fling_boy (男孩) 请来，使用API函数改变分辨率。。。。
Option Explicit
Private Type RECT
Left As Long
Top As Long
Right As Long
Bottom As Long
End Type
Private Declare Function ChangeDisplaySettings Lib "user32" Alias "ChangeDisplaySettingsA" _
(lpDevMode As Any, ByVal dwflags As Long) As Long
Private Declare Function EnumDisplaySettings Lib "user32" Alias "EnumDisplaySettingsA" _
(ByVal lpszDeviceName As String, ByVal iModeNum As Long, lpDevMode As Any) As Long
Private Declare Function SendMessageByLong& Lib "user32" Alias "SendMessageA" _
(ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long)
Private Declare Function InvalidateRect Lib "user32" (ByVal hwnd As Long, lprect As Any, _
ByVal bErase As Long) As Long
Private Declare Function PostMessage Lib "user32" Alias "PostMessageA" (ByVal hwnd As Long, _
ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Private Type DEVMODE
dmDeviceName As String * 32
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(1 To 32) As Byte
dmLogPixels As Integer
dmBitsPerPel As Long
dmPelsWidth As Long
dmPelsHeight As Long
dmDisplayFlags As Long
dmDisplayFrequency As Long
dmICMMethod As Long
'Windows 95 only
dmICMIntent As Long
' Windows 95 only
dmMediaType As Long
' Windows 95 only
dmDitherType As Long
' Windows 95 only
dmReserved1 As Long
' Windows 95 only
dmReserved2 As Long
' Windows 95 only
End Type
Const DM_BITSPERPEL = & H40000
Const DM_PELSWIDTH = & H80000
Const DM_PELSHEIGHT = & H100000
Const DM_DISPLAYFLAGS = & H200000
Const DM_DISPLAYFREQUENCY = & H400000
Const DISP_CHANGE_SUCCESSFUL = 0
Const DISP_CHANGE_RESTART = 1
Const DISP_CHANGE_FAILED = -1
Const DISP_CHANGE_BADMODE = -2
Const DISP_CHANGE_NOTUPDATED = -3
Const DISP_CHANGE_BADFLAGS = -4
Const DISP_CHANGE_BADPARAM = -5
Const CDS_UPDATEREGISTRY = 1
Const CDS_FORCE As Long = & H80000000
Const CDS_RESET = & H40000000
Const HWND_BROADCAST = & HFFFF&
Const WM_SYSCOLORCHANGE = & H15
Const WM_PALETTECHANGED = & H311
Const WM_DISPLAYCHANGE = & H7E
Const WM_SETTINGCHANGE = & H1A
Dim ModeCube(960) As DEVMODE
Dim lproc As Long
Sub LoadDisplayMode()
Dim i As Long
Dim l1 As Long
Dim astr As String
i = 0
'遍历所有的显示模式并在List1中显示出来
Do
ModeCube(i).dmFields = DM_BITSPERPEL Or DM_PELSWIDTH Or DM_PELSHEIGHT Or _
DM_DISPLAYFLAGS Or DM_DISPLAYFREQUENCY
ModeCube(i).dmSize = Len(ModeCube(i))
'获得显示模式并保存到数组中
l1 = EnumDisplaySettings(vbNullString, i, ModeCube(i))
If l1 Then
astr = Str$(ModeCube(i).dmPelsWidth) + "＊" + Trim$(Str$(ModeCube(i).dmPelsHeight)) + " "
Select Case ModeCube(i).dmBitsPerPel
Case 4
astr = astr + "16色" + "刷新频率" + Str(ModeCube(i).dmDisplayFrequency)
Case 8
astr = astr + "256色" + "刷新频率" + Str(ModeCube(i).dmDisplayFrequency)
Case 16
astr = astr + "16位高彩" + "刷新频率" + Str(ModeCube(i).dmDisplayFrequency)
Case 24
astr = astr + "24位真彩" + "刷新频率" + Str(ModeCube(i).dmDisplayFrequency)
Case Else
astr = astr + Str$(ModeCube(i).dmBitsPerPel)
End Select
i = i + 1
End If
List1.AddItem astr
Loop Until (l1 = False) '获得最后一个显示模式之后EnumDisplaySettings会返回False
End Sub
Private Sub Command1_Click()
Dim aDev As DEVMODE
Dim b, xxa, xxb, xxc, xxd As Long
If List1.ListIndex < 0 Then Exit Sub
aDev = ModeCube(List1.ListIndex)
'CDS_FORCE在Microsoft的开发文档中没有说明
b = ChangeDisplaySettings(aDev, CDS_FORCE)
'改变完显示模式设置之后向所有的窗口发送显示模式改变消息
xxc = SendMessageByLong(HWND_BROADCAST, WM_SYSCOLORCHANGE, 0& , 0& )
xxa = SendMessageByLong(HWND_BROADCAST, WM_PALETTECHANGED, Me.hwnd, 0& )
xxb = PostMessage(HWND_BROADCAST, WM_SYSCOLORCHANGE, 0& , 0& )
xxd = InvalidateRect(0& , ByVal 0, 1& )
End Sub
Private Sub Form_Load()
Command1.Caption = "使用API函数改变分辨率"
Command2.Caption = "使用QuickRes库"
LoadDisplayMode
End Sub
//来拿分
问题点数：40、回复次数：1Top
1 楼fling_boy（昨日重现）回复于 2002-03-08 08:58:30 得分 40
thank you:).Top
相关问题
关键词
得分解答快速导航
相关链接
广告也精彩
反馈
