Отображение количества оперативной памяти, которое занимает указанный процесс

'На форме Text1, Command1
Private Sub Form_Load()
        Command1.Caption = "Working Size"
        Text1.Text = "explorer.exe"
End Sub
 
Private Sub Command1_Click()
MsgBox GetProcesses(Text1.Text)
End Sub

Public Declare Function GetProcessMemoryInfo Lib "PSAPI.DLL" (ByVal hProcess As Long, ppsmemCounters As PROCESS_MEMORY_COUNTERS, ByVal cb As Long) As Long
Public Declare Function Process32First Lib "kernel32" (ByVal hSnapshot As Long, lppe As PROCESSENTRY32) As Long
Public Declare Function Process32Next Lib "kernel32" (ByVal hSnapshot As Long, lppe As PROCESSENTRY32) As Long
Public Declare Function CloseHandle Lib "Kernel32.dll" (ByVal Handle As Long) As Long
Public Declare Function OpenProcess Lib "Kernel32.dll" (ByVal dwDesiredAccessas As Long, ByVal bInheritHandle As Long, ByVal dwProcId As Long) As Long
Public Declare Function EnumProcesses Lib "PSAPI.DLL" (ByRef lpidProcess As Long, ByVal cb As Long, ByRef cbNeeded As Long) As Long
Public Declare Function GetModuleFileNameExA Lib "PSAPI.DLL" (ByVal hProcess As Long, ByVal hModule As Long, ByVal ModuleName As String, ByVal nSize As Long) As Long
Public Declare Function EnumProcessModules Lib "PSAPI.DLL" (ByVal hProcess As Long, ByRef lphModule As Long, ByVal cb As Long, ByRef cbNeeded As Long) As Long
Public Declare Function CreateToolhelp32Snapshot Lib "kernel32" (ByVal dwFlags As Long, ByVal th32ProcessID As Long) As Long
Public Declare Function GetVersionExA Lib "kernel32" (lpVersionInformation As OSVERSIONINFO) As Integer
Public Declare Function SetTimer Lib "user32" (ByVal hwnd As Long, ByVal nIDEvent As Long, ByVal uElapse As Long, ByVal lpTimerFunc As Long) As Long
Public Declare Function KillTimer Lib "user32" (ByVal hwnd As Long, ByVal nIDEvent As Long) As Long
Public Declare Sub GlobalMemoryStatus Lib "kernel32" (lpBuffer As MEMORYSTATUS)
 
 
 
Public Const PROCESS_QUERY_INFORMATION = 1024
Public Const PROCESS_VM_READ = 16
Public Const MAX_PATH = 260
Public Const STANDARD_RIGHTS_REQUIRED = &HF0000
Public Const SYNCHRONIZE = &H100000
Public Const PROCESS_ALL_ACCESS = &H1F0FFF
Public Const TH32CS_SNAPPROCESS = &H2&
Public Const hNull = 0
Public Const WIN95_System_Found = 1
Public Const WINNT_System_Found = 2
Public Const Default_Log_Size = 10000000
Public Const Default_Log_Days = 0
Public Const SPECIFIC_RIGHTS_ALL = &HFFFF
Public Const STANDARD_RIGHTS_ALL = &H1F0000
 
 
Type MEMORYSTATUS
    dwLength As Long
    dwMemoryLoad As Long
    dwTotalPhys As Long
    dwAvailPhys As Long
    dwTotalPageFile As Long
    dwAvailPageFile As Long
    dwTotalVirtual As Long
    dwAvailVirtual As Long
End Type
 
 
Type PROCESS_MEMORY_COUNTERS
    cb As Long
    PageFaultCount As Long
    PeakWorkingSetSize As Long
    WorkingSetSize As Long
    QuotaPeakPagedPoolUsage As Long
    QuotaPagedPoolUsage As Long
    QuotaPeakNonPagedPoolUsage As Long
    QuotaNonPagedPoolUsage As Long
    PagefileUsage As Long
    PeakPagefileUsage As Long
End Type
 
 
Public Type PROCESSENTRY32
    dwSize As Long
    cntUsage As Long
    th32ProcessID As Long ' This process
    th32DefaultHeapID As Long
    th32ModuleID As Long ' Associated exe
    cntThreads As Long
    th32ParentProcessID As Long ' This process's parent process
    pcPriClassBase As Long ' Base priority of process threads
    dwFlags As Long
    szExeFile As String * 260 ' MAX_PATH
    End Type
 
 
Public Type OSVERSIONINFO
    dwOSVersionInfoSize As Long
    dwMajorVersion As Long
    dwMinorVersion As Long
    dwBuildNumber As Long
    dwPlatformId As Long '1 = Windows 95.
    '2 = Windows NT
    szCSDVersion As String * 128
End Type
 
 
Public Function GetProcesses(ByVal EXEName As String) As String
 
    Dim booResult As Boolean
    Dim lngLength As Long
    Dim lngProcessID As Long
    Dim strProcessName As String
    Dim lngSnapHwnd As Long
    Dim udtProcEntry As PROCESSENTRY32
    Dim lngCBSize As Long 'Specifies the size, In bytes, of the lpidProcess array
    Dim lngCBSizeReturned As Long 'Receives the number of bytes returned
    Dim lngNumElements As Long
    Dim lngProcessIDs() As Long
    Dim lngCBSize2 As Long
    Dim lngModules(1 To 200) As Long
    Dim lngReturn As Long
    Dim strModuleName As String
    Dim lngSize As Long
    Dim lngHwndProcess As Long
    Dim lngLoop As Long
    Dim b As Long
    Dim c As Long
    Dim e As Long
    Dim d As Long
    Dim pmc As PROCESS_MEMORY_COUNTERS
    Dim lret As Long
    Dim strProcName2 As String
    Dim strProcName As String
 
    'Turn on Error handler
    On Error GoTo Error_handler
 
   booResult = False
 
    EXEName = UCase$(Trim$(EXEName))
    lngLength = Len(EXEName)
 
    'ProcessInfo.bolRunning = False
 
    Select Case getVersion()
        'I'm not bothered about windows 95/98 becasue this class probably wont be used on it anyway.
        Case WIN95_System_Found 'Windows 95/98
 
        Case WINNT_System_Found 'Windows NT
 
            lngCBSize = 8 ' Really needs To be 16, but Loop will increment prior to calling API
            lngCBSizeReturned = 96
 
            Do While lngCBSize <= lngCBSizeReturned
                DoEvents
                'Increment Size
                lngCBSize = lngCBSize * 2
                'Allocate Memory for Array
                ReDim lngProcessIDs(lngCBSize / 4) As Long
                'Get Process ID's
                lngReturn = EnumProcesses(lngProcessIDs(1), lngCBSize, lngCBSizeReturned)
            Loop
 
            'Count number of processes returned
            lngNumElements = lngCBSizeReturned / 4
            'Loop thru each process
 
            For lngLoop = 1 To lngNumElements
            DoEvents
 
            'Get a handle to the Process and Open
            lngHwndProcess = OpenProcess(PROCESS_QUERY_INFORMATION Or PROCESS_VM_READ, 0, lngProcessIDs(lngLoop))
 
            If lngHwndProcess <> 0 Then
                'Get an array of the module handles for the specified process
                lngReturn = EnumProcessModules(lngHwndProcess, lngModules(1), 200, lngCBSize2)
 
                'If the Module Array is retrieved, Get the ModuleFileName
                If lngReturn <> 0 Then
 
                    'Buffer with spaces first to allocate memory for byte array
                    strModuleName = Space(MAX_PATH)
 
                    'Must be set prior to calling API
                    lngSize = 500
 
                    'Get Process Name
                    lngReturn = GetModuleFileNameExA(lngHwndProcess, lngModules(1), strModuleName, lngSize)
 
                    'Remove trailing spaces
                    strProcessName = Left(strModuleName, lngReturn)
 
                    'Check for Matching Upper case result
                    strProcessName = UCase$(Trim$(strProcessName))
 
                    strProcName2 = GetElement(Trim(Replace(strProcessName, Chr$(0), "")), "\", 0, 0, GetNumElements(Trim(Replace(strProcessName, Chr$(0), "")), "\") - 1)
 
                    If strProcName2 = EXEName Then
 
                        'Get the Site of the Memory Structure
                        pmc.cb = LenB(pmc)
 
                           lret = GetProcessMemoryInfo(lngHwndProcess, pmc, pmc.cb)
                             GetProcesses = EXEName & "::" & CStr(pmc.WorkingSetSize / 1024)
                    End If
                End If
            End If
            'Close the handle to this process
            lngReturn = CloseHandle(lngHwndProcess)
            DoEvents
        Next
 
    End Select
 
IsProcessRunning_Exit:
 
'Exit early to avoid error handler
Exit Function
Error_handler:
    Err.Raise Err, Err.Source, "ProcessInfo", Error
    Resume Next
End Function
 
 
Private Function getVersion() As Long
 
    Dim osinfo As OSVERSIONINFO
    Dim retvalue As Integer
 
    osinfo.dwOSVersionInfoSize = 148
    osinfo.szCSDVersion = Space$(128)
    retvalue = GetVersionExA(osinfo)
    getVersion = osinfo.dwPlatformId
 
End Function
 
 
Private Function StrZToStr(s As String) As String
    StrZToStr = Left$(s, Len(s) - 1)
End Function
 
 
 
Public Function GetElement(ByVal strList As String, ByVal strDelimiter As String, ByVal lngNumColumns As Long, ByVal lngRow As Long, ByVal lngColumn As Long) As String
 
    Dim lngCounter As Long
 
    ' Append delimiter text to the end of the list as a terminator.
    strList = strList & strDelimiter
 
    ' Calculate the offset for the item required based on the number of columns the list
    ' 'strList' has i.e. 'lngNumColumns' and from which row the element is to be
    ' selected i.e. 'lngRow'.
    lngColumn = IIf(lngRow = 0, lngColumn, (lngRow * lngNumColumns) + lngColumn)
 
    ' Search for the 'lngColumn' item from the list 'strList'.
    For lngCounter = 0 To lngColumn - 1
 
        ' Remove each item from the list.
        strList = Mid$(strList, InStr(strList, strDelimiter) + Len(strDelimiter), Len(strList))
 
        ' If list becomes empty before 'lngColumn' is found then just
        ' return an empty string.
        If Len(strList) = 0 Then
            GetElement = ""
            Exit Function
        End If
 
    Next lngCounter
    ' Return the sought list element.
    GetElement = Left$(strList, InStr(strList, strDelimiter) - 1)
End Function
 
Public Function GetNumElements(ByVal strList As String, ByVal strDelimiter As String) As Integer
    Dim intElementCount As Integer
    ' If no elements in the list 'strList' then just return 0.
    If Len(strList) = 0 Then
        GetNumElements = 0
        Exit Function
    End If
    ' Append delimiter text to the end of the list as a terminator.
    strList = strList & strDelimiter
    ' Count the number of elements in 'strlist'
    While InStr(strList, strDelimiter) > 0
        intElementCount = intElementCount + 1
        strList = Mid$(strList, InStr(strList, strDelimiter) + 1, Len(strList))
    Wend
    ' Return the number of elements in 'strList'.
    GetNumElements = intElementCount
End Function

Private Sub Command1_Click()
Label1 = GetProcesses(Text1.Text)
End Sub

GetProcesses = " " & CStr(pmc.WorkingSetSize / 1024)

Option Explicit
 
Private Declare Function NtQuerySystemInformation Lib "ntdll.dll" (ByVal infoClass As Long, Buffer As Any, ByVal BufferSize As Long, ret As Long) As Long
Private Declare Function GetMem4 Lib "msvbvm60" (src As Any, dst As Any) As Long
Private Declare Function GetMem8 Lib "msvbvm60" (src As Any, dst As Any) As Long
Private Declare Sub memcpy Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)
 
Private Type UNICODE_STRING
    Length      As Integer
    MaxLength   As Integer
    lpBuffer    As Long
End Type
 
Private Const SystemProcessInformation      As Long = &H5&
Private Const STATUS_INFO_LENGTH_MISMATCH   As Long = &HC0000004
Private Const STATUS_SUCCESS                As Long = 0&
 
 
Private Sub Form_Load()
    Dim ret         As Long
    Dim buf()       As Byte
    Dim Offset      As Long
    Dim deltaOffset As Long
    Dim ImgName     As UNICODE_STRING
    Dim ProcName    As String
    Dim PID         As Long
    Dim MemWorkSet  As Long
    
    If NtQuerySystemInformation(SystemProcessInformation, ByVal 0&, 0&, ret) = STATUS_INFO_LENGTH_MISMATCH Then
    
        ReDim buf(ret - 1)
        
        If NtQuerySystemInformation(SystemProcessInformation, buf(0), ret, ret) = STATUS_SUCCESS Then
            
            Do
                GetMem8 buf(Offset + 14 * 4), ImgName
                GetMem4 buf(Offset + 17 * 4), PID
                GetMem4 buf(Offset + 26 * 4), MemWorkSet
                
                If PID = 0 Then
                    ProcName = "System Idle Process"
                Else
                    ProcName = Space$(ImgName.Length \ 2)
                    memcpy ByVal StrPtr(ProcName), ByVal ImgName.lpBuffer, ImgName.Length
                End If
                
                Debug.Print PID
                Debug.Print ProcName
                Debug.Print Format(MemWorkSet \ 1024, "0,000") & " KB."
                
                GetMem4 buf(Offset), deltaOffset
                Offset = Offset + deltaOffset
                
            Loop While deltaOffset
 
        End If
        
    End If
    
End Sub