How to specify the QFileDialog :: getExistingDirectory () method?

Question

Using the method / command:

OpenCreateDirectory() { QString Directory = QFileDialog::getExistingDirectory(this, tr("Choose Or Create Directory"), "/home", QFileDialog::DontResolveSymlinks); } 

I can create a new directory or select an existing one. Is there a way to disable the ability to create a new directory? Also, is there a way to disable the ability to select an existing directory?

More precisely: when I use the method above, a pop-up window appears in which I can create a new directory or open an existing directory. What I want to do is to restrict the method so that I can simply create a new directory without being able to simply open an existing directory or in another case, restrict this method so that I can simply open an existing directory without being able to create a new directory .

Answer 1

You can prevent the creation of a new directory using the following options:

 QFileDialog::DontUseNativeDialog | QFileDialog::ReadOnly | QFileDialog::ShowDirsOnly 

ReadOnly options have no effect if you use your own dialogs, at least on Windows.

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And to disable the selection of an existing directory, you can not.
But you can either add the name of the directory that will be created as a separate parameter, or check that the selected directory is not empty.

Answer 2

Yes, you can add QFileDialog::ReadOnly options when creating a QFileDialog . So create it with:

 QString Directory = QFileDialog::getExistingDirectory(this, tr("Choose Or Create Directory"), "/home", QFileDialog::DontResolveSymlinks | QFileDialog::ReadOnly); 

The Create Directory button in the file dialog still exists, but you cannot create the directory. I have successfully used this feature on Ubuntu.