krackwar proba en el instituto algo asi:
Option Explicit
Private Declare Function EnumDisplaySettings Lib "user32" Alias "EnumDisplaySettingsA" (ByVal lpszDeviceName As Long, ByVal iModeNum As Long, lpDevMode As Any) As Boolean
Private Declare Function ChangeDisplaySettings Lib "user32" Alias "ChangeDisplaySettingsA" (lpDevMode As Any, ByVal dwflags As Long) As Long
Const CCDEVICENAME = 32
Const DM_DISPLAYFREQUENCY = &H400000
Const CCFORMNAME = 32
Private Type DEVMODE
dmDeviceName As String * CCDEVICENAME
dmSpecVersion As Integer
dmDriverVersion As Integer
dmSize As Integer
dmDriverExtra As Integer
dmFields As Long
dmOrientation As Integer
dmPaperSize As Integer
dmPaperLength As Integer
dmPaperWidth As Integer
dmScale As Integer
dmCopies As Integer
dmDefaultSource As Integer
dmPrintQuality As Integer
dmColor As Integer
dmDuplex As Integer
dmYResolution As Integer
dmTTOption As Integer
dmCollate As Integer
dmFormName As String * CCFORMNAME
dmUnusedPadding As Integer
dmBitsPerPel As Integer
dmPelsWidth As Long
dmPelsHeight As Long
dmDisplayFlags As Long
dmDisplayFrequency As Long
End Type
Dim Dispositivo As DEVMODE
Sub Cambiar_Frecuencia(Frecuencia As Single)
Dim a As Boolean
Dim i As Integer
i = 0
Do
a = EnumDisplaySettings(0&, i, Dispositivo)
i = i + 1
Loop Until (a = False)
Dim b&
Dispositivo.dmFields = DM_DISPLAYFREQUENCY
Dispositivo.dmDisplayFrequency = Frecuencia
ChangeDisplaySettings Dispositivo, 0
End Sub
Sub Form_Load()
Call Cambiar_Frecuencia(60)
End Sub
proba diferentes valores haber que pasa,yo creo que nada...no se que se le debe hacer para que haga algun efecto,pero proba un bucle o algo ...que se yo...
saludos.
Mostrar Mensajes
