frmmain.frm

DLL注入

VERSION 5.00
Object = "{F9043C88-F6F2-101A-A3C9-08002B2F49FB}#1.2#0"; "COMDLG32.OCX"
Begin VB.Form frmMain 
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "DLL注入 for X论坛"
   ClientHeight    =   1770
   ClientLeft      =   45
   ClientTop       =   435
   ClientWidth     =   4935
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   1770
   ScaleWidth      =   4935
   StartUpPosition =   2  '屏幕中心
   Begin MSComDlg.CommonDialog cdlg1 
      Left            =   4080
      Top             =   720
      _ExtentX        =   847
      _ExtentY        =   847
      _Version        =   393216
   End
   Begin VB.CommandButton btnUnloadDll 
      Caption         =   "卸载(&U)"
      Height          =   350
      Left            =   1800
      TabIndex        =   6
      Top             =   1200
      Width           =   1200
   End
   Begin VB.CommandButton btnLoadDll 
      Caption         =   "注入(&L)"
      Height          =   350
      Left            =   240
      TabIndex        =   5
      Top             =   1200
      Width           =   1200
   End
   Begin VB.TextBox edtProcessId 
      Height          =   300
      Left            =   1800
      TabIndex        =   4
      Text            =   "0"
      Top             =   650
      Width           =   2100
   End
   Begin VB.CommandButton btnChooseDLL 
      Caption         =   "选择(&B)"
      Height          =   300
      Left            =   3900
      TabIndex        =   2
      Top             =   200
      Width           =   975
   End
   Begin VB.TextBox edtDLLFileName 
      Height          =   300
      Left            =   1800
      Locked          =   -1  'True
      TabIndex        =   1
      Top             =   200
      Width           =   2100
   End
   Begin VB.Label Label3 
      Alignment       =   2  'Center
      Caption         =   "编程小猪"
      Height          =   250
      Left            =   3300
      TabIndex        =   7
      Top             =   1360
      Width           =   1575
   End
   Begin VB.Label Label2 
      Alignment       =   1  'Right Justify
      Caption         =   "注入进程的ID(&P)："
      Height          =   250
      Left            =   120
      TabIndex        =   3
      Top             =   720
      Width           =   1650
   End
   Begin VB.Label Label1 
      Alignment       =   1  'Right Justify
      Caption         =   "用来注入的DLL(&D)："
      Height          =   250
      Left            =   120
      TabIndex        =   0
      Top             =   240
      Width           =   1650
   End
End
Attribute VB_Name = "frmMain"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'单击“先择”
Private Sub btnChooseDLL_Click()
    '使用Common Dialog获取一个DLL文件路径
    With cdlg1
        .FileName = ""                                          '初始化FileName属性为空字符串
        .Flags = &H4                                            '不显示“以只读方式打开”选项
        .Filter = "DLL文件(*.dll)|*.dll"                        '设置过滤器为DLL文件
        .ShowOpen                                               '显示对话框
        If .FileName <> "" Then edtDLLFileName.Text = .FileName '如果FileName属性不为空字符串，就设置文本框的置为DLL文件路径
    End With
End Sub

'单击“注入”
Private Sub btnLoadDll_Click()
    On Error GoTo errHandle
    
    If Trim(edtProcessId.Text) = "" Or Trim(edtDLLFileName.Text) = "" Then
        MsgBox "请指定一个合适的DLL文件路径和运行中的进程ID值", vbInformation Or vbOKOnly, "提示"
        Exit Sub
    End If
    
    '调用LoadDLL加载DLL
    Call LoadDLL(CLng(edtProcessId.Text), edtDLLFileName.Text)
    
    Exit Sub
errHandle:
    MsgBox Err.Description, vbInformation Or vbOKOnly, "错误"
    Err.Clear
End Sub


'单击“卸载”
Private Sub btnUnloadDll_Click()
    On Error GoTo errHandle
    
    If Trim(edtProcessId.Text) = "" Or Trim(edtDLLFileName.Text) = "" Then
        MsgBox "请指定一个合适的DLL文件路径和运行中的进程ID值", vbInformation Or vbOKOnly, "提示"
        Exit Sub
    End If
    
    '调用UnloadDLL卸载DLL
    '如果DLL被加载多次，调用一次并不能成功卸载，因为系统为每个DLL设置了一个计数器，每加载一次，计数器的值会增加1
    '而每卸载一次，计数器的值减少1，只有当计数器为0时，系统才会真正的卸载这个DLL
    Call UnloadDLl(CLng(edtProcessId.Text), edtDLLFileName.Text)
    
    Exit Sub
errHandle:
    MsgBox Err.Description, vbInformation Or vbOKOnly, "错误"
    Err.Clear
End Sub