Question: I have a problem with a menu on the following media query:

```
@media all and (min-device-width: 481px) {
  .flexnav-show {
    margin-top: 0px !important; } }

```

on line 633 in my style sheet. 

When the menu folds down, the div #sidebar (line 426)is still visible under the menu. The #sidebar div should be behind the menu as is the #article div, both #article and #sidebar are contained in the #content div. But the #sidebar div is only one of those two whose position is set to fixed.

What should I alter to set the #sidebar div be beyond the menu and still have its position to be fixed? Could this be a z-index issue? This is the [website link](http://gladahundar01.businesscatalyst.com/Index.html).

Thanks
-Sohail

Answer: 
You are trying to obtain a metadata that is only contained in image files, like JPEG.

I had the same problem and I have not found a solution using standard API. Eventually I solve the problem using the [metadata-extractor](https://drewnoakes.com/code/exif) library that can extract EXIF metadata from image files. The library is really user-friendly, this is the code I used:

```
File file = new File("C:\\myFile.jpg");
Metadata metadata = ImageMetadataReader.readMetadata(file);
Date acquisitionDate = metadata.getDirectory(ExifIFD0Directory.class)
    .getDate(ExifIFD0Directory.TAG_DATETIME);

```
Windows files have 3 file times, all are exposed in the windows API.

Creation Date, Modified Date, Last Accessed Date.

Any other date is an extended property.

There are S/O articles on [reading](https://stackoverflow.com/questions/220097/read-write-extended-file-properties-c) and [setting](https://stackoverflow.com/questions/5337683/how-to-set-extended-file-properties) extended properities via C# using the .net framework.

You should also be able to right click on a file in explorer, select properties from the context menu and see all of the extended properties -- c.f. the MS article [Retrieving Extended File Properties](http://technet.microsoft.com/en-us/library/ee176615.aspx)

ADDED

You mention that these attributes are not copied when the file is copied. This is a very common problem with these extended attribute as many programs do not copy these extended properties when copying a file because they are only loosely coupled to the file and are not copied automatically whenever the file is copied -- as such, they should not rely on them to store important information, and because of this, they are likely to be poorly supported essentially forever -- since programmers won't rely upon them for important information.

Depending upon the target filesystem, there may be no way to copy these extended attributes at all. E.g. drives using FAT32 (common for USB drives).