--- linuxsampler/trunk/src/network/lscpserver.cpp	2005/05/24 19:20:20	579
+++ linuxsampler/trunk/src/network/lscpserver.cpp	2005/06/08 23:16:13	620
@@ -660,6 +660,7 @@
         if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
         EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
         if (!pEngineChannel) throw LinuxSamplerException("No engine loaded on sampler channel");
+        if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
 	result.Add(pEngineChannel->GetEngine()->VoiceCount());
     }
     catch (LinuxSamplerException e) {
@@ -680,6 +681,7 @@
         if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
         EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
         if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
+        if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
         result.Add(pEngineChannel->GetEngine()->DiskStreamCount());
     }
     catch (LinuxSamplerException e) {
@@ -700,6 +702,7 @@
         if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
         EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
         if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
+        if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
         if (!pEngineChannel->GetEngine()->DiskStreamSupported()) result.Add("NA");
         else {
             switch (ResponseType) {