RE:Ayuda con resolucion Pantall
Yo utilizo este codigo en un sistema mio para verificar que la resolucion sea 1024x768
El codigo revisa primero si la resolucion es correcta, si no lo es, se revisa si la tarjeta y monitor la aceptan; si la aceptan te pregunta si desas cambiarla
Private Declare Function ChangeDisplaySettings Lib "user32" Alias "ChangeDisplaySettingsA" (lpDevMode As Any, ByVal dwFlags As Long) As Long
Private Declare Function EnumDisplaySettings Lib "user32" Alias "EnumDisplaySettingsA" (ByVal lpszDeviceName As Long, ByVal iModeNum As Long, lpDevMode As Any) As Boolean
Const CCDEVICENAME = 32
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 DevM As DEVMODE
Const DM_PELSWIDTH = &H80000
Const DM_PELSHEIGHT = &H100000
Private Function ChecaResolucion() As Boolean
Dim a As Boolean
Dim i&
i = 0
Do
DoEvents
a = EnumDisplaySettings(0&, i&, DevM)
i = i + 1
If DevM.dmPelsWidth >= 1024 Then
ChecaResolucion = True
Exit Function
End If
Loop Until (a = False)
End Function
Private Sub Form_Load()
ancho = (Screen.Width \ Screen.TwipsPerPixelX)
If ancho < 1024 Then
If ChecaResolucion = True Then
If MsgBox("La Resolucion actual no permite ver el desempeño completo del Sistema. Se recomienda aumentarla. Desea que se aumente ahora ?", vbYesNo + vbQuestion) = vbYes Then
Dim Bu
DevM.dmFields = DM_PELSWIDTH Or DM_PELSHEIGHT
DevM.dmPelsWidth = 1024
DevM.dmPelsHeight = 768
Bu = ChangeDisplaySettings(DevM, 0)
Else
MsgBox "La Resolucion actual no permite ver el desempeño completo del Sistema. El Sistema debe cerrarse ahora", vbOKOnly + vbExclamation
End
End If
Else
MsgBox "La Resolucion actual no permite ver el desempeño completo del Sistema y al parecer el Monitor no los acepta. El Sistema debe cerrarse ahora", vbOKOnly + vbExclamation
End
End If
End If
End Sub