Qt: ensure to call destructor when closing a few QDialog windows

Change-Id: I10d2a610e852fdc2f38b84e561f04783af0d612e
Reviewed-on: https://code.wireshark.org/review/13453
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
Reviewed-by: Anders Broman <a.broman58@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/ui/qt/about_dialog.cpp b/ui/qt/about_dialog.cpp
index 83bbdf8004..84cbcee10f 100644
--- a/ui/qt/about_dialog.cpp
+++ b/ui/qt/about_dialog.cpp
@@ -148,6 +148,7 @@ AboutDialog::AboutDialog(QWidget *parent) :
     ui(new Ui::AboutDialog)
 {
     ui->setupUi(this);
+    setAttribute(Qt::WA_DeleteOnClose, true);
     QFile f_authors;
     QFile f_license;
     const char *constpath;