泰国海鲜:VB设置屏幕分辨率

在公共模块之中：
Option Explicit

Public Const CCHFORMNAME = 32
Public Const CCHDEVICENAME = 32
Public Const DM_BITSPERPEL = &H40000
Public Const DM_PELSWIDTH = &H80000
Public Const DM_PELSHEIGHT = &H100000

Public Const CDS_UPDATEREGISTRY = 1
Public Const CDS_TEST = 2

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

Declare Function EnumDisplaySettings Lib "user32" Alias "EnumDisplaySettingsA" (ByVal lpszDeviceName As Long, ByVal iModeNum As Long, lpDevMode As Any) As Boolean
Declare Function ChangeDisplaySettings Lib "user32" Alias "ChangeDisplaySettingsA" (lpDevMode As Any, ByVal dwflags As Long) As Long

在frm模块当中：

Option Explicit

Dim nDisplay As Integer, devM() As DEVMODE

Private Sub Command1_Click()
devM(List1.ListIndex).dmFields = DM_PELSWIDTH Or DM_PELSHEIGHT Or DM_BITSPERPEL

If ChangeDisplaySettings(devM(List1.ListIndex), CDS_TEST) = 0 Then
MsgBox "测试成功!"
Else
MsgBox "测试失败!"
End If
End Sub

Private Sub Command2_Click()
devM(List1.ListIndex).dmFields = DM_PELSWIDTH Or DM_PELSHEIGHT Or DM_BITSPERPEL

If ChangeDisplaySettings(devM(List1.ListIndex), 0) = 0 Then
MsgBox "设定成功!"
Else
MsgBox "设定失败!"
End If
End Sub

Private Sub Form_Load()
Dim HasMore As Long, i As Integer

i = 0
Do
ReDim Preserve devM(0 To i)

HasMore = EnumDisplaySettings(0, i, devM(i))
If HasMore = 0 Then Exit Do
If devM(i).dmBitsPerPel = 24 Then
List1.AddItem "全彩" & vbTab & _
devM(i).dmPelsWidth & vbTab & devM(i).dmPelsHeight
Else
List1.AddItem 2 ^ devM(i).dmBitsPerPel & vbTab & _
devM(i).dmPelsWidth & vbTab & devM(i).dmPelsHeight
End If
i = i + 1
Loop
nDisplay = i
End Sub

这样就可以成功了。

我可以写一个delphi的，需要么