VB中如何实现在另外的窗口中点击或者按下快捷键的问题

发布网友 发布时间：2024-07-16 00:42

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共2个回答

热心网友 时间：2024-08-07 00:50

'1、在声明中加入下面代码
Private Declare Function SetForegroundWindow Lib "user32" (ByVal hWnd As Long) As Long
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Private Declare Sub keybd_event Lib "user32" (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long)
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, _
ByVal lpWindowName As String) As Long
Private Declare Function GetClassName Lib "user32" Alias "GetClassNameA" (ByVal hWnd As Long, _
ByVal lpClassName As String, _
ByVal nMaxCount As Long) _
As Long
Private Declare Function GetDesktopWindow Lib "user32" () As Long
Private Declare Function GetWindow Lib "user32" (ByVal hWnd As Long, ByVal wCmd As Long) As Long
Private Declare Function GetWindowText Lib "user32" Alias "GetWindowTextA" (ByVal hWnd As Long, _
ByVal lpString As String, ByVal cch As Long) _
As Long
Private Const GW_CHILD = 5
Private Const GW_HWNDNEXT = 2
Private Const KEYEVENTF_EXTENDEDKEY = &H1
Private Const KEYEVENTF_KEYUP = &H2
Private Const WM_SETFOCUS = &H7
'2、关健代码如下：
Private Sub Timer1_Timer()
Dim lngDeskTopHandle As Long
Dim lngHand As Long
Dim strName As String * 255
Dim S As String
lngDeskTopHandle = GetDesktopWindow()
lngHand = GetWindow(lngDeskTopHandle, GW_CHILD)
Do While lngHand <> 0

GetWindowText lngHand, strName, Len(strName)

lngHand = GetWindow(lngHand, GW_HWNDNEXT)

If Left$(strName, 1) <> vbNullChar Then
S = Left$(strName, InStr(1, strName, vbNullChar))
If S = "你要查找的窗口标题" Then '开始模拟按crtl+s键
SetForegroundWindow lngHand
Sleep 200
SendMessage MainWnd, WM_SETFOCUS, 0&, 0&
keybd_event vbKeyControl, 0, KEYEVENTF_EXTENDEDKEY, 0
keybd_event vbKeyS, 0, KEYEVENTF_EXTENDEDKEY, 0
Sleep 100
keybd_event vbKeyControl, 0, KEYEVENTF_EXTENDEDKEY Or KEYEVENTF_KEYUP, 0
keybd_event vbKeyS, 0, KEYEVENTF_EXTENDEDKEY Or KEYEVENTF_KEYUP, 0
End If
End If
Loop

End Sub

热心网友 时间：2024-08-07 00:47

你说的已运行的程序或窗口是外部的还是内部的？
好像要调用API函数、、可以去网上搜下
我搜了一个给你看看，你举一反三就可以了

》》》vb怎么检测进程里某程序正在运行呢？
Const TH32CS_SNAPHEAPLIST = &H1
Const TH32CS_SNAPPROCESS = &H2
Const TH32CS_SNAPTHREAD = &H4
Const TH32CS_SNAPMODULE = &H8
Const TH32CS_SNAPALL = (TH32CS_SNAPHEAPLIST Or TH32CS_SNAPPROCESS Or TH32CS_SNAPTHREAD Or TH32CS_SNAPMODULE)
Const TH32CS_INHERIT = &H80000000
Const MAX_PATH As Integer = 260
Private Type PROCESSENTRY32
dwSize As Long
cntUsage As Long
th32ProcessID As Long
th32DefaultHeapID As Long
th32ModuleID As Long
cntThreads As Long
th32ParentProcessID As Long
pcPriClassBase As Long
dwFlags As Long
szExeFile As String * MAX_PATH
End Type
Private Declare Function CreateToolhelp32Snapshot Lib "kernel32" (ByVal lFlags As Long, ByVal lProcessID As Long) As Long
Private Declare Function Process32First Lib "kernel32" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
Private Declare Function Process32Next Lib "kernel32" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
Private Declare Sub ExitProcess Lib "kernel32" (ByVal uExitCode As Long)
Private Declare Function GetExitCodeProcess Lib "kernel32" (ByVal hProcess As Long, lpExitCode As Long) As Long

Function exitproc(ByVal exefile As String) As Boolean
exitproc = False
Dim hSnapShot As Long, uProcess As PROCESSENTRY32
hSnapShot = CreateToolhelp32Snapshot(TH32CS_SNAPALL, 0&)
uProcess.dwSize = Len(uProcess)
r = Process32First(hSnapShot, uProcess)
Do While r
If Left$(uProcess.szExeFile, IIf(InStr(1, uProcess.szExeFile, Chr$(0)) > 0, InStr(1, uProcess.szExeFile, Chr$(0)) - 1, 0)) = exefile Then
exitproc = True
Exit Do
End If
'Retrieve information about the next process recorded in our system snapshot
r = Process32Next(hSnapShot, uProcess)
Loop
End Function

Private Sub Command1_Click()
MsgBox exitproc("vb6.exe")
End Sub