control	Date and Time Picker Messages and Date and Time Picker Notifications
EM and EN	Edit control	Edit Control Messages, Edit Control Notifications, Rich Edit Messages, and Rich Edit Notifications
HDM and HDN	Header control	Header Control Messages and Header Control Notifications
HKM	Hot key control	Hot Key Control Messages
IPM and IPN	IP address control	IP Address Messages and IP Address Notifications
LB and LBN	List box control	List Box Messages and List Box Notifications
LM	SysLink control	SysLink Control Messages
LVM and LVN	List view control	List View Messages and List View Notifications
MCM and MCN	Month calendar control	Month Calendar Messages and Month Calendar Notifications
PBM	Progress bar	Progress Bar Messages
PGM and PGN	Pager control	Pager Control Messages and Pager Control Notifications
PSM and PSN	Property sheet	Property Sheet Messages and Property Sheet Notifications
RB and RBN	Rebar control	Rebar Control Messages and Rebar Control Notifications
SB and SBN	Status bar window	Status Bar Messages and Status Bar Notifications
SBM	Scroll bar control	Scroll Bar Messages
SMC	Shell menu	Shell Messages and Notifications
STM and STN	Static control	Static Control Messages and Static Control Notifications
TB and TBN	Toolbar	Toolbar Control Messages and Toolbar Control Notifications
TBM and TRBN	Trackbar control	Trackbar Control Messages and Trackbar Control Notifications
TCM and TCN	Tab control	Tab Control Messages and Tab Control Notifications
TDM and TDN	Task dialog	Task Dialog Messages and Task Dialog Notifications
TTM and TTN	Tooltip control	Tooltip Control Messages and Tooltip Control Notifications
TVM and TVN	Tree-view control	Tree View Messages and Tree View Notifications
UDM and UDN	Up-down control	Up-Down Messages and Up-Down Notifications
WM	General	Clipboard Messages Clipboard Notifications Common Dialog Box Notifications Cursor Notifications Data Copy Message Desktop Window Manager Messages Device Management Messages Dialog Box Notifications Dynamic Data Exchange Messages Dynamic Data Exchange Notifications Hook Notifications Keyboard Accelerator Messages Keyboard Accelerator Notifications Keyboard Input Messages Keyboard Input Notifications Menu Notifications Mouse Input Notifications Multiple Document Interface Messages Raw Input Notifications Scroll Bar Notifications Timer Notifications Window Messages Window Notifications