var device = new Device(DriverType.Hardware, DeviceFlags.None); var texture = Texture2D.FromFile(device, "explosion.png"); While underneath, slimdx.lib was screaming through the kernel, calling CreateDXGIFactory1 and D3D11CreateDevice , and making sure the HRESULT errors bubbled up as proper .NET exceptions. The project was maintained by a handful of heroes: Mike "promit" Popoloski, Josh "the secret weapon" Petrie, and others. They had to reverse-engineer undocumented driver behaviors and rewrite C++ templates into C# generics by hand.
If you were writing high-performance 3D graphics or game tools in C# between 2007 and 2013, there is a name that probably triggers a very specific kind of nostalgia: SlimDX . slimdx.lib
Why? Because C# cannot inherit from C++ COM interfaces. You cannot write class MyDevice : ID3D11Device in C#. The v-table layout is wrong; the calling convention is wrong; the world is wrong. var device = new Device(DriverType
To solve this, slimdx.lib contained hand-rolled, assembly-optimized . It intercepted calls from C#, translated System.String to LPCWSTR , pinned arrays to void* , and most importantly—it handled COM reference counting automatically so that the GC wouldn't accidentally destroy a texture while the GPU was still reading it. If you were writing high-performance 3D graphics or