Повернуть дисплей монитора на 180 градусов

Const DMDO_90 = 1
Const DMDO_180 = 2
Const DMDO_270 = 4
Const ENUM_CURRENT_SETTINGS = -1
Const CCFORMNAME = 32
Const CCDEVICENAME = 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
 
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
Dim OldX As Long, OldY As Long, nDC As Long
Dim DevM As DEVMODE, erg As Long, temp As Long
Private Sub Command1_Click()
DevM.dmSize = Len(DevM)
DevM.dmDriverExtra = 0
erg = EnumDisplaySettings(0&, ENUM_CURRENT_SETTINGS, DevM)
DevM.dmOrientation = DMDO_90
temp = DevM.dmPelsHeight
DevM.dmPelsHeight = DevM.dmPelsWidth
DevM.dmPelsWidth = temp
ret = ChangeDisplaySettings(DevM, 0)
MsgBox ret ' у меня  = -2    Указанный графический режим не поддерживается
End Sub

'Функция возвращает следующие значения:
'Значение                                   Описание
'DISP_CHANGE_SUCCESSFUL = 0  Параметры настройки экрана были успешно изменены
'DISP_CHANGE_RESTART = 1     Компьютер нужно перезагрузить, чтобы изменения вступили в силу
'DISP_CHANGE_BADFLAGS = -4   Определен недействительный набор флажков
'DISP_CHANGE_BADPARAM = -5   Определен недопустимый параметр
'DISP_CHANGE_FAILED = -1     Драйвер дисплея не поддерживает указанный графический режим
'DISP_CHANGE_BADMODE = -2    Указанный графический режим не поддерживается
'DISP_CHANGE_NOTUPDATED = -3     Windows NT/2000: Настройки не могут быть записаны в реестр
'

'temp = DevM.dmPelsHeight
'DevM.dmPelsHeight = DevM.dmPelsWidth
'DevM.dmPelsWidth = temp

DevM.dmOrientation = DMDO_180