Function Reference

_WinAPI_RegQueryLastWriteTime

Retrieves information about the last write time to the specified registry key

#include <WinAPIReg.au3>
_WinAPI_RegQueryLastWriteTime ( $hKey )

Parameters

$hKey Handle to an open registry key. The key must have been opened with the $KEY_QUERY_VALUE access right.
This handle is returned by the _WinAPI_RegCreateKey() or _WinAPI_RegOpenKey() function.
It can also be one of the following predefined keys:
    $HKEY_CLASSES_ROOT
    $HKEY_CURRENT_CONFIG
    $HKEY_CURRENT_USER
    $HKEY_LOCAL_MACHINE
    $HKEY_PERFORMANCE_DATA
    $HKEY_USERS

Return Value

Success: $tagFILETIME structure that contains the last write time.
Failure: Sets the @error flag to non-zero, @extended flag may contain the system error code.

Related

_WinAPI_RegCreateKey, _WinAPI_RegOpenKey

See Also

Search RegQueryInfoKey in MSDN Library.

Example

Example 1

#include <APIRegConstants.au3>
#include <Date.au3>
#include <Debug.au3>
#include <WinAPIError.au3>
#include <WinAPILocale.au3>
#include <WinAPIReg.au3>

_DebugSetup(Default, True)

Example()

Func Example()
        Local $hKey = _WinAPI_RegOpenKey($HKEY_LOCAL_MACHINE, 'SOFTWARE\AutoIt v3\AutoIt', $KEY_QUERY_VALUE)
        If @error Then
                _DebugReport("! RegOpenKey @error =" & @error & @CRLF & @TAB &_WinAPI_GetErrorMessage(@extended) & @CRLF)
                Exit
        EndIf

        Local $tFT = _WinAPI_RegQueryLastWriteTime($hKey)
        $tFT = _Date_Time_FileTimeToLocalFileTime($tFT)
        Local $tST = _Date_Time_FileTimeToSystemTime($tFT)
        _WinAPI_RegCloseKey($hKey)

        _DebugReport('! Last modified at: ' & _WinAPI_GetDateFormat(0, $tST) & ' ' & _WinAPI_GetTimeFormat(0, $tST) & @CRLF)

EndFunc   ;==>Example

Example First parameter being the full Key string

#include <APIRegConstants.au3>
#include <Date.au3>
#include <Debug.au3>
#include <MsgBoxConstants.au3>
#include <WinAPIError.au3>
#include <WinAPILocale.au3>
#include <WinAPIReg.au3>

_DebugSetup(Default, True)

Example()

Func Example()
        Local $hKey = _WinAPI_RegOpenKey('HKEY_LOCAL_MACHINE\SOFTWARE\AutoIt v3\AutoIt', '', $KEY_QUERY_VALUE)
        If @error Then
                _DebugReport("! RegOpenKey @error =" & @error  & @TAB & _WinAPI_GetErrorMessage(@extended) & @CRLF)
                Exit
        EndIf

        Local $tFT = _WinAPI_RegQueryLastWriteTime($hKey)
        $tFT = _Date_Time_FileTimeToLocalFileTime($tFT)
        Local $tST = _Date_Time_FileTimeToSystemTime($tFT)
        _WinAPI_RegCloseKey($hKey)

        _DebugReport('!Last modified at: ' & _WinAPI_GetDateFormat(0, $tST) & ' ' & _WinAPI_GetTimeFormat(0, $tST) & @CRLF)

EndFunc   ;==>Example

Example 3 Running in X64 Mode (should be run under Full SciTE4AutoIt)

#AutoIt3Wrapper_UseX64=Y

#include <Date.au3>
#include <Debug.au3>
#include <WinAPIError.au3>
#include <WinAPILocale.au3>
#include <WinAPIReg.au3>

_DebugSetup(Default, True)

Example()

Func Example()
        Local $hKey = _WinAPI_RegOpenKey($HKEY_LOCAL_MACHINE, 'SOFTWARE\AutoIt v3\AutoIt', $KEY_QUERY_VALUE)
        If @error Then
                _DebugReport("! RegOpenKey @error = " & @error & @CRLF & @TAB & _WinAPI_GetErrorMessage(@extended) & @CRLF)
                Exit
        EndIf

        Local $tFT = _WinAPI_RegQueryLastWriteTime($hKey)
        $tFT = _Date_Time_FileTimeToLocalFileTime($tFT)
        Local $tST = _Date_Time_FileTimeToSystemTime($tFT)
        _WinAPI_RegCloseKey($hKey)

        _DebugReport('- Last modified at: ' & _WinAPI_GetDateFormat(0, $tST) & ' ' & _WinAPI_GetTimeFormat(0, $tST) & @CRLF)

EndFunc   ;==>Example