Question

VB 屏幕分辨率 有加分!

需要在form4被激活的时候改成1024*768
Form_Unload(Cancel As Integer)里面再改回来
最好是可以直接复制的
先谢过了

有加分!
怎么获得原来的分辨率呀？
不一定是800*600呀?

Answer 1

'设置显示器分辨率
Private Declare Function EnumDisplaySettings Lib "user32" Alias "EnumDisplaySettingsA" (ByVal lpszDeviceName As Long, ByVal iModeNum As Long, lpDevMode As Any) As Long
Private Declare Function ChangeDisplaySettings Lib "user32" Alias "ChangeDisplaySettingsA" (lpDevMode As Any, ByVal dwFlags As Long) As Long
Const CCDEVICENAME = 32
Const CCFORMNAME = 32
Const DM_PELSWIDTH = &H80000
Const DM_PELSHEIGHT = &H100000

Const ENUM_CURRENT_SETTINGS = -1

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

Private Sub Form_Load()
EnumDisplaySettings 0, 0, DevM
DevM.dmFields = DM_PELSWIDTH Or DM_PELSHEIGHT
DevM.dmPelsWidth = 1024 '设定成想要的分辨率
DevM.dmPelsHeight = 768
ChangeDisplaySettings DevM, 0
End Sub

Private Sub Form_Unload(Cancel As Integer)
EnumDisplaySettings 0, 0, DevM
DevM.dmFields = DM_PELSWIDTH Or DM_PELSHEIGHT
DevM.dmPelsWidth = 800 '设回原分辨率
DevM.dmPelsHeight = 600
ChangeDisplaySettings DevM, 0
End Sub

'获取分辨率

Private Sub Command1_Click()
EnumDisplaySettings 0, ENUM_CURRENT_SETTINGS, DevM
Print DevM.dmPelsWidth & "×" & DevM.dmPelsHeight
End Sub