some != NULL checks

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6627 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2000-03-11 19:31:19 +00:00
parent 86f6187197
commit f5ba273ecd
2 changed files with 12 additions and 1 deletions
--- a/src/html/htmprint.cpp
+++ b/src/html/htmprint.cpp
@@ -266,6 +266,13 @@ void wxHtmlPrintout::SetHtmlFile(const wxString& htmlfile)
 {
    wxFileSystem fs;
    wxFSFile *ff = fs.OpenFile(htmlfile);
+    
+    if (ff == NULL)
+    {   
+        wxLogError(htmlfile + _(": file does not exist!"));
+        return;
+    }
+    
    wxInputStream *st = ff -> GetStream();
    char *t = new char[st -> GetSize() + 1];
    st -> Read(t, st -> GetSize());