vb 获取窗口句柄 并发信息
(本文中部分使用繁体字,如果在简体系统下请将第三部实例程序记事本标题换成相对应的简体名称) 第一部分: 常用的与窗体相关的API函数 Public Declare Function ShowWindow Lib"user32" (ByVal hwnd As Long,ByVal nCmdShow As Long) As Long (根据句柄控制某一窗体显示状态) Public Declare Function EnableWindow Lib"user32" (ByVal hwnd As Long,ByVal fEnable As Long) As Long(使能窗口事件) Public Declare Function FindWindow Lib"user32" Alias "FindWindowA" (ByVal lpClassName As String,ByVal lpWindowName As String) As Long(根据标题找主窗口句柄) Public Declare Function EnumWindows Lib"user32" (ByVal lpEnumFunc As Long,ByVal lParam As Long) As Long(找到窗口组) Public Declare Function FindWindowEx Lib"user32" Alias "FindWindowExA" (ByVal hWnd1 As Long,ByValhWnd2 As Long,ByVal lpsz1 As String,ByVal lpsz2 As String) As Long(找子窗口部件) Public Declare Function GetParent Lib"user32" (ByVal hwnd As Long) As Long Public Declare Function GetWindow Lib"user32" (ByVal hwnd As Long,ByVal wCmd As Long) As Long Public Declare Function GetWindowText Lib"user32" Alias "GetWindowTextA" (ByVal hwnd As Long,ByVallpString As String,ByVal cch As Long) As Long(获取窗口标题) Public Declare Function GetClassName Lib"user32" Alias "GetClassNameA" (ByVal hwnd As Long,ByVallpClassName As String,ByVal nMaxCount As Long) As Long(获取窗口类) Public Declare Function SendMessage Lib"user32" Alias "SendMessageA" (ByVal hwnd As Long,ByValwMsg As Long,ByVal wParam As Long,lParam As Any) As Long(发送信息) Private Declare Function PostMessage Lib"user32" Alias "PostMessageA" (ByVal hwnd As Long,ByVal lParam As Long) As Long(发送信息) Public Declare Sub Sleep Lib "kernel32"(ByVal dwMilliseconds As Long) (延时用) Public Declare Sub keybd_event Lib"user32" (ByVal bVk As Byte,ByVal bScan As Byte,ByVal dwFlags AsLong,ByVal dwExtraInfo As Long)(键盘事件) 第二部分 按键编码 Public Const VK_LBUTTON = &H1 Public Const VK_RBUTTON = &H2 Public Const VK_CANCEL = &H3 Public Const VK_MBUTTON = &H4 Public Const VK_BACK = &H8 Public Const VK_TAB = &H9 Public Const VK_CLEAR = &HC Public Const VK_RETURN = &HD Public Const VK_SHIFT = &H10 Public Const VK_CONTROL = &H11 Public Const VK_MENU = &H12 Public Const VK_PAUSE = &H13 Public Const VK_CAPITAL = &H14 Public Const VK_ESCAPE = &H1B Public Const VK_SPACE = &H20 Public Const VK_PRIOR = &H21 Public Const VK_NEXT = &H22 Public Const VK_END = &H23 Public Const VK_HOME = &H24 Public Const VK_LEFT = &H25 Public Const VK_UP = &H26 Public Const VK_RIGHT = &H27 Public Const VK_DOWN = &H28 Public Const VK_Select = &H29 Public Const VK_PRINT = &H2A Public Const VK_EXECUTE = &H2B Public Const VK_SNAPSHOT = &H2C Public Const VK_Insert = &H2D Public Const VK_Delete = &H2E Public Const VK_HELP = &H2F Public Const VK_0 = &H30 Public Const VK_1 = &H31 Public Const VK_2 = &H32 Public Const VK_3 = &H33 Public Const VK_4 = &H34 Public Const VK_5 = &H35 Public Const VK_6 = &H36 Public Const VK_7 = &H37 Public Const VK_8 = &H38 Public Const VK_9 = &H39 Public Const VK_A = &H41 Public Const VK_B = &H42 