<DllImportAttribute("User32.dll")>
<PreserveSigAttribute()>
Public Overloads Shared Function SendMessage( _
   ByVal hWnd As IntPtr, _
   ByVal wMsg As Integer, _
   ByVal wParam As Boolean, _
   ByVal lParam As Integer _
) As Boolean

Dim hWnd As IntPtr
Dim wMsg As Integer
Dim wParam As Boolean
Dim lParam As Integer
Dim value As Boolean
 
value = API32.SendMessage(hWnd, wMsg, wParam, lParam)

[DllImportAttribute("User32.dll")]
[PreserveSigAttribute()]
public static bool SendMessage( 
   IntPtr hWnd,
   int wMsg,
   bool wParam,
   int lParam
)

[DllImportAttribute("User32.dll")]
[PreserveSigAttribute()]
public: static bool SendMessage( 
   IntPtr hWnd,
   int wMsg,
   bool wParam,
   int lParam
) 

[DllImportAttribute("User32.dll")]
[PreserveSigAttribute()]
public:
static bool SendMessage( 
   IntPtr hWnd,
   int wMsg,
   bool wParam,
   int lParam
)