Fix SMX_GetConfig not returning a result.

This caused SMXConfig to think it was setting both controller configurations even
when only one was connected, which made the UI not refresh correctly if only P2
was connected.

sdk/SMX.h

@@ -79,7 +79,10 @@ extern "C" SMX_API void SMX_SetLights(const char lightsData[864]);
 extern "C" SMX_API void SMX_ReenableAutoLights();
 
 // Get the current controller's configuration.
-extern "C" SMX_API void SMX_GetConfig(int pad, SMXConfig *config);
+//
+// Return true if a configuration is available.  If false is returned, no panel is connected
+// and no data will be set.
+extern "C" SMX_API bool SMX_GetConfig(int pad, SMXConfig *config);
 
 // Update the current controller's configuration.  This doesn't block, and the new configuration will
 // be sent in the background.  SMX_GetConfig will return the new configuration as soon as this call

sdk/Windows/SMX.cpp

@@ -53,7 +53,7 @@ SMX_API void SMX_SetLogCallback(SMXLogCallback callback)
     });
 }
 
-SMX_API void SMX_GetConfig(int pad, SMXConfig *config) { g_pSMX->GetDevice(pad)->GetConfig(*config); }
+SMX_API bool SMX_GetConfig(int pad, SMXConfig *config) { return g_pSMX->GetDevice(pad)->GetConfig(*config); }
 SMX_API void SMX_SetConfig(int pad, const SMXConfig *config) { g_pSMX->GetDevice(pad)->SetConfig(*config); }
 SMX_API void SMX_GetInfo(int pad, SMXInfo *info) { g_pSMX->GetDevice(pad)->GetInfo(*info); }
 SMX_API uint16_t SMX_GetInputState(int pad) { return g_pSMX->GetDevice(pad)->GetInputState(); }