Michael McGuffin wrote: > Hello,
Hello Michael, > I'm using cygwin on Vista, Which version? 32-bit or 64-bit? with or without SP1? > and have a problem running C++ code that contains calls to > GLUT routines. I've isolated the problem down to a very simple piece of code, > and have > searched the web without being able to find help. > > Note that I have packages opengl 1.1.0-8, freeglut 2.4.0-1, and gcc-g++ > 3.4.4-3, > and "uname -a" outputs > CYGWIN_NT-6.0 opticon-w 1.5.25(0.156/4/2) 2008-06-12 19:34 i686 Cygwin The standard (and more complete) way to provide that information is to attach the output of cygcheck -s to your problem report. Please note that there is currently a conflict between the opengl package and the libglut-devel package. If you have both, you will have to uninstall one of them. See: http://cygwin.com/ml/cygwin/2008-11/msg00033.html > Here's the problem, as best as I can isolate it. If I create a file called > main.cpp containing > the following code: > > > #include > #include > > > int main( int argc, char *argv[] ) { > if ( argc> 100 ) { > // glutInit( &argc, argv ); > glClear(GL_COLOR_BUFFER_BIT); > } > char str[100]; > printf("Enter a string:"); > scanf("%s",str); > } > and then I compile it with > > g++ -o main main.cpp -lm -lglut32 -lglu32 -lopengl32 This is just plain C, not C++. Can you rename it main.c and recompile with: gcc -o main main.cpp -lglut32 -lglu32 -lopengl32 This would clear-up if it is an issue with the stdc++ library. > and then run the code without any arguments, it runs fine (note that the call > to glClear() > never happens). However, if I uncomment the call to the glutInit() routine > and comment the > glClear() call, > > > #include > #include > > > int main( int argc, char *argv[] ) { > if ( argc> 100 ) { > glutInit( &argc, argv ); > // glClear(GL_COLOR_BUFFER_BIT); > } > char str[100]; > printf("Enter a string:"); > scanf("%s",str); > } > > and compile the same way and run again without any arguments, Windows Vista > gives me> an error message with the following details: > > > Nom d'événement de problème: APPCRASH > Nom de l'application: main.exe > Version de l'application: 0.0.0.0 > Horodatage de l'application: 49103229 > Nom du module par défaut: ntdll.dll > Version du module par défaut: 6.0.6001.18000 > Version du module par défaut: 4791a7a6 > Code de l'exception: c0000022 > Décalage de l'exception: 00009cac > Version du système: 6.0.6001.2.1.0.256.4 > Identificateur de paramètres régionaux: 3084 > etc. Your example compiles and runs fine for me under XP SP3. > > Note, again, that the call to glutInit() never happens. I suspect that simply > linking with GLUT> somehow causes a problem, perhaps in some initialization > of GLUT. > Then try one of the precompiled examples. What happens if you run /usr/lib/glui-examples/example6 ? > Note that I have tried running the main.exe as "administrator" (by right > clicking on > main.exe and choosing the "run as administrator" option from the right-click > menu), and I > get the same error message as when I try running main.exe from a cygwin shell > prompt. > > Any help would be appreciated, thanks. I don't have a Vista machine with Cygwin installed right now. It might take a week before I get one. When I do, I will report back here. Regards, - André Bleau, Cygwin's volunteer OpenGL package maintainer. Please direct any question or comment about the OpenGL package to cygwin at cygwin dot com _________________________________________________________________ -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/