Private Declare Function CreateToolhelp32Snapshot Lib "kernel32" (ByVal dwFlags As Long, ByVal th32ProcessID As Long) As Long Private Declare Function Process32First Lib "kernel32" (ByVal hSnapshot As Long, lppe As PROCESSENTRY32) As Long Private Declare Function Process32Next Lib "kernel32" (ByVal hSnapshot As Long, lppe As PROCESSENTRY32) As Long Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal blnheritHandle As Long, ByVal dwAppProcessId As Long) As Long
Private Declare Function TerminateProcess Lib "kernel32" (ByVal ApphProcess As Long, ByVal uExitCode As Long) As Long
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 * 1024 End Type
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 Dim pid As Long Dim pname As String
Private Sub Command1_Click() Dim my As PROCESSENTRY32 Dim l As Long Dim l1 As Long Dim flag As Boolean Dim mName As String Dim i As Integer
l = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0) If l Then my.dwSize = 1060 If (Process32First(l, my)) Then '遍历第一个进程 Do i = InStr(1, my.szExeFile, Chr(0)) mName = LCase(Left(my.szExeFile, i - 1)) If mName = "vb.exe" Then MsgBox "已运行vb" flag = True Exit Sub Else flag = False End If Loop Until (Process32Next(l, my) < 1) '遍历所有进程知道返回值为False End If l1 = CloseHandle(l) End If End End Sub
Private Declare Function CreateFile Lib "kernel32" Alias "CreateFileA" (ByVal lpFileName As String, ByVal dwDesiredAccess As Long, ByVal dwShareMode As Long, lpSecurityAttributes As String, ByVal dwCreationDisposition As Long, ByVal dwFlagsAndAttributes As Long, ByVal hTemplateFile As Long) As Long Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long Private Const GENERIC_READ = &H80000000 Private Const GENERIC_WRITE = &H40000000 Private Const OPEN_EXISTING = 3 Private Const FILE_ATTRIBUTE_NORMAL = &H80 Private Const INVALID_HANDLE_VALUE = -1Private Function IsFileRun(ByVal pFile As String) As Boolean Dim Ret As Long Ret = CreateFile(pFile, GENERIC_READ Or GENERIC_WRITE, 0&, vbNullString, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0&) IsFileRun = (Ret = INVALID_HANDLE_VALUE) CloseHandle Ret End Functionprivate sub command1_click() if isfilerun("c:\windows\notepad.exe")=true then msgbox "记事本已运行!" else msgbox "记事本未运行!" end if end sub注意:如果pFile是个不存在的文件,那么isfilerun也会返回true,所以最好先用dir判断一下。
谢谢各位解答,我在用如下的api时 Private Declare Function GetModuleUsage% Lib "Kernel" (ByVal hModule%) 总会提示file not found :Kernel ,为什么啊,奇怪
Private Declare Function Process32First Lib "kernel32" (ByVal hSnapshot As Long, lppe As PROCESSENTRY32) As Long
Private Declare Function Process32Next Lib "kernel32" (ByVal hSnapshot As Long, lppe As PROCESSENTRY32) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal blnheritHandle As Long, ByVal dwAppProcessId As Long) As Long
Private Declare Function TerminateProcess Lib "kernel32" (ByVal ApphProcess As Long, ByVal uExitCode As Long) As Long
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 * 1024
End Type
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
Dim pid As Long
Dim pname As String
Private Sub Command1_Click()
Dim my As PROCESSENTRY32
Dim l As Long
Dim l1 As Long
Dim flag As Boolean
Dim mName As String
Dim i As Integer
l = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0)
If l Then
my.dwSize = 1060
If (Process32First(l, my)) Then '遍历第一个进程
Do
i = InStr(1, my.szExeFile, Chr(0))
mName = LCase(Left(my.szExeFile, i - 1))
If mName = "vb.exe" Then
MsgBox "已运行vb"
flag = True
Exit Sub
Else
flag = False
End If
Loop Until (Process32Next(l, my) < 1) '遍历所有进程知道返回值为False
End If
l1 = CloseHandle(l)
End If
End
End Sub
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Private Const GENERIC_READ = &H80000000
Private Const GENERIC_WRITE = &H40000000
Private Const OPEN_EXISTING = 3
Private Const FILE_ATTRIBUTE_NORMAL = &H80
Private Const INVALID_HANDLE_VALUE = -1Private Function IsFileRun(ByVal pFile As String) As Boolean
Dim Ret As Long
Ret = CreateFile(pFile, GENERIC_READ Or GENERIC_WRITE, 0&, vbNullString, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0&)
IsFileRun = (Ret = INVALID_HANDLE_VALUE)
CloseHandle Ret
End Functionprivate sub command1_click()
if isfilerun("c:\windows\notepad.exe")=true then
msgbox "记事本已运行!"
else
msgbox "记事本未运行!"
end if
end sub注意:如果pFile是个不存在的文件,那么isfilerun也会返回true,所以最好先用dir判断一下。
Private Declare Function GetModuleUsage% Lib "Kernel" (ByVal hModule%)
总会提示file not found :Kernel ,为什么啊,奇怪