I have downloaded the Windows C++ SDK (v 1.1.0) and tried running the command line example, cli.exe. I have a new Theta SC2 connected by USB cable to a Windows 10 machine. The program never detects the camera.
I tried using both the provided executable and one that was build with Visual Studio 2017. In both cases it did not work.
The USB connection allows me to see the the camera as a device and to access the stored photos, so the basic USB connection is not the problem.
I downloaded the DotNet SDK just to compare. The C# sample program ConsoleSampleApplication.exe did work as expected.
The C++ code in the cli example seems pretty straightforward. Does anyone have any ideas why it is not working?