Don't use "Cancel" button in the about dialog of the listctrl sample.

[wxWidgets.git] / src / common / filefn.cpp

diff --git a/src/common/filefn.cpp b/src/common/filefn.cpp
index b1d98afaf8d8a574912d4ff92c50c814b425b1a2..92ce4c1f64f14aedb710213eef89d31349b1452f 100644 (file)
--- a/src/common/filefn.cpp
+++ b/src/common/filefn.cpp
@@ -842,6 +842,9 @@ wxString wxMacFSRefToPath( const FSRef *fsRef , CFStringRef additionalPathCompon
 {
     CFURLRef fullURLRef;
     fullURLRef = CFURLCreateFromFSRef(NULL, fsRef);
+    if ( fullURLRef == NULL)
+        return wxEmptyString;
+    
     if ( additionalPathComponent )
     {
         CFURLRef parentURLRef = fullURLRef ;
@@ -1352,9 +1355,7 @@ wxString wxFindNextFile()
     wxCHECK_MSG( gs_dir, "", "You must call wxFindFirstFile before!" );
 
     wxString result;
-    gs_dir->GetNext(&result);
-
-    if ( result.empty() )
+    if ( !gs_dir->GetNext(&result) || result.empty() )
     {
         wxDELETE(gs_dir);
         return result;
@@ -1571,8 +1572,12 @@ wxString wxGetOSDirectory()
 #ifdef __WXWINCE__
     return wxString(wxT("\\Windows"));
 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
-    wxChar buf[256];
-    GetWindowsDirectory(buf, 256);
+    wxChar buf[MAX_PATH];
+    if ( !GetWindowsDirectory(buf, MAX_PATH) )
+    {
+        wxLogLastError(wxS("GetWindowsDirectory"));
+    }
+
     return wxString(buf);
 #elif defined(__WXMAC__) && wxOSX_USE_CARBON
     return wxMacFindFolderNoSeparator(kOnSystemDisk, 'macs', false);