FileDialog locks drive

krobinson

I noticed something today that it causing an issue for me. I think it is by design, but I am not sure how to work around it. I am using a FileDialog to select a folder. Once the folder is selected I dont really need it until another selection is required, but it is a Qml element so it sticks around. The problem is that it grabs a handle to the folder and hangs onto it. I found the process in Process Explorer and verified that the handle stays open. I force closed the handle using Process Explorer and got the warning below.

QFileSystemWatcher: FindNextChangeNotification failed for "G:\"  (The handle is invalid.)

So it seems that its creating a QFileSystemWatcher and watching for changes. This is an issue for me because I need to modify the drive and it is blocking it. Is there any way to turn this off. Can I just create a FileDialog on the fly and dispose of it when I am done? It doesn't seem like I can manually change the location without user interaction either. Any ideas would be appreciated. I will include my demo project qml file for reference as well.

import QtQuick 2.4
import QtQuick.Controls 1.3
import QtQuick.Window 2.2
import QtQuick.Dialogs 1.2

ApplicationWindow {
    title: qsTr("Hello World")
    width: 640
    height: 480
    visible: true

    FileDialog
    {
        id: folderDialog
        title: qsTr("Please choose a folder")
        selectFolder: true
        
        onAccepted:
        {
            close();
        }
        onRejected:
        {
            close();
        }
    }
    Button
    {
        text: "Test"
        onClicked:
        {
            folderDialog.open();
        }
    }
}