- 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
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