Disable Alt+Enter fullscreen

src/render/d3d11/render_d3d11.cpp

@@ -497,6 +497,8 @@ r_window_equip(OS_Handle handle)
       os_exit_process(1);
     }
 
+    r_d3d11_state->dxgi_factory->MakeWindowAssociation(hwnd, DXGI_MWA_NO_ALT_ENTER);
+    
     //- rjf: create framebuffer & view
     window->swapchain->GetBuffer(0, __uuidof(ID3D11Texture2D), (void **)(&window->framebuffer));
     r_d3d11_state->device->CreateRenderTargetView(window->framebuffer, 0, &window->framebuffer_rtv);