ledonoff.frm

来自「Parallel port interfacing」· FRM 代码 · 共 40 行

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "flash led  1 on and off"
   ClientHeight    =   1080
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   1080
   ScaleWidth      =   4680
   StartUpPosition =   3  'Windows Default
   Begin VB.CommandButton Command1 
      Caption         =   "&flash led 1 on and off"
      Height          =   495
      Left            =   360
      TabIndex        =   0
      Top             =   240
      Width           =   3975
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Declare Function Inp Lib "inpout32.dll" _
Alias "Inp32" (ByVal PortAddress As Integer) As Integer
Private Declare Sub Out Lib "inpout32.dll" _
Alias "Out32" (ByVal PortAddress As Integer, ByVal Value As Integer)
Private Declare Sub Sleep Lib "Kernel32" (ByVal dwMilliseconds As Long)

Private Sub Command1_Click()

Port1 = 888
Out Port1, 0 ' Pin 2 low
Sleep (200)
Out Port1, 1 ' Pin 2 high

End Sub