ODA Vectorization Modules:
WinBitmap - cross-platform vectorization module which use their own software geometry rendering methods to rasterize graphics. Doesn't support geometry caching, not fast, doesn't support shaded modes rendering.
WinGDI - invoke Windows GDI API to render geometry. Windows GDI render geometry using their own software methods. Typically this module used for printing on Windows operating system. Doesn't support shaded modes rendering.
WinOpenGL - cross-platform vectorization module which invokes OpenGL API for rendering geometry using hardware acceleration (available only if GPU drivers installes, elsewhere will render geometry by software methods). Require Opengl32.lib from Windows Platform SDK to link with.
WinDirectX - invoke DirectX libraries for rendering geometry using hardware acceleration. DirectX already available on Windows OS-es since Windows Vista (for older operating systems DirectX runtimes must be installed separately). WinDirectX module require DirectX 9.0 version or greater. Links with Direct3d.lib from Microsoft DirectX SDK.