VB写注册表启动项
Private Sub Form_Load()
Set w = CreateObject("wscript.shell")
w.regwrite "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\" & App.EXEName, App.Path & "\" & App.EXEName & ".exe"
End Sub
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1.用VB6判断文件存在妙法
在编程时经常会用到判断文件是否存在，比如对文件做读写操作前，或是判断密钥文件是否存在等。判断的方法有很多，有些方法虽很实用，但有点繁琐。其实还可以有更简单的方法，就是使用VB 6.0提供的FileSystemObject对象。
FileSystemObject对象不是VB内置对象，使用前必须首先选择[工程]&rar ......
VB.NET 禁止一个程序运行多次代码:
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If UBound(Diagnostics.Process.GetProcessesByName(Diagnostics.Process.GetCurrentProcess.ProcessName)) > 0 Then
MsgB ......
DB2ConnectionString
b2str = "Provider=MSDASQL.1;Password=a$sk6G7;Persist Security Info=True;User ID=DBA;Data Source=ConDB2SFXXK"
AccessConnectonString
accessstr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & App.Path & "\DMSJK.mdb;Jet OLEDB:database password=" ......
Option Explicit
Private Type BROWSEINFO
hOwner As Long
pidlRoot As Long
pDisplayName As String
lpTitle As String
ulFlags As Long
lpfn As Long
lParam As Long
iImage As Long
End Type
Private Declare Function SHGetPathfromIDList Lib "shell32.dll" Alias _
"SHGetPa ......
VB 长整型和字节数组的转换问题 (Long<>Byte)
Posted by JiaJia 17 March,2009 (0)Comment
用到的API声明：
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)
Long2Byte
Dim TempLng As Long
Dim TempBytes(0 To 3) As Byte ......
