SetFullscreenState not returning

When I call the IDXGISwapChain::SetFullscreenState method, it does not return. The window goes fullscreen, but accepts no further input. A println!() put right after never fires. I am assuming there is some sort of deadlock happening behind the scenes, but the docs don't go into what all it locks.

• Does SetFullscreenState perform any locking?

• If so, what does it lock?

• What other issues could cause SetFullscreenState to never return?

I am using Rust 1.44.1 with winapi 0.3.9. I am passing minwindef::TRUE and a null pointer as arguments (passing minwindef::FALSE returns, but does the opposite of what I want). I am using the following options in the swapchain desc:

desc.BufferCount = 1;
desc.BufferDesc.Width = width;
desc.BufferDesc.Height = height;
desc.BufferDesc.Format = dxgiformat::DXGI_FORMAT_R8G8B8A8_UNORM;
desc.BufferDesc.RefreshRate.Numerator = 60;
desc.BufferDesc.RefreshRate.Denominator = 1;
desc.BufferUsage = dxgitype::DXGI_USAGE_RENDER_TARGET_OUTPUT;
desc.OutputWindow = *hwnd.inner();
desc.SampleDesc.Count = 1;
desc.SampleDesc.Quality = 0;
desc.Flags = dxgi::DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
desc.Windowed = minwindef::TRUE;