我在申明函数“Private Declare Function Process32First Lib "kernel32" (ByVal hSnapShot As Long, lppe As PROCESSENTRY32) As Long”时,VB提示错误“用户定义类型未定义”,请问如何解决?请详细说一下。
PublicType 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(1 to 260) as Byte End Type
'Example Name:EnumProcesses 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 CloseHandle Lib "Kernel32" (ByVal hPass As Long) Private Sub Form_Load() 'KPD-Team 2000 'URL: http://www.allapi.net/ 'E-Mail: [email protected] Dim hSnapShot As Long, uProcess As PROCESSENTRY32 'Takes a snapshot of the processes and the heaps, modules, and threads used by the processes hSnapShot = CreateToolhelp32Snapshot(TH32CS_SNAPALL, 0&) 'set the length of our ProcessEntry-type uProcess.dwSize = Len(uProcess) 'Retrieve information about the first process encountered in our system snapshot r = Process32First(hSnapShot, uProcess) 'set graphics mode to persistent Me.AutoRedraw = True Do While r Me.Print Left$(uProcess.szExeFile, IIf(InStr(1, uProcess.szExeFile, Chr$(0)) > 0, InStr(1, uProcess.szExeFile, Chr$(0)) - 1, 0)) 'Retrieve information about the next process recorded in our system snapshot r = Process32Next(hSnapShot, uProcess) Loop 'close our snapshot handle CloseHandle hSnapShot End Sub 推荐你下个FoxAPI的VB的API浏览器
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(1 to 260) as Byte
End Type
'Example Name:EnumProcesses
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 CloseHandle Lib "Kernel32" (ByVal hPass As Long)
Private Sub Form_Load()
'KPD-Team 2000
'URL: http://www.allapi.net/
'E-Mail: [email protected]
Dim hSnapShot As Long, uProcess As PROCESSENTRY32
'Takes a snapshot of the processes and the heaps, modules, and threads used by the processes
hSnapShot = CreateToolhelp32Snapshot(TH32CS_SNAPALL, 0&)
'set the length of our ProcessEntry-type
uProcess.dwSize = Len(uProcess)
'Retrieve information about the first process encountered in our system snapshot
r = Process32First(hSnapShot, uProcess)
'set graphics mode to persistent
Me.AutoRedraw = True
Do While r
Me.Print Left$(uProcess.szExeFile, IIf(InStr(1, uProcess.szExeFile, Chr$(0)) > 0, InStr(1, uProcess.szExeFile, Chr$(0)) - 1, 0))
'Retrieve information about the next process recorded in our system snapshot
r = Process32Next(hSnapShot, uProcess)
Loop
'close our snapshot handle
CloseHandle hSnapShot
End Sub
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