diff --git a/DSView/pv/config/appconfig.cpp b/DSView/pv/config/appconfig.cpp
index c0431ae7..41c190aa 100644
--- a/DSView/pv/config/appconfig.cpp
+++ b/DSView/pv/config/appconfig.cpp
@@ -299,16 +299,6 @@ std::string AppConfig::GetProtocolFormat(const std::string &protocolName)
 }
 
 //-------------api
-QString GetDirectoryName(QString path)
-{
-    int lstdex = path.lastIndexOf('/');
-    if (lstdex != -1)
-    {
-        return path.left(lstdex);
-    }
-    return path;
-}
-
 QString GetIconPath()
 {   
     QString style = AppConfig::Instance()._frameOptions.style;
diff --git a/DSView/pv/config/appconfig.h b/DSView/pv/config/appconfig.h
index 88a168df..bf300a97 100644
--- a/DSView/pv/config/appconfig.h
+++ b/DSView/pv/config/appconfig.h
@@ -35,8 +35,6 @@
 #define APP_NAME  "DSView"
   
 //--------------------api---
-
-QString GetDirectoryName(QString path);
 QString GetIconPath();
 QString GetAppDataDir();
 QString GetResourceDir();
diff --git a/DSView/pv/dialogs/protocolexp.cpp b/DSView/pv/dialogs/protocolexp.cpp
index 9546c0ff..739467ad 100755
--- a/DSView/pv/dialogs/protocolexp.cpp
+++ b/DSView/pv/dialogs/protocolexp.cpp
@@ -39,6 +39,7 @@
 #include "../config/appconfig.h"
 #include "../dsvdef.h"
 #include "../utility/encoding.h"
+#include "../utility/path.h"
 
 using namespace boost;
 using namespace std;
@@ -140,7 +141,7 @@ void ProtocolExp::accept()
             if(f.suffix().compare(ext))
                 file_name+=tr(".")+ext;
 
-            QString fname = GetDirectoryName(file_name);
+            QString fname = path::GetDirectoryName(file_name);
             if (fname != app._userHistory.openDir)
             {
                 app._userHistory.protocolExportPath = fname;
diff --git a/DSView/pv/mainwindow.cpp b/DSView/pv/mainwindow.cpp
index 54ce31c2..ec6cacd6 100644
--- a/DSView/pv/mainwindow.cpp
+++ b/DSView/pv/mainwindow.cpp
@@ -94,6 +94,7 @@
 #include "dsvdef.h"
 #include "appcontrol.h"
 #include  "utility/encoding.h"
+#include "utility/path.h"
 
 #define BASE_SESSION_VERSION 2
   
@@ -920,7 +921,7 @@ void MainWindow::on_screenShot()
 
         pixmap.save(fileName, suffix.toLatin1());
  
-        fileName = GetDirectoryName(fileName);
+        fileName = path::GetDirectoryName(fileName);
 
         if (app._userHistory.screenShotPath != fileName){
             app._userHistory.screenShotPath = fileName;
diff --git a/DSView/pv/storesession.cpp b/DSView/pv/storesession.cpp
index a772cbd0..dde4c7db 100755
--- a/DSView/pv/storesession.cpp
+++ b/DSView/pv/storesession.cpp
@@ -1189,7 +1189,7 @@ QString StoreSession::MakeSaveFile(bool bDlg)
             return ""; //no select file
         }
 
-        QString _dir_path = GetDirectoryName(default_name);
+        QString _dir_path = path::GetDirectoryName(default_name);
 
         if (_dir_path != app._userHistory.saveDir)
         {
@@ -1261,7 +1261,7 @@ QString StoreSession::MakeExportFile(bool bDlg)
         }
 
         bool bChange = false;
-        QString _dir_path = GetDirectoryName(default_name);
+        QString _dir_path = path::GetDirectoryName(default_name);
         if (_dir_path != app._userHistory.exportDir)
         {
             app._userHistory.exportDir = _dir_path;
diff --git a/DSView/pv/toolbars/filebar.cpp b/DSView/pv/toolbars/filebar.cpp
index eef34b9d..0803a251 100755
--- a/DSView/pv/toolbars/filebar.cpp
+++ b/DSView/pv/toolbars/filebar.cpp
@@ -29,6 +29,7 @@
 #include "../device/devinst.h" 
 #include "../ui/msgbox.h"
 #include "../config/appconfig.h"
+#include "../utility/path.h"
 
 namespace pv {
 namespace toolbars {
@@ -143,7 +144,7 @@ void FileBar::on_actionOpen_triggered()
         tr("DSView Data (*.dsl)"));
 
     if (!file_name.isEmpty()) { 
-        QString fname = GetDirectoryName(file_name);
+        QString fname = path::GetDirectoryName(file_name);
         if (fname != app._userHistory.openDir){
             app._userHistory.openDir = fname;
             app.SaveHistory();
@@ -180,7 +181,7 @@ void FileBar::on_actionLoad_triggered()
         tr("DSView Session (*.dsc)"));
 
     if (!file_name.isEmpty()) {
-        QString fname = GetDirectoryName(file_name);
+        QString fname = path::GetDirectoryName(file_name);
         if (fname != app._userHistory.sessionDir){
             app._userHistory.sessionDir = fname;
             app.SaveHistory();
@@ -229,7 +230,7 @@ void FileBar::on_actionStore_triggered()
         if(f.suffix().compare("dsc"))
             file_name.append(tr(".dsc"));
 
-        QString fname = GetDirectoryName(file_name);
+        QString fname = path::GetDirectoryName(file_name);
         if (fname != app._userHistory.sessionDir){
             app._userHistory.sessionDir = fname;
             app.SaveHistory();
diff --git a/DSView/pv/utility/path.cpp b/DSView/pv/utility/path.cpp
index 1cce527c..82881628 100644
--- a/DSView/pv/utility/path.cpp
+++ b/DSView/pv/utility/path.cpp
@@ -38,4 +38,14 @@ namespace pv::path
 #endif
         return fileName.toUtf8().toStdString();
     }
+
+    QString GetDirectoryName(QString path)
+    {
+        int lstdex = path.lastIndexOf('/');
+        if (lstdex != -1)
+        {
+            return path.left(lstdex);
+        }
+        return path;
+    }
 }
\ No newline at end of file
diff --git a/DSView/pv/utility/path.h b/DSView/pv/utility/path.h
index 2f5729ec..4d42a6d9 100644
--- a/DSView/pv/utility/path.h
+++ b/DSView/pv/utility/path.h
@@ -28,6 +28,8 @@
 namespace pv::path
 {
     std::string ConvertPath(QString fileName);
+
+    QString GetDirectoryName(QString path);
 }
  
 #endif
\ No newline at end of file