windows: don’t popup message box when libjack is not found

diff --git a/libs/ardour/audioengine.cc b/libs/ardour/audioengine.cc
index 731336262293629a4689ee37ff0a2fbf2624fd82..0c8dcc87a9715757ab3638f8460dbaa62fbbc15d 100644 (file)
--- a/libs/ardour/audioengine.cc
+++ b/libs/ardour/audioengine.cc
@@ -693,7 +693,15 @@ AudioEngine::discover_backends ()
 AudioBackendInfo*
 AudioEngine::backend_discover (const string& path)
 {
+#ifdef PLATFORM_WINDOWS
+       // do not show popup dialog (e.g. missing libjack.dll)
+       // win7+ should use SetThreadErrorMode()
+       SetErrorMode(SEM_FAILCRITICALERRORS);
+#endif
        Glib::Module module (path);
+#ifdef PLATFORM_WINDOWS
+       SetErrorMode(0); // reset to system default
+#endif
        AudioBackendInfo* info;
        AudioBackendInfo* (*dfunc)(void);
        void* func = 0;