'Declaration
 
Private Delegate Function MessageBoxManager.HookProc( _
   ByVal nCode As Integer, _
   ByVal wParam As IntPtr, _
   ByVal lParam As IntPtr _
) As IntPtr

'Usage
 
Dim instance As New MessageBoxManager.HookProc(AddressOf HandlerMethod)

private delegate IntPtr MessageBoxManager.HookProc( 
   int nCode,
   IntPtr wParam,
   IntPtr lParam
)

private delegate IntPtr MessageBoxManager.HookProc( 
   int nCode,
   IntPtr wParam,
   IntPtr lParam
)

Parameters

nCode

wParam

lParam

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

MessageBoxManager.HookProc Members
System.Windows.Forms Namespace