setdiap.bas

Windows API函数,希望大伙有用哦

Attribute VB_Name = "SetDisp"
Option Explicit
Const CCDEVICENAME = 32
Const CCFORMNAME = 32
Const DM_PELSWIDTH = &H80000
Const DM_PELSHEIGHT = &H100000
Const CDS_TEST = &H4
Private Type DISPLAY_DEVICE
    cb As Long
    DeviceName As String * 32
    DeviceString As String * 128
    StateFlags As Long
    DeviceID As String * 128
    DeviceKey  As String * 128
End Type
Private Type DEVMODE
    dmDeviceName As String * CCDEVICENAME
    dmSpecVersion As Integer
    dmDriverVersion As Integer
    dmSize 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
    dmPanningWidth As Long
    dmPanningHeight As Long
End Type
Declare Function ChangeDisplaySettingsEx Lib "user32" Alias "ChangeDisplaySettingsExA" (lpszDeviceName As Any, lpDevMode As Any, ByVal hWnd As Long, ByVal dwFlags As Long, lParam As Any) As Long
    Dim OldX As Long, OldY As Long
    Dim DD As DISPLAY_DEVICE, DevM As DEVMODE
Public Function SetDisplay(ByVal X As Long, ByVal Y As Long)
    DD.cb = Len(DD)
    OldX = Screen.Width / Screen.TwipsPerPixelX
    OldY = Screen.Height / Screen.TwipsPerPixelY
    DevM.dmSize = Len(DevM)
    DevM.dmFields = DM_PELSWIDTH Or DM_PELSHEIGHT
    DevM.dmPelsWidth = X
    DevM.dmPelsHeight = Y
    ChangeDisplaySettingsEx ByVal 0&, DevM, ByVal 0&, CDS_TEST, ByVal 0&
End Function
Public Function ReSetDisPlay()
    DevM.dmPelsWidth = OldX
    DevM.dmPelsHeight = OldY
    ChangeDisplaySettingsEx ByVal 0&, DevM, ByVal 0&, CDS_TEST, ByVal 0&
End Function