Hello!
I'm trying to get properties of a file on computer.
(In particular Author and Description), so I wrote this:

var oWMI = GetObject("winmgmts:\\\\.\\root\\CIMV2");
var colFiles = oWMI.ExecQuery("Select * from Win32_FileSpecification WHERE Name='C:\\Windows\\notepad.exe'");

for(var colFile = new Enumerator(colFiles); !colFile.atEnd(); colFile.moveNext()) {

Debug.Trace(colFile.FileSize+" "+colFile.Description);

}

But it doesn't works. Maybe i'm using the wrong function?
I tried also:

     var objFil = CreateObject("DSOFile.OleDocumentProperties");
    objFil.Open("C:\antivir.exe");
    Debug.Trace(objFil.SummaryProperties.Author);

with no results.
Can you help me doing this?
Thanks in advance!

I think you need to use SHGetFileInfoW.

Also, CreateObject and GetObject are not valid JScript functions IIRC. I think they're WScript

They usually have to be replaced with "new ActiveXObject"...

quote:

---

Originally posted by matty
I think you need to use SHGetFileInfoW.

---

quote:

---

Originally posted by Spunky
Also, CreateObject and GetObject are not valid JScript functions IIRC. I think they're WScript

They usually have to be replaced with "new ActiveXObject"...

---

quote:

---

Originally posted by wincy
Thanks! Unfortunatly i'm not sure about i should use that funcion... maybe with Interop.Call("kernel32"... ecc?? Help

---

Made this:

var SHGFI_DISPLAYNAME = "&H200";
var FILE_ATTRIBUTE_NORMAL = "&H80";

var Result = Interop.Call('shell32', 'SHGetFileInfo', 'C:\antivir.exe', FILE_ATTRIBUTE_NORMAL, 0, 0, SHGFI_DISPLAYNAME);

Debug.Trace(Result);


This returns "0" in Debugger. How can i fix it?

You're passing in a null pointer (the 0) to the API call. What you need to do is create a databloc which you can put SHFILEINFO into. Unfortunately, it's been a while since I scripted, so you'll need to read the documentation on this.

Also every \ in JScript has to be escaped so instead of C:\antivir.exe you need to put C:\\antivir.exe

var FILE_ATTRIBUTE_NORMAL = "&H80";
var FFile = "C:\antivir.exe";
var Result = Interop.Call('shell32', 'SHGetFileInfo', FFile, FILE_ATTRIBUTE_NORMAL, '', FFile, "&H800");
Debug.Trace(Result);

Using only one "\" it outputs "1", but i don't think it is correct anyway. How can i use SHFILEINFO then? Here is its structure:

typedef struct _SHFILEINFO {
    HICON hIcon; // i don't have it
    int iIcon; // i don't have it
    DWORD dwAttributes; // needs GetAttributesOf (below)
    TCHAR szDisplayName[MAX_PATH]; // should i put file path here?
    TCHAR szTypeName[80]; // what to put here?
} SHFILEINFO;

GetAttributesOf here:

HRESULT GetAttributesOf(UINT cidl,
    PCUITEMID_CHILD_ARRAY *apidl,
    SFGAOF *rgfInOut
);

what a mess

Ok you need to review a bit about memory allocations.

Javascript code:

---

var szDisplayName = Interop.Allocate(512);
var szTypeName= Interop.Allocate(162);
var SHFILEINFO = Interop.Allocate(18);
 
with ( SHFILEINFO ) {
    WriteDWORD(10, szDisplayName.DataPtr);
    WriteDWORD(14, szTypeName.DataPtr);
    Debug.Trace( 'ShGetFileInfoW : ' + ( Interop.Call('shell32', 'ShGetFileInfoW', 'C:\\antivir.exe', 0x80, SHFILEINFO.DataPtr, Size, 0x800 ) === 0 ? 'Passed' : 'Failed' ) );
}

---

quote:

---

Originally posted by matty
Ok you need to review a bit about memory allocations.

Javascript code:

---

var szDisplayName = Interop.Allocate(512);
var szTypeName= Interop.Allocate(162);
var SHFILEINFO = Interop.Allocate(18);
 
with ( SHFILEINFO ) {
    WriteDWORD(10, szDisplayName.DataPtr);
    WriteDWORD(14, szTypeName.DataPtr);
}
 
Debut.Trace( 'ShGetFileInfoW : ' + Interop.Call('shell32', 'ShGetFileInfoW', 'C:\\antivir.exe', 0x80, SHFILEINFO.DataPtr, 0x800 ) === 0 ? 'Passed' : 'Failed' );

---

And obviously I have no way of testing the above it is just a guideline... but do research a bit more.

---

I fixed it, I was missing the Size parameter.

quote:

---

Originally posted by matty
I fixed it, I was missing the Size parameter.

---

You cannot use a single \ in JScript. I told you that earlier...

Sorry, it was just a try, but the error wasn't that. Did you tested it?

Edit: Ok, it was ShGetFileInfoW instead of SHGetFileInfoW.
Now code seems to be correct, but for some reason Debug says:
"ShGetFileInfoW : Failed"

No I didn't I will have to try when I get home.

I'm sure that file path is correct.
If i don't have to change anything else on code, i really don't know why it doesn't works.
Please answer here if you find errors or a solution.

If i will succeed in making all script works I'll put a thanks to you on it!
Thanks in advance for all!