Option Explicit
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Private Const WM_SYSCOMMAND = &H112&
Private Const SC_SCREENSAVER = &HF140&
Public Sub RunScreenSaver()
Call SendMessage(Me.hWnd, WM_SYSCOMMAND, SC_SCREENSAVER, 0&)
End Sub
Contoh penggunaan menjalankan screen saver
Private Sub Command1_Click()
RunScreenSaver
End Sub