diff --git a/modules/twainui/dialog_progress_ui.cpp b/modules/twainui/dialog_progress_ui.cpp
index cbe278ad..692ce081 100644
--- a/modules/twainui/dialog_progress_ui.cpp
+++ b/modules/twainui/dialog_progress_ui.cpp
@@ -1,5 +1,7 @@
 #include "dialog_progress_ui.h"
 #include "ui_dialog_progress_ui.h"
+#include "lang/app_language.h"
+#include <QCloseEvent>
 
 Dialog_progress_ui *Dialog_progress_ui::m_param = nullptr;
 
@@ -7,6 +9,15 @@ Dialog_progress_ui::Dialog_progress_ui(std::function<void (ui_result)> callback,
     QDialog(parent),
     ui(new Ui::Dialog_progress_ui)
 {
+    int cp = lang_get_cur_code_page();
+    if (20127 == cp)
+        m_translator.load(":translation/TwainUI_zh_EN.qm");
+    else
+        m_translator.load(":translation/TwainUI_zh_CN.qm");
+    QCoreApplication::installTranslator(&m_translator);
+
+    setAttribute(Qt::WA_DeleteOnClose, true);
+
     ui->setupUi(this);
 
     m_callback = callback;
@@ -19,6 +30,8 @@ Dialog_progress_ui::Dialog_progress_ui(std::function<void (ui_result)> callback,
 Dialog_progress_ui::~Dialog_progress_ui()
 {
     delete ui;
+
+    QCoreApplication::removeTranslator(&m_translator);
 }
 
 void Dialog_progress_ui::on_pbtn_cancelScan_clicked()
diff --git a/modules/twainui/dialog_progress_ui.h b/modules/twainui/dialog_progress_ui.h
index 06918463..2768cb2f 100644
--- a/modules/twainui/dialog_progress_ui.h
+++ b/modules/twainui/dialog_progress_ui.h
@@ -2,6 +2,7 @@
 #define DIALOG_PROGRESS_UI_H
 
 #include <QDialog>
+#include <qtranslator.h>
 #include "twainui.h"
 
 namespace Ui {
@@ -30,6 +31,7 @@ private:
     static void FuncNotify(int event, void *msg, int flag);
 
 private:
+    QTranslator m_translator;
     Ui::Dialog_progress_ui *ui;
 
     std::function<void (ui_result)> m_callback;
diff --git a/modules/twainui/twainui.cpp b/modules/twainui/twainui.cpp
index d35d06aa..b2be7be6 100644
--- a/modules/twainui/twainui.cpp
+++ b/modules/twainui/twainui.cpp
@@ -11,9 +11,13 @@ extern bool g_ownApplication;
 
 int choose_scanner(const std::vector<DEVQUE> &devs)
 {
+    QWidget* qParent = nullptr;
 #ifdef HG_CMP_MSC
     if (!g_ownApplication)
         g_ownApplication = QMfcApp::pluginInstance(g_hInst);
+    QWinWidget win(nullptr);
+#else
+    qParent = parent;
 #endif
 
     QTranslator translator;
@@ -25,16 +29,10 @@ int choose_scanner(const std::vector<DEVQUE> &devs)
     QCoreApplication::installTranslator(&translator);
 
     Dialog_device_select dlg(devs);
-    if (dlg.exec())
-    {
-        return dlg.getDevId();
-        QCoreApplication::removeTranslator(&translator);
-    }
-    else
-    {
-        return -1;
-        QCoreApplication::removeTranslator(&translator);
-    }
+    dlg.exec();
+    QCoreApplication::removeTranslator(&translator);
+
+    return dlg.getDevId();
 }
 
 char *apply_current_config(const char *dev_name, SANE_Handle device, LPSANEAPI api)
@@ -97,27 +95,18 @@ int show_progress_ui(HWND parent, std::function<void (ui_result)> callback, std:
 #ifdef HG_CMP_MSC
     if (!g_ownApplication)
         g_ownApplication = QMfcApp::pluginInstance(g_hInst);
-    QWinWidget win(parent);
+    QWinWidget *win = new QWinWidget(parent);
     if (nullptr != parent)
     {
-        win.showCentered();
-        qParent = &win;
+        win->showCentered();
+        qParent = win;
     }
 #else
     qParent = parent;
 #endif
 
-    QTranslator translator;
-    int cp = lang_get_cur_code_page();
-    if (20127 == cp)
-        translator.load(":translation/TwainUI_zh_EN.qm");
-    else
-        translator.load(":translation/TwainUI_zh_CN.qm");
-    QCoreApplication::installTranslator(&translator);
-
-    Dialog_progress_ui dlg(callback, notify, qParent);
-    dlg.show();
-    QCoreApplication::removeTranslator(&translator);
+    Dialog_progress_ui *dlg = new Dialog_progress_ui(callback, notify, qParent);
+    dlg->show();
 
     return 0;
 }