Averigua sobre el api mouse event, abajo te dejo un ejemplo que arme usando la ApiGuide.
Código
'DECLARACION DEL API Declare Sub mouse_event Lib "user32" Alias "mouse_event" (ByVal dwFlags As Long, ByVal dx As Long, ByVal dy As Long, ByVal cButtons As Long, ByVal dwExtraInfo As Long) 'Declare Sub mouse_event Lib "user32" Alias "mouse_event" (ACCION , X , Y , ByVal cButtons As Long, ByVal dwExtraInfo As Long) ' ARRIBA DESCRIPCION DE LO QUE NECESITAS ' ABAJO ACCIONES Const MOUSEEVENTF_LEFTDOWN = &H2 Const MOUSEEVENTF_LEFTUP = &H4 Const MOUSEEVENTF_MIDDLEDOWN = &H20 Const MOUSEEVENTF_MIDDLEUP = &H40 Const MOUSEEVENTF_MOVE = &H1 Const MOUSEEVENTF_ABSOLUTE = &H8000 Const MOUSEEVENTF_RIGHTDOWN = &H8 Const MOUSEEVENTF_RIGHTUP = &H10 'EJEMPLO Private sub form_load() 'Click en X = variable "x", Y = variable "y" mouse_event MOUSEEVENTF_LEFTDOWN, x, y, 0, 0 mouse_event MOUSEEVENTF_LEFTUP, x, y, 0, 0 End Sub
GRACIAS POR LEER!!!