Index: src/ch/UpdaterDlg.cpp
===================================================================
diff -u -N -r4fe995b304ea342b50293f92d3c1992b43b820f7 -r8068e0c351055554340ac9755d1bc846893bf2b8
--- src/ch/UpdaterDlg.cpp	(.../UpdaterDlg.cpp)	(revision 4fe995b304ea342b50293f92d3c1992b43b820f7)
+++ src/ch/UpdaterDlg.cpp	(.../UpdaterDlg.cpp)	(revision 8068e0c351055554340ac9755d1bc846893bf2b8)
@@ -28,7 +28,7 @@
 
 IMPLEMENT_DYNAMIC(CUpdaterDlg, ictranslate::CLanguageDialog)
 
-CUpdaterDlg::CUpdaterDlg(bool bBackgroundMode, CWnd* pParent /*=NULL*/) :
+CUpdaterDlg::CUpdaterDlg(bool bBackgroundMode, CWnd* pParent /*=nullptr*/) :
 	ictranslate::CLanguageDialog(IDD_UPDATER_DIALOG, pParent),
 	m_eLastState(CUpdateChecker::eResult_Undefined),
 	m_bBackgroundMode(bBackgroundMode)
@@ -70,7 +70,7 @@
 	CheckForUpdates();
 
 	// start a timer to display progress
-	SetTimer(UPDATER_TIMER, 50, NULL);
+	SetTimer(UPDATER_TIMER, 50, nullptr);
 
 	return TRUE;  // return TRUE unless you set the focus to a control
 	// EXCEPTION: OCX Property Pages should return FALSE
@@ -221,7 +221,7 @@
 
 void CUpdaterDlg::UpdateIcon(EUpdateType eType)
 {
-	HICON hIcon = NULL;
+	HICON hIcon = nullptr;
 	switch(eType)
 	{
 	case eIcon_Warning: