X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/eaf4bde6e6585874c4d21a355231813fe08040f6..12bb29f5432174ecbd65549bda832d70d34a98ae:/src/msw/utilsexc.cpp

diff --git a/src/msw/utilsexc.cpp b/src/msw/utilsexc.cpp
index e9f7ae28b5..9c959de05e 100644
--- a/src/msw/utilsexc.cpp
+++ b/src/msw/utilsexc.cpp
@@ -82,6 +82,15 @@
 
 #include "wx/msw/private/hiddenwin.h"
 
+// FIXME-VC6: These are not defined in VC6 SDK headers.
+#ifndef BELOW_NORMAL_PRIORITY_CLASS
+    #define BELOW_NORMAL_PRIORITY_CLASS 0x4000
+#endif
+
+#ifndef ABOVE_NORMAL_PRIORITY_CLASS
+    #define ABOVE_NORMAL_PRIORITY_CLASS 0x8000
+#endif
+
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
@@ -853,23 +862,26 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler,
     }
 
     // Translate wxWidgets priority to Windows conventions.
-    unsigned prio = handler->GetPriority();
-    if ( prio <= 20 )
-        dwFlags |= IDLE_PRIORITY_CLASS;
-    else if ( prio <= 40 )
-        dwFlags |= BELOW_NORMAL_PRIORITY_CLASS;
-    else if ( prio <= 60 )
-        dwFlags |= NORMAL_PRIORITY_CLASS;
-    else if ( prio <= 80 )
-        dwFlags |= ABOVE_NORMAL_PRIORITY_CLASS;
-    else if ( prio <= 99 )
-        dwFlags |= HIGH_PRIORITY_CLASS;
-    else if ( prio <= 100 )
-        dwFlags |= REALTIME_PRIORITY_CLASS;
-    else
+    if ( handler )
     {
-        wxFAIL_MSG(wxT("invalid value of thread priority parameter"));
-        dwFlags |= THREAD_PRIORITY_NORMAL;
+        unsigned prio = handler->GetPriority();
+        if ( prio <= 20 )
+            dwFlags |= IDLE_PRIORITY_CLASS;
+        else if ( prio <= 40 )
+            dwFlags |= BELOW_NORMAL_PRIORITY_CLASS;
+        else if ( prio <= 60 )
+            dwFlags |= NORMAL_PRIORITY_CLASS;
+        else if ( prio <= 80 )
+            dwFlags |= ABOVE_NORMAL_PRIORITY_CLASS;
+        else if ( prio <= 99 )
+            dwFlags |= HIGH_PRIORITY_CLASS;
+        else if ( prio <= 100 )
+            dwFlags |= REALTIME_PRIORITY_CLASS;
+        else
+        {
+            wxFAIL_MSG(wxT("invalid value of thread priority parameter"));
+            dwFlags |= NORMAL_PRIORITY_CLASS;
+        }
     }
 
     bool ok = ::CreateProcess