Microsoft KB Archive/152601

= Getting Windows Status Information from Windows API =

Article ID: 152601

Article Last Modified on 10/10/2006

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APPLIES TO


 * Microsoft Excel 97 Standard Edition
 * Microsoft Excel 95 Standard Edition

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This article was previously published under Q152601





SUMMARY
The following Visual Basic for Applications sample procedure demonstrates how you can obtain system status information similar to the information displayed in the Windows Program Manager About box. The sample program displays the following information using the Windows API function(s) indicated:
 * The Windows version number with the GetVersion function.
 * The CPU processor type.
 * The amount of free memory



MORE INFORMATION
Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements. To get Windows status information using Windows API calls, use the following steps to enter and run the code:  In Microsoft Excel, create a new workbook. On the Insert menu, point to Macro, and then click Module.

In Microsoft Excel 97, click the Tools menu, point to Macro, and click Visual Basic Editor. Then, click Module on the Insert menu.  On the new module sheet, type the following code: Option Explicit

Type SYSTEM_INFO dwOemID As Long dwPageSize As Long lpMinimumApplicationAddress As Long lpMaximumApplicationAddress As Long dwActiveProcessorMask As Long dwNumberOrfProcessors As Long dwProcessorType As Long dwAllocationGranularity As Long dwReserved As Long End Type

Type OSVERSIONINFO dwOSVersionInfoSize As Long dwMajorVersion As Long dwMinorVersion As Long dwBuildNumber As Long dwPlatformId As Long szCSDVersion As String * 128 End Type

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

'The following three Declare lines must be each entered on a single 'line. Declare Function GetVersionEx Lib "kernel32" Alias "GetVersionExA" _ (LpVersionInformation As OSVERSIONINFO) As Long Declare Sub GlobalMemoryStatus Lib "kernel32" (lpBuffer As _               MEMORYSTATUS) Declare Sub GetSystemInfo Lib "kernel32" (lpSystemInfo As _                 SYSTEM_INFO)

Public Const PROCESSOR_INTEL_386 = 386 Public Const PROCESSOR_INTEL_486 = 486 Public Const PROCESSOR_INTEL_PENTIUM = 586 Public Const PROCESSOR_MIPS_R4000 = 4000 Public Const PROCESSOR_ALPHA_21064 = 21064

Sub SystemInformation Dim msg As String        ' Status information. Dim NewLine As String    ' New-line. Dim ret As Integer       ' OS Information Dim ver_major As Integer ' OS Version Dim ver_minor As Integer ' Minor Os Version Dim Build As Long        ' OS Build

NewLine = Chr(13) + Chr(10) ' New-line. ' Get operating system and version. Dim verinfo As OSVERSIONINFO verinfo.dwOSVersionInfoSize = Len(verinfo) ret = GetVersionEx(verinfo) If ret = 0 Then MsgBox "Error Getting Version Information" End End If

Select Case verinfo.dwPlatformId Case 0 msg = msg + "Windows 32s " Case 1 msg = msg + "Windows 95 " Case 2 msg = msg + "Windows NT " End Select

ver_major = verinfo.dwMajorVersion ver_minor = verinfo.dwMinorVersion Build = verinfo.dwBuildNumber msg = msg & ver_major & "." & ver_minor msg = msg & " (Build " & Build & ")" & NewLine & NewLine

' Get CPU type and operating mode. Dim sysinfo As SYSTEM_INFO GetSystemInfo sysinfo msg = msg + "CPU: " Select Case sysinfo.dwProcessorType Case PROCESSOR_INTEL_386 msg = msg + "Intel 386" + NewLine Case PROCESSOR_INTEL_486 msg = msg + "Intel 486" + NewLine Case PROCESSOR_INTEL_PENTIUM msg = msg + "Intel Pentium" + NewLine Case PROCESSOR_MIPS_R4000 msg = msg + "MIPS R4000" + NewLine Case PROCESSOR_ALPHA_21064 msg = msg + "DEC Alpha 21064" + NewLine Case Else msg = msg + "(unknown)" + NewLine End Select

msg = msg + NewLine

' Get free memory. Dim memsts As MEMORYSTATUS Dim memory As Long GlobalMemoryStatus memsts memory = memsts.dwTotalPhys msg = msg + "Total Physical Memory: " msg = msg + Format(memory \ 1024, "###,###,###") + "K" + NewLine memory = memsts.dwAvailPhys msg = msg + "Available Physical Memory: " msg = msg + Format(memory \ 1024, "###,###,###") + "K" + NewLine memory = memsts.dwTotalVirtual msg = msg + "Total Virtual Memory: " msg = msg + Format(memory \ 1024, "###,###,###") + "K" + NewLine memory = memsts.dwAvailVirtual msg = msg + "Available Virtual Memory: " msg = msg + Format(memory \ 1024, "###,###,###") + "K" + NewLine

MsgBox msg, vbOKOnly, "System Info" End Sub  On the Tools menu, click Macro, click SystemInformation, and then click Run to run the macro.

In Microsoft Excel 97, click the Tools menu, point to Macro, and click Macros. Then, click SystemInformation and click Run.

The macro should display a message box that shows your system information.

