X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FMain%2Ffg_os_osgviewer.cxx;h=e2556f5b2ea12e5c2e274c4b0cfe043c7202a33e;hb=38226af24ec01e8f0a20d7fd73ef838a69f6ef25;hp=a03cc747e859f7645853947f08b473e8d201f2cd;hpb=fdbfd6fd0b789eecf2c532d048a75d15f8d35ad8;p=flightgear.git

diff --git a/src/Main/fg_os_osgviewer.cxx b/src/Main/fg_os_osgviewer.cxx
index a03cc747e..e2556f5b2 100644
--- a/src/Main/fg_os_osgviewer.cxx
+++ b/src/Main/fg_os_osgviewer.cxx
@@ -46,7 +46,6 @@
 #include <osgViewer/ViewerEventHandlers>
 #include <osgViewer/Viewer>
 
-#include <Include/general.hxx>
 #include <Scenery/scenery.hxx>
 #include "fg_os.hxx"
 #include "fg_props.hxx"
@@ -103,7 +102,7 @@ static osg::ref_ptr<osg::Camera> mainCamera;
 
 static void setStereoMode( const char * mode )
 {
-    DisplaySettings::StereoMode stereoMode;
+    DisplaySettings::StereoMode stereoMode = DisplaySettings::QUAD_BUFFER;
     bool stereoOn = true;
 
     if (strcmp(mode,"QUAD_BUFFER")==0)
@@ -271,7 +270,7 @@ void fgOSExit(int code)
     status = code;
 }
 
-void fgOSMainLoop()
+int fgOSMainLoop()
 {
     ref_ptr<FGEventHandler> manipulator
         = globals->get_renderer()->getEventHandler();
@@ -287,11 +286,16 @@ void fgOSMainLoop()
             (*drawFunc)();
         viewer->frame();
     }
-    fgExit(status);
+    
+    return status;
 }
 
 int fgGetKeyModifiers()
 {
+    if (!globals->get_renderer()) { // happens during shutdown
+      return 0;
+    }
+    
     return globals->get_renderer()->getEventHandler()->getCurrentModifiers();
 }