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#include <WinAPI.au3> $text = FileReadLastChars("C:\Program Files\AutoIt3\Include\Array.au3", 1024) MsgBox(0, 'FileReadLastChars', $text) Func FileReadLastChars($sFile, $nChars) Local $nBytes $tBuffer = DLLStructCreate("char["&$nChars&"]") $hFile = _WinAPI_CreateFile($sFile, 2, 2) ; open for read _WinAPI_SetFilePointer($hFile, -1 * $nChars, 2) ; from end _WinAPI_ReadFile($hFile, DLLStructGetPtr($tBuffer), $nChars, $nBytes) _WinAPI_CloseHandle($hFile) Return DLLStructGetData($tBuffer, 1) EndFunc ; included as standard UDF since AutoIt 220.127.116.11 version Func _WinAPI_SetFilePointer($hFile, $iPos, $iMethod = 0) $aResult = DllCall( "kernel32.dll", "long", "SetFilePointer", "hwnd", $hFile, "long", $iPos, "long_ptr", 0, "long", $iMethod) If @error Then Return SetError(1, 0, -1) If $aResult = -1 Then Return SetError(2, 0, -1) ; $INVALID_SET_FILE_POINTER = -1 Return $aResult EndFunc ;==>_WinAPI_SetFilePointer Here is my topic about _WinAPI_SetFilePointer()
EDIT: simpler version compatible with latest AutoIt
$text = FileReadLastChars("C:\Program Files\AutoIt3\Include\Array.au3", 1024) MsgBox(0, 'FileReadLastChars', $text) Func FileReadLastChars($sFile , $nChars) $hFile = FileOpen($sFile, 0) ; open for read FileSetPos($hFile, -1 * $nChars, 2) ; from end $sRet = FileRead($hFile) FileClose($hFile) Return $sRet EndFunc
Can files be read from the web or the cloud?
I am trying to read this file but get the file open error.
#include <FileConstants.au3> #include <MsgBoxConstants.au3> ;Assign the file path to a variable Local $sFilePath = "C:\Automation\test.txt" Local $sFilePathAzure ="https://batlgroupimages.blob.core.windows.net/files/test.txt" Local $nLineNumberToLookFor = 0 ;Open the file test.txt in append mode. ;If the folder C:\Automation does not exist, it will be created. Local $hFileOpen = FileOpen($sFilePathAzure, $FO_APPEND + $FO_CREATEPATH) ;Display a message box in case of any errors. If $hFileOpen = -1 Then MsgBox($MB_SYSTEMMODAL, "", "An error occurred while opening the file.") EndIf ;Set the file position to beginning for reading the data from the beginning of the file. FileSetPos($hFileOpen, 0, $FILE_BEGIN) ;Read the data from the file using the handle returned by FileOpen ;Local $sFileRead = FileRead($hFileOpen) ;Read the 2nd line of data from the file using the handle returned by FileOpen Local $sFileReadLine = FileReadLine ($hFileOpen,2) ;Close the handle returned by FileOpen. FileClose($hFileOpen)
i have searched allot about an function that can read the INI file as a string
i mean function to read the ini files from string and not from the file directly.
i finally found an UDF that do what i want
but unfortunately all the functions work, but the function that i want it not working.
this is the udf
the function that i need is _IniReadFromString
this is the function
Func _IniReadFromString($szInput, $szSection, $szKey, $Default) $szInput = StringStripCR($szInput) Local $aRegMl = StringRegExp($szInput, "\[" & __StringEscapeRegExp($szSection) & "\]\n+(?:[^\.*?=.*\n)*" & __StringEscapeRegExp($szKey) & "=(.*)\n?(", 3) If @error Then Return SetError(1, 0, $Default) ; key not found Return $aRegMl EndFunc;==>_IniReadFromString
i hope that any one can help me
thank you in advance
Hello AutoIt Scriptwriters!
I want to read https based site that it's address is: Soft98 (https://soft98.ir/)
I've tried with "_INetGetSource", "BinaryToString(InetRead)" and "InetRead" but none of them don't help me
How can i get this site html source code without opening IE Windows?
(Edited from original. Please note that I AM NOT AN AUTOIT EXPERT. I write code using Autoit frequently but I am no expert, especially when it comes to I/O. So any remarks that start with "Why did you..." can be answered by referring to the first sentence. This project was done in Autoit because of an interface I built to display the data.)
Attached is a program and ascii input file I wrote to read stock price data, convert it to binary and then read it back into the program in binary. The goal was to show increased performance for reading the files in binary and provide a demo on how to read/write binary for int32, int64, double and strings for anyone who might find it helpful. The results on my PC show the following:
Time to read ascii file only: 456.981951167202
Ascii read & process time: 6061.83075631701
Binary write file time: 14787.9184635239
Time just to read binary file: 42.418867292311
Binary read and process time: 4515.16129830537
A couple things to note:
1) The 32 MB ascii file took 10x longer to read than the 15 MB binary file. Not entirely sure why. Both were read into a buffer.
2) The Binary write takes a long time but I made no effort to optimize this because the plan was to write this file one time only so I don't mind if it takes longer to write this file. I care much more about how long it takes to read the file because I will be reading it many times.
3) There was a modest gain in converting the ascii file to binary in terms of file size and reading speed.
So big picture... not sure it's worth the effort to convert the files to binary even though most of the data is numerical data in the binary file. That was actually surprising as I expected there would be more of a difference. Any ideas on how to get the binary data to read at a faster rate would be great.