在vb點虐 中怎么調用自定義類？

代碼已測試。

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一、測試需要的INI文件。名稱為“setinfo.ini”，存放路徑為你解決方案里“Bin“文件夾的”Debug“文件夾里。

內容：

[Location]

pnlTime.Location.X=787

pnlTime.Location.Y=0

[TopMost]

Top=True

二、操作INI文件的類。新建一個類，類中內容為：

Public?Class?Class1

Public?Declare?Function?GetPrivateProfileString?Lib?"kernel32"?Alias?"GetPrivateProfileStringA"?_

(?_

ByVal?lpApplicationName?As?String,?_

ByVal?lpKeyName?As?String,?_

ByVal?lpDefault?As?String,?_

ByVal?lpReturnedString?As?String,?_

ByVal?nSize?As?Int32,?_

ByVal?lpFileName?As?String?_

)?As?Int32

End?Class

三、界面代碼：

Imports?System.IO?'for?path

Public?Class?Form1

Private?Sub?Button1_Click(ByVal?sender?As?System.Object,?ByVal?e?As?System.EventArgs)?Handles?Button1.Click

getINI()

End?Sub

Private?Sub?getINI()

Dim?iniclass?As?New?Class1?'

Dim?myBf?As?String?'get?set_info?開辟存儲的內存

myBf?=?New?String(CChar(""),?256)

Dim?myFN?As?String?'配置文件的文件路徑

myFN?=?Path.Combine(My.Application.Info.DirectoryPath,?"setinfo.ini")

Dim?myAN?As?String?'Application_NAME,也是Section名稱

myAN?=?Me.TextBox1.Text

Dim?myKN?As?String?'KEY_NAME,關鍵字名稱

myKN?=?Me.TextBox2.Text

Class1.GetPrivateProfileString(myAN,?myKN,?"",?myBf,?myBf.Length,?myFN)?'調用讀取INI文件的操作

TextBox3.Text?=?Microsoft.VisualBasic.Left(myBf,?InStr(myBf,?Chr(0))?-?1)?'截取有用部分,有必要

End?Sub

End?Class

四、測試截圖如下

VB點虐 2005中到底怎么讀取ini文件

用API吧

Private Declare Function GetPrivateProfileString Lib "kernel32" Alias "GetPrivateProfileStringA" (ByVal lpApplicationName As String, ByVal lpKeyName As String, ByVal lpDefault As String, ByVal lpReturnedString As String, ByVal nSize As Int32, ByVal lpFileName As String) As Int32

Private Declare Function WritePrivateProfileString Lib "kernel32" Alias "WritePrivateProfileStringA" (ByVal lpApplicationName As String, ByVal lpKeyName As String, ByVal lpString As String, ByVal lpFileName As String) As Int32

'讀

Public Function GetINI(ByVal Section As String, ByVal AppName As String, ByVal lpDefault As String, ByVal FileName As String) As String

Dim Str As String = LSet(Str, 256)

GetPrivateProfileString(Section, AppName, lpDefault, Str, Len(Str), FileName)

Return Microsoft.VisualBasic.Left(Str, InStr(Str, Chr(0)) - 1)

End Function

'寫

Public Function WriteINI(ByVal Section As String, ByVal AppName As String, ByVal WriteString As String, ByVal FileName As String) As Long

WriteINI = WritePrivateProfileString(Section, AppName, WriteString, FileName)

End Function

其中，Section是像[ip]那樣的（填里面的就可以了），AppName是“=”前面的項名稱，lpDefault是如果沒有可用的值，就返回lpDefault，FileName是文件名，WriteString是要寫入的值

你所希望的：

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

MsgBox(GetINI("ip", "user_id", "", "D:\DataBase.ini"))

'返回sa

End Sub

vb點虐 如何讀取ini文件定義的ForeColor顏色值

你好，我不知道你是用什么方法保存的，不過點虐 里的color有一個方法是Color.FromArgb 你可以這么做，dim

c

as

color=richtextbox1.ForeColor dim

colorstring

as

string=c.ToArgb().ToString

colorstring就是顏色的值（字符串）再把colorstring保存到ini文件加載顏色的時候，從ini里讀取colorstring 具體是：dim

RtextColor

as

color=Color.FromArgb（cint(colorstring))richtextbox1.ForeColor

=RtextColor