WinLib.MessageMonitor.WindowMessage

#WinLib.MessageMonitor.WindowMessage

##Event Signature Event Function WindowMessage(HWND As WindowRef, Message As Integer, WParam As Ptr, LParam As Ptr) As Boolean

##Parameters

Name	Type	Comment
HWND	Integer	A handle to the window
Message	Integer	The Window Message ID. Either a system constant or registered window message.
WParam	Ptr	Varies depending on the specific Message ID number; may be Nil.
LParam	Ptr	Varies depending on the specific Message ID number; may be Nil.

##Return Value Return True if you handled the message and neither Windows nor the runtime should attempt default processing.

##Notes This event is raised by the WndProc method.

Raised for every window message matching any message ID added to the filter using AddMessageFilter and not subsequently removed with RemoveMessageFilter

##See also

• WndProc
• DefWindowProc