vb管道运用实例
摘自VB吧高手鲸无敌兄的一段管首示例代码：
'******* 读取DOS程序ipconfig.exe的返回结果： ********
'作者： 鲸无敌 2006-10-19 21:57
'**************************************************
'窗体代码：Form1
'**************************************************
Option Explicit
Private Const NORMAL_PRIORITY_CLASS = &H20&
Private Const STARTF_USESTDHANDLES = &H100&
Private Const STARTF_USESHOWWINDOW = &H1
Private Type SECURITY_ATTRIBUTES
nLength As Long
lpSecurityDescriptor As Long
bInheritHandle As Long
End Type
Private Type STARTUPINFO
cb As Long
lpReserved As Long
lpDesktop As Long
lpTitle As Long
dwX As Long
dwY As Long
dwXSize As Long
dwYSize As Long
dwXCountChars As Long
dwYCountChars As Long
dwFillAttribute As Long
dwFlags As Long
wShowWindow As Integer
cbReserved2 As Integer
lpReserved2 As Long
hStdInput As Long
hStdOutput As Long
hStdError As Long
End Type
Private Type PROCESS_INFORMATION
hProcess As Long
hThread As Long
dwProcessID As Long
dwThreadID As Long
End Type
Private Declare Function CreatePipe Lib "kernel32" (phReadPipe As Long, phWritePipe As Long, lpPipeAttributes As SECURITY_ATTRIBUTES, ByVal nSize As Long) As Long
Private Declare Function CreateProcess Lib "kernel32" Alias "CreateProcessA" (ByVal lpApplicationName As String, ByVal lpCommandLine As String, lpProcessAttributes As SECURITY_ATTRIBUTES, lpThreadAttributes As SECURITY_ATTRIBUTES, ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, lpEnvironment As Any, ByVal lpCurrentDriectory As String, lpStartupInfo As STARTUPINFO, lpProcessInformation As PROCESS_INFORMATION) As Long
Private Declare Function ReadFile Lib "kernel32" (ByVal hFile As Long, ByVal lpBuffer As String, ByVal nNumberOfBytesToRead As Long, lpNumberOfBytesRead As Long, ByVal lpOverlapped As Long) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Private Sub Command1_Click()
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Dim cn As ADODB.Connection
Dim rs As ADODB.Recordset
Set cn = New ADODB.Connection
cn.Open "Provider=OraOLEDB.Oracle.1;Persist Security Info= ......
报告书
名称
实验10-1 实现计算器的功能
姓名
指导教师
学号
日期
任务清单
在本练习中，你将使绘制的计算器完成简单的四则运算。
1) 启动Visual Studio 2005。
2) 新建一个VB Windows� ......
调用方法很简单，在Form中如下书写代码：
Private Sub Form_Load()
SetHotkey 1, "Ctrl,112", "Add" '按 Ctrl+F1 激活指定程序，F1的Ascii码为112
SetHotkey 2, 113, "Add" '按 F2 激活指定程序，F2的Ascii码为113
SetHotkey 3, "Ctrl+Alt,113", "Add" '按 Ctrl+Alt+F2 激活指定程序，F2的Ascii码为113
End Sub
Priva ......
由底至上是：
• 托管资源
• WMI 基础结构
• 使用者
托管资源
托管资源是任意逻辑或物理组件，通过使用 WMI 进行公开和管理。可以使用 WMI 管理� ......
添加
两个TEXT(multiline=true)
一个按钮
Private Function isChinese(ByVal asciiv) As Boolean
a = AscW(asciiv)
If Len(Hex$(a)) > 2 Then
isChinese = True
Else
isChinese = False
End If
End Function
Private Sub Command1_Click()
text2.text="" '先清空text2
For i = 1 To Len(Text1.Text)
DoEve ......
