Nicest Resolution for DirectWrite

{
    // Last week I posted the point where I was stumped working on getting a CPU-side bitmap
    // from DirectWrite rendered text.  At that time the most promising route I had found was through
    // rendering to a D2D render target, backing that render target with a D3D texture, which would then
    // let me get to the bits.  I did solve that version, thanks to help from @rygorous.  It took a lot
    // of code and brought in a lot of dependencies but it worked...
    //
    // Then @mmozeiko sent me a code snippet that showed how to interface with GDI.  His code was simpler than
    // what I was doing and had no extra dependencies.  I stripped out just the very little part that I needed,
    // avoiding all the sub-classing towards into which COM style interfaces generally drive you.
    //
    // This is the result. -Allen

    // ... Get the factory, font face, whatever else you need ...

    // Magic sauce that I was missing when I made the last post:
    // DWrite GDI Interop
    IDWriteGdiInterop *dwrite_gdi_interop = 0;
    error = dwrite_factory->GetGdiInterop(&dwrite_gdi_interop);

    // DWrite Bitmap Render Target
    int32_t width = 200;
    int32_t height = 200;
    IDWriteBitmapRenderTarget *render_target = 0;
    error = dwrite_gdi_interop->CreateBitmapRenderTarget(0, width, height, &render_target);

    // Render Glyph
    int32_t index = 10;
    RECT bounding_box = {0};
    DWRITE_GLYPH_RUN glyph_run = {0};
    glyph_run.fontFace = font_face;
    glyph_run.fontEmSize = point_size*96.f/72.f;
    glyph_run.glyphCount = 1;
    glyph_run.glyphIndices = &index;
    error = render_target->DrawGlyphRun(100.f, 100.f,
                                        DWRITE_MEASURING_MODE_NATURAL, &glyph_run, rendering_params, RGB(255, 255, 255),
                                        &bounding_box);
    DWCheck(error);

    // Then read it through good ol' GDI
    HDC dc = render_target->GetMemoryDC();
    HBITMAP bitmap = (HBITMAP)GetCurrentObject(dc, OBJ_BITMAP);
    DIBSECTION dib = {0};
    GetObject(bitmap, sizeof(dib), &dib);

    // ... do whatever