Peter Nyboer

I'm trying to test if a drive is mounted on an XP machine by checking the count of files/folders. I can do it with the "folder" object in Max, but it's slow. So I started a js that would be simpler and perhaps faster. However, I get strange results when I check the count of, say "D:/" (I don't have a D:/ drive) - the count is 177! Take a look - theres some more comments in the max patch, too.:

--------------begin js "foldercheck.js"--------------

simple example of checking if a folder is empty

--------------end js "foldercheck.js"--------------

--------------begin MAX patch--------------

--------------end MAX patch--------------

I'm trying to test if a drive is mounted on an XP machine by checking the count of files/folders.  I can do it with the "folder" object in Max, but it's slow.  So I started a js that would be simpler and perhaps faster.  However, I get strange results when I check the count of, say "D:/" (I don't have a D:/ drive) - the count is 177!  Take a look - theres some more comments in the max patch, too.:

--------------begin js "foldercheck.js"--------------
/*

function path(v)
{
	var f = new Folder(v);

	outlet(0,"path: "+f.pathname);
	outlet(0,"count: "+f.count);
	f.reset();
	f.close();
}

--------------end js  "foldercheck.js"--------------

--------------end MAX patch--------------


folder-and-non-existent-drives-folders-on-xp

This is known and has been fixed for the next MaxMSP unpdate for Windows.

Here is a copy of the jsfolder object for you to test for us until the release .

https://cycling74.com/download/jsfolder.zip

Great! This is giving counts of 0 for non-existent drives. Thanks for 

here's a (slow) way of using js for checking for valid drives on a 

function path(v) //input a path, outputs the path and the count

function drives() //just send the message "drives" and you'll get the 

        var check = letters[i]+":/";

        var f = new Folder(check);

            outlet(0, f.pathname);

Great!  This is giving counts of 0 for non-existent drives.  Thanks for 
the update.

here's a (slow) way of using js for checking for valid drives on a 
windows system:

var letters = new Array() ;
letters[0] = "A" ;
letters[1] = "B" ;
letters[2] = "C" ;
letters[3] = "D" ;
letters[4] = "E" ;
letters[5] = "F" ;
letters[6] = "G" ;
letters[7] = "H" ;
letters[8] = "I" ;
letters[9] = "J" ;
letters[10] = "K" ;
letters[11] = "L" ;
letters[12] = "M" ;
letters[13] = "N" ;
letters[14] = "O" ;
letters[15] = "P" ;
letters[16] = "Q" ;
letters[17] = "R" ;
letters[18] = "S" ;
letters[19] = "T" ;
letters[20] = "U" ;
letters[21] = "V" ;
letters[22] = "W" ;
letters[23] = "X" ;
letters[24] = "Y" ;
letters[25] = "Z" ;

function path(v) //input a path, outputs the path and the count
{
	var f = new Folder(v);

function drives() //just send the message "drives" and you'll get the 
drives that have something in them

{
	for (var i=0;i
		var check = letters[i]+":/";
		var f = new Folder(check);
		if (f.count > 0) {
			outlet(0, f.pathname);
		}
	}
}


Folder() and non-existent drives & folders on XP