Public Const VK_C = &H43 Public Const VK_D = &H44 Public Const VK_E = &H45 Public Const VK_F = &H46 Public Const VK_G = &H47 Public Const VK_H = &H48 Public Const VK_I = &H49 Public Const VK_J = &H4A Public Const VK_K = &H4B Public Const VK_L = &H4C Public Const VK_M = &H4D Public Const VK_N = &H4E Public Const VK_O = &H4F Public Const VK_P = &H50 Public Const VK_Q = &H51 Public Const VK_R = &H52 Public Const VK_S = &H53 Public Const VK_T = &H54 Public Const VK_U = &H55 Public Const VK_V = &H56 Public Const VK_W = &H57 Public Const VK_X = &H58 Public Const VK_Y = &H59 Public Const VK_Z = &H5A Public Const VK_STARTKEY = &H5B Public Const VK_CONTEXTKEY = &H5D Public Const VK_NUMPAD0 = &H60 Public Const VK_NUMPAD1 = &H61 Public Const VK_NUMPAD2 = &H62 Public Const VK_NUMPAD3 = &H63 Public Const VK_NUMPAD4 = &H64 Public Const VK_NUMPAD5 = &H65 Public Const VK_NUMPAD6 = &H66 Public Const VK_NUMPAD7 = &H67 Public Const VK_NUMPAD8 = &H68 Public Const VK_NUMPAD9 = &H69 Public Const VK_MULTIPLY = &H6A Public Const VK_ADD = &H6B Public Const VK_SEPARATOR = &H6C Public Const VK_SUBTRACT = &H6D Public Const VK_DECIMAL = &H6E Public Const VK_DIVIDE = &H6F Public Const VK_F1 = &H70 Public Const VK_F2 = &H71 Public Const VK_F3 = &H72 Public Const VK_F4 = &H73 Public Const VK_F5 = &H74 Public Const VK_F6 = &H75 Public Const VK_F7 = &H76 Public Const VK_F8 = &H77 Public Const VK_F9 = &H78 Public Const VK_F10 = &H79 Public Const VK_F11 = &H7A Public Const VK_F12 = &H7B Public Const VK_F13 = &H7C Public Const VK_F14 = &H7D Public Const VK_F15 = &H7E Public Const VK_F16 = &H7F Public Const VK_F17 = &H80 Public Const VK_F18 = &H81 Public Const VK_F19 = &H82 Public Const VK_F20 = &H83 Public Const VK_F21 = &H84 Public Const VK_F22 = &H85 Public Const VK_F23 = &H86 Public Const VK_F24 = &H87 Public Const VK_NUMLOCK = &H90 Public Const VK_OEM_SCROLL = &H91 Public Const VK_OEM_1 = &HBA Public Const VK_OEM_PLUS = &HBB Public Const VK_OEM_COMMA = &HBC Public Const VK_OEM_MINUS = &HBD Public Const VK_OEM_PERIOD = &HBE Public Const VK_OEM_2 = &HBF Public Const VK_OEM_3 = &HC0 Public Const VK_OEM_4 = &HDB Public Const VK_OEM_5 = &HDC Public Const VK_OEM_6 = &HDD Public Const VK_OEM_7 = &HDE Public Const VK_OEM_8 = &HDF Public Const VK_ICO_F17 = &HE0 Public Const VK_ICO_F18 = &HE1 Public Const VK_OEM102 = &HE2 Public Const VK_ICO_HELP = &HE3 Public Const VK_ICO_00 = &HE4 Public Const VK_ICO_CLEAR = &HE6 Public Const VK_OEM_RESET = &HE9 Public Const VK_OEM_JUMP = &HEA Public Const VK_OEM_PA1 = &HEB Public Const VK_OEM_PA2 = &HEC Public Const VK_OEM_PA3 = &HED Public Const VK_OEM_WSCTRL = &HEE Public Const VK_OEM_CUSEL = &HEF Public Const VK_OEM_ATTN = &HF0 Public Const VK_OEM_FINNISH = &HF1 Public Const VK_OEM_COPY = &HF2 Public Const VK_OEM_AUTO = &HF3 Public Const VK_OEM_ENLW = &HF4 Public Const VK_OEM_BACKTAB = &HF5 Public Const VK_ATTN = &HF6 Public Const VK_CRSEL = &HF7 