Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
How to set Creation Date/Time for a folder (WinNT)
Minimizing all running applications
Retrieving current settings for an ODBC connection
Running a regular FoxPro form while main VFP window is minimized
Saving local machine ODBC Registry Entries to XML file
Start an executable from VFP application by using the CreateProcess
Starting an external application in VFP using WinExec
Using the GetTempFileName
Displaying the main Dial-Up Networking dialog box
Enumerating ODBC Data Sources available on the local computer
How to block the PrintScreen key
Setting properties of the window: caption and user-defined value
Starting a dialog box for connecting to network resources (mapping network drive)
Winsock: retrieving information from a host database for a given host name
Winsock: retrieving the standard host name and IP address for the local machine
Connecting a local device to a network resource
Dynamic strings implemented through VFP Custom class
Get the power status of your laptop computer
How to control Adobe Reader 9.0 (SDI mode) from VFP application
How to play MIDI notes
Monitoring changes occurring within a directory
Retrieving the System Time adjustment
Retrieving top-child window for the VFP form
Using FillMemory
Obtaining I/O counts for the current process

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DO declare

* retrieve a handle to the current process
hProcess = OpenProcess(;
    0, GetCurrentProcessId()) && application.ProcessId

IF hProcess = 0
    ? "OpenProcess failed:", GetLastError()

LOCAL cBuffer
cBuffer = REPLICATE(CHR(0), 48)
= GetProcessIoCounters(hProcess, @cBuffer)

? "ReadOperationCount:", buf64ToNum(SUBSTR(cBuffer,1,8))
? "WriteOperationCount:", buf64ToNum(SUBSTR(cBuffer,9,8))
? "OtherOperationCount:", buf64ToNum(SUBSTR(cBuffer,17,8))
? "ReadTransferCount:", buf64ToNum(SUBSTR(cBuffer,25,8))
? "WriteTransferCount:", buf64ToNum(SUBSTR(cBuffer,33,8))
? "OtherTransferCount:", buf64ToNum(SUBSTR(cBuffer,41,8))

= CloseHandle(hProcess)
* end of main

FUNCTION buf64ToNum(cBuffer)
    LOCAL nLo, nHi
    nLo = buf2dword(SUBSTR(cBuffer,1,4))
    nHi = buf2dword(SUBSTR(cBuffer,5,4))
RETURN m.nLo + m.nHi * (0xffffffff+1)

FUNCTION buf2dword(lcBuffer)
RETURN Asc(SUBSTR(lcBuffer, 1,1)) + ;
    BitLShift(Asc(SUBSTR(lcBuffer, 2,1)),  8) +;
    BitLShift(Asc(SUBSTR(lcBuffer, 3,1)), 16) +;
    BitLShift(Asc(SUBSTR(lcBuffer, 4,1)), 24)

    DECLARE INTEGER GetLastError IN kernel32
    DECLARE INTEGER GetCurrentProcessId IN kernel32
    DECLARE INTEGER CloseHandle IN kernel32 INTEGER hObject

    DECLARE INTEGER OpenProcess IN kernel32;
        INTEGER dwDesiredAccess,;
        INTEGER bInheritHandle, INTEGER dwProcId

    DECLARE INTEGER GetProcessIoCounters IN kernel32;
        INTEGER hProcess, STRING @lpIoCounters

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1586 bytes  
Created: 2008-03-26 17:14:26  
Modified: 2008-03-26 17:16:36  
Visits in 7 days: 52  
Listed functions:
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My comment:
The IO_COUNTERS structure contains I/O accounting information for a process or a job object. For a job object, the counters include all operations performed by all processes that have ever been associated with the job, in addition to all processes currently associated with the job.
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