Retrieving a file's icon

[sbeltz]

Hello,

Is there any way to retrieve the icon of a file given the file's pathname? In particular, I am attempting to retrieve an application's icon.

I have been able to do this for Windows using SHGetFileInfo(), but my application needs to be cross-platform and this (obviously) won't work for Mac or Linux.

I have also tried the following:

QString file = "C:\application.exe";
QFileInfo fileInfo( file );
QFileIconProvider fileIconProvider;
QIcon appIcon = fileIconProvider.icon( fileInfo );

QString file = "C:\application.exe";
QFileInfo fileInfo( file );
QFileIconProvider fileIconProvider;
QIcon appIcon = fileIconProvider.icon( fileInfo );

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However this always returns the system's default icon for folders and files rather than the file's specific icon.

Any suggestions or thoughts on how I could do this would be most appreciated.
(I'm using Qt 4.2.2)

Thanks