Public Const VK_EXSEL = &HF8 Public Const VK_EREOF = &HF9 Public Const VK_PLAY = &HFA Public Const VK_ZOOM = &HFB Public Const VK_NONAME = &HFC Public Const VK_PA1 = &HFD Public Const VK_OEM_CLEAR = &HFE 第三部分: 实例打开记事本---并发送信息 (上面的声明放在一个模块中即可) Option Explicit Private StartTime As Long Private Declare Function SendMessage& Lib"user32" Alias "SendMessageA" (ByVal hwnd As Long,lParam As Any) Private Declare Function PostMessage Lib"user32" Alias "PostMessageA" (ByVal hwnd As Long,ByVal lParam As Long) As Long Private Declare Function FindWindow Lib"user32" Alias "FindWindowA" (ByVal lpClassName As String,ByVal lpWindowName As String) As Long Private Const WM_KEYDOWN = &H100 Private Const VK_F1 = &H70 Private Const WM_KEYUP = &H101 Public Sub Delay(mSec As Long) DimTStart As Single TStart =Timer While(Timer - TStart) < (mSec / 1000) DoEvents Wend End Sub Private Sub Command1_Click() DimReturnValue ReturnValue = Shell("notepad.exe",vbNormalFocus) '打开记事本 AppActivate ReturnValue '激活窗口 Dim hwndAs Long
hwnd =FindWindow(vbNullString,"未命名-记事本")'窗口标题 SendKeys"= ",True SendKeys"I am ok",True SendKeys"{ENTER}",True SendKeys "{TAB}",True PostMessage hwnd,WM_KEYDOWN,VK_RETURN,0 Delay(1000) PostMessage hwnd,WM_KEYUP,0 Delay(1000) SendKeys "5",True End Sub Private Sub Command2_Click() End End Sub
第四部分 总结 获取句柄的方法 1主窗体(可参考上面的方法) 如果是多个窗体要查找某一个
'用 FindWindowEx 查找第一个,再用找到的窗口句柄作为参数再次调用 FindWindowEx,查找第二个,直到返回 0 为止 '得到句柄后,用 GetWindowText 得到标题,分析它提取出你需要的窗口 Private Declare Function GetWindowText Lib "user32" Alias "GetWindowTextA" (ByVal hwnd As Long,ByVal lpString As String,ByVal cch As Long) As Long Private Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As Long,ByVal hWnd2 As Long,ByVal lpsz2 As String) As Long Private Sub Command1_Click() Dim dl As Long,winHwnd As Long,nStr As String,nSize As Long nSize = 128 Do winHwnd = FindWindowEx(0,winHwnd,vbNullString,vbNullString) '得到一个窗口句柄 If winHwnd = 0 Then Exit Do nStr = String(nSize,vbNullChar) dl = GetWindowText(winHwnd,nStr,nSize) '得到窗口标题 nStr = Left(nStr,InStr(nStr,vbNullChar) - 1) '去掉后面的无用字符 If LCase(Right(nStr,5)) = "1.exe" Then MsgBox winHwnd & vbCrLf & nStr '提取出符合条件的标题 Loop
2子窗体(部件),窗体组 `控件需要知道类名可以用spy++查看 privateSubCommand1_Click()
发送信息的方法 1-------------- 先获取窗口句柄(方法同上),然后用sendmessage发信息 Private Const WM_SETTEXT = &HC Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long,ByVal wMsg As Long,lParam As Any) As Long Private Declare Function GetDlgItem Lib "user32" (ByVal hDlg As Long,ByVal nIDDlgItem As Long) As Long Dim s As String Dim FT_hWnd As Long Dim ID_Control_hWnd As Long s = "test" & vbCrLf & "找到你了" ID_Control_hWnd = GetDlgItem(你得到的句柄值,&HF) SendMessage ID_Control_hWnd,ByVal s
2------------------------------ 用 SendKeys 语句 ' SendKeys "I am ok",True ' SendKeys "{ENTER}",True ' PostMessage hwnd,0 ' Delay (1000) ' PostMessage hwnd,0 ' Delay (1000) (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |