如何在VB 6中獲取當前的CPU和RAM使用情況？

Question

如何獲取VB 6代碼中的CPU和內存使用情況？謝謝！

Answer 1

http://www.eggheadcafe.com/community/aspnet/8/44059/cpu-usage.aspx

Answer 2

確定CPU使用率上，目前該機

聲明

Option Explicit 
' Note that if you declare the lpData parameter as String, you 
' must pass it By Value. 
Private Declare Function RegQueryValueEx Lib "advapi32.dll" _ 
Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName _ 
As String, ByVal lpReserved As Long, lpType As Long, lpData As _ 
Any, lpcbData As Long) As Long 

Private Declare Function RegOpenKeyEx Lib "advapi32.dll" Alias _ 
"RegOpenKeyExA" (ByVal hKey As Long, ByVal lpSubKey As String, _ 
ByVal ulOptions As Long, ByVal samDesired As Long, _ 
phkResult As Long) As Long 

Private Declare Function RegCloseKey Lib "advapi32.dll" _ 
(ByVal hKey As Long) As Long 

Private Const KEY_QUERY_VALUE = &H1 

Private Const HKEY_DYN_DATA As Long = &H80000006 
Private Const STAT_DATA = "PerfStats\StatData" 
Private Const CPU_USE = "KERNEL\CPUUsage" 

代碼

Public Function CPU_Usage_Percent() As Long 
On Error GoTo errorhandler: 
Dim lResult As Long 
Dim lData As Long 
Dim lType As Long 
Dim hKey As Long 


lResult = RegOpenKeyEx(HKEY_DYN_DATA, STAT_DATA, _ 
    0, KEY_QUERY_VALUE, hKey) 

If lResult = 0 Then 
    lResult = RegQueryValueEx(hKey, CPU_USE, 0, _ 
    lType, lData, 4) 
    If lResult = 0 Then 
     CPU_Usage_Percent = lData 
     lResult = RegCloseKey(hKey) 
    End If 
End If 
Exit Function 

errorhandler: 
    On Error Resume Next 
    RegCloseKey hKey 
    Exit Function 
    End Function 

Answer 3

這裏是如何讓你的RAM信息：

你可以把下面的代碼，只是將其放到一個形式。我將把錯誤處理留給你，因爲我希望你會僅僅以此爲例。還有一個函數可以將一個64位整數轉換成一個VB雙精度值，還可以用一個函數來格式化KB，MB和GB的數字。

 
Private Declare Sub GlobalMemoryStatusEx Lib "kernel32" (lpBuffer As MEMORYSTATUSEX) 

Private Type INT64 
    LoPart As Long 
    HiPart As Long 
End Type 

Private Type MEMORYSTATUSEX 
    dwLength As Long 
    dwMemoryLoad As Long 
    ulTotalPhys As INT64 
    ulAvailPhys As INT64 
    ulTotalPageFile As INT64 
    ulAvailPageFile As INT64 
    ulTotalVirtual As INT64 
    ulAvailVirtual As INT64 
    ulAvailExtendedVirtual As INT64 
End Type 

Private Sub Form_Load() 

    Me.AutoRedraw = True 
    Call PrintRamInformation 

End Sub 

Private Sub PrintRamInformation() 
    Dim udtMemStatEx As MEMORYSTATUSEX 

    Me.Cls 

    udtMemStatEx.dwLength = Len(udtMemStatEx) 
    Call GlobalMemoryStatusEx(udtMemStatEx) 

    Me.Print "Total physical memory" + vbTab + NumberInKB(CLargeInt(udtMemStatEx.ulTotalPhys.LoPart, udtMemStatEx.ulTotalPhys.HiPart)) & " (" & Round(CLargeInt(udtMemStatEx.ulAvailPhys.LoPart, udtMemStatEx.ulAvailPhys.HiPart)/(CLargeInt(udtMemStatEx.ulTotalPhys.LoPart, udtMemStatEx.ulTotalPhys.HiPart)) * 100) & "% Free)" 
    Me.Print "Available physical memory" + vbTab + NumberInKB(CLargeInt(udtMemStatEx.ulAvailPhys.LoPart, udtMemStatEx.ulAvailPhys.HiPart)) 
    Me.Print "Total virtual memory" + vbTab + NumberInKB(CLargeInt(udtMemStatEx.ulTotalVirtual.LoPart, udtMemStatEx.ulTotalVirtual.HiPart)) 
    Me.Print "Available virtual memory" + vbTab + NumberInKB(CLargeInt(udtMemStatEx.ulAvailVirtual.LoPart, udtMemStatEx.ulAvailVirtual.HiPart)) 
    Me.Print "Total page file" + vbTab + NumberInKB(CLargeInt(udtMemStatEx.ulTotalPageFile.LoPart, udtMemStatEx.ulTotalPageFile.HiPart)) 
    Me.Print "Available page file" + vbTab + NumberInKB(CLargeInt(udtMemStatEx.ulAvailPageFile.LoPart, udtMemStatEx.ulAvailPageFile.HiPart)) 
    Me.Print "Available extended page file" + vbTab + NumberInKB(CLargeInt(udtMemStatEx.ulAvailExtendedVirtual.LoPart, udtMemStatEx.ulAvailExtendedVirtual.HiPart)) 
    Me.Print "Memory Load" + vbTab + CStr(udtMemStatEx.dwMemoryLoad) + "%" 

End Sub 

'This function converts the LARGE_INTEGER data type to a double 
Private Function CLargeInt(Lo As Long, Hi As Long) As Double 
    Dim dblLo As Double 
    Dim dblHi As Double 

    If Lo < 0 Then 
     dblLo = 2^32 + Lo 
    Else 
     dblLo = Lo 
    End If 

    If Hi < 0 Then 
     dblHi = 2^32 + Hi 
    Else 
     dblHi = Hi 
    End If 

    CLargeInt = dblLo + dblHi * 2^32 

End Function 

Public Function NumberInKB(ByVal vNumber As Currency) As String 
    Dim strReturn As String 

    Select Case vNumber 
     Case Is < 1024^1 
     strReturn = CStr(vNumber) & " bytes" 

     Case Is < 1024^2 
     strReturn = CStr(Round(vNumber/1024, 1)) & " KB" 

     Case Is < 1024^3 
     strReturn = CStr(Round(vNumber/1024^2, 2)) & " MB" 

     Case Is < 1024^4 
     strReturn = CStr(Round(vNumber/1024^3, 2)) & " GB" 
    End Select 

    NumberInKB = strReturn 

End Function