.NET开发

本类阅读TOP10

·NHibernate快速指南(翻译)
·vs.net 2005中文版下载地址收藏
·【小技巧】一个判断session是否过期的小技巧
·VB/ASP 调用 SQL Server 的存储过程
·?dos下编译.net程序找不到csc.exe文件
·通过Web Services上传和下载文件
·学习笔记(补)《.NET框架程序设计(修订版)》--目录
·VB.NET实现DirectDraw9 (2) 动画
·VB.NET实现DirectDraw9 (1) 托管的DDraw
·建站框架规范书之——文件命名

分类导航
VC语言Delphi
VB语言ASP
PerlJava
Script数据库
其他语言游戏开发
文件格式网站制作
软件工程.NET开发
设置屏幕分辨率、颜色位数、刷新率

作者:未知 来源:月光软件站 加入时间:2005-6-5 月光软件站

'////////////////////////////////
'//
'//griefforyou收集整理
'//
'////////////////////////////////
Private Declare Function GetDeviceCaps Lib "gdi32" (ByVal hdc As Long, ByVal nIndex As Long) As Long
Private Declare Function ChangeDisplaySettings Lib "user32" Alias "ChangeDisplaySettingsA" (lpDevMode As Any, ByVal dwflags As Long) As Long

Private Const CCDEVICENAME As Long = 32
Private Const CCFORMNAME As Long = 32

Private Const DM_BITSPERPEL As Long = &H40000
Private Const DM_PELSWIDTH As Long = &H80000
Private Const DM_PELSHEIGHT As Long = &H100000
Private Const DM_DISPLAYFLAGS As Long = &H200000
Private Const DM_DISPLAYFREQUENCY = &H400000

Private Const CDS_FORCE As Long = &H80000000

Private Const BITSPIXEL As Long = 12
Private Const HORZRES As Long = 8
Private Const VERTRES As Long = 10
Private Const VREFRESH = 116

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 Sub cmdChangeDesktopMode_Click()

    Dim DM As DEVMODE
        
    With DM
       .dmPelsWidth = CInt(txtNewWidth.Text)
       .dmPelsHeight = CInt(txtNewHeight.Text)
       .dmBitsPerPel = CInt(txtNewColor.Text)
       .dmDisplayFrequency = CInt(txtNewFreq.Text)
       .dmFields = DM_PELSWIDTH Or DM_PELSHEIGHT Or DM_BITSPERPEL Or DM_DISPLAYFREQUENCY
       .dmSize = LenB(DM)
    End With
    
    If ChangeDisplaySettings(DM, CDS_FORCE) <> 0 Then
    
        MsgBox "错误!不支持此模式!"
        
    End If

End Sub

Private Sub Form_Load()
   txtOldWidth.Text = GetDeviceCaps(Me.hdc, HORZRES)
   txtOldHeight.Text = GetDeviceCaps(Me.hdc, VERTRES)
   txtOldColor.Text = GetDeviceCaps(Me.hdc, BITSPIXEL)
   txtOldFreq.Text = GetDeviceCaps(Me.hdc, VREFRESH)
End Sub




相关文章

相关软件