Changer la resolution de windows


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Comment changer la résolution de Windows ?

Mettez ce code dans un Module :

Source / Exemple : 


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
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long

Private Const CCHDEVICENAME = 32
Private Const CCHFORMNAME = 32
Private Const DM_WIDTH = &H80000
Private Const DM_HEIGHT = &H100000
Private Const WM_DEVMODECHANGE = &H1B
Private Const HWND_BROADCAST = &HFFFF&
Private Const HWND_DESKTOP = 0

Private Type DEVMODE
    dmDeviceName As String * CCHDEVICENAME
    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 * CCHFORMNAME
    dmUnusedPadding As Integer
    dmBitsPerPel As Integer
    dmPelsWidth As Long
    dmPelsHeight As Long
    dmDisplayFlags As Long
    dmDisplayFrequency As Long
End Type

Dim dmEcran As DEVMODE

Private Sub ResolutionEcran(sgWidth As Single, sgHeight As Single)
    Dim blTMP As Boolean
    Dim lgTMP As Long
    lgTMP = 0
    Do
        blTMP = EnumDisplaySettings(0, lgTMP, dmEcran)
        lgTMP = lgTMP + 1
    Loop Until Not blTMP
    dmEcran.dmFields = DM_WIDTH Or DM_HEIGHT
    dmEcran.dmPelsWidth = sgWidth
    dmEcran.dmPelsHeight = sgHeight
    lgTMP = ChangeDisplaySettings(dmEcran, 0)
    Call SendMessage(HWND_BROADCAST, WM_DEVMODECHANGE, 0, 0)
End Sub

' Ensuite dans un pour changer la résolution :

Call ResolutionEcran(640, 480)

' Votre affichage passera en 640x480

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