[fixed] RunWait("filename") limitation

[taz742]

Is there a maximum limitation for filename's lenght parameter in the RunWait() function?

RunWait ( "filename" [, "workingdir" [, flag]] )

Edited April 2, 2008 by taz742

[martin]

Is there a maximum limitation for filename's lenght parameter in the RunWait() function?

RunWait ( "filename" [, "workingdir" [, flag]] )

I would guess it is set by the environmental variable MAX_PATH which I think is 260 characters. I would expect that it is limited by windows not by AutoIt.

[weaponx]

The Windows limitation for filenames is 255 characters I thought. I was only able to write 214 characters to a filename (excluding the extension). This code will attempt to create the highest possible filename and show you the result:

$file = ""
For $X = 1 to 300
    $file &= "A"
    
    $result = FileWrite($file & ".txt", "TEST")
    
    If $result = 0 Then
        MsgBox(0,"","FAIL at " & $X & " characters")
        Exit
    EndIf
    
    FileDelete($file & ".txt")
Next

[taz742]

Thanks for replies but this isn't what i'm waiting.

I know the filefullpath limitation for windows is 255 characters.

@weaponx: with your script located in "c:\" it failed at 252 so 251 + 4 ('.txt' lenght) = 255. this confirm the 255 characters limitation for filepath.

I use RunWait() to run executable program with multi parameters and by this way the lenght of my "filename" parameter is more than 255.

I've test this lenght and AutoIt failed to RunWait with more than 4096 characters' lenght.

So i think this AutoIt limitation is define by CMDLINEPARAM_MAXLEN = 4096 in the help

Edited April 2, 2008 by taz742