You can create Direct3D windows phone app using XAML+Direct3D template, but it has some cons. The most annoying cons is inability to enable Direct3D Debug Layer as the runtime create Direct3D device internally.
Actually with a little trick we can enable the debug layer using visual studio debugger.
- Create new breakpoint at d3d11!D3D11CreateDevice
- Start your program
- After the breakpoint triggered, change the R3 register value to (0x02 or 00000002 )