Krasimir Angelov-2 wrote:
Hi Matthew,
On Windows stdout/stderr/stdin exists only when your application is using the Console OS subsystem. All GUI applications doesn't have console window and they don't have stdout/stderr/stdin. When you are building DLLs then the subsystem is determined from the type of the application that is loading your DLL. In your particular case the DLL is loaded from Matlab which is definitely a GUI application. When you are trying to load the DLL from other C application then probably it is Console application and all print statements simply works. The solution that you can use is to replace all your print statements with Debug.Trace.trace or Debug.Trace.putTraceMsg. When you are using these functions from Console application then the output is redirected to stderr but when they are used from GUI application then the output goes to the debugger. You can see the output in the Debug pane in the Visual Studio IDE while you are running MatLab from the debugger.
Cheers, Krasimir
Thanks for the suggestion. Unfortunately I use a lot of formatted print statements both in Haskell and in C. I was hoping for a quick fix. I can, however redirect some of my output to a file so this will help. -- View this message in context: http://www.nabble.com/How-can-I-redirect-stdout--tf2358554.html#a6607349 Sent from the Haskell - Haskell-Cafe mailing list archive at Nabble.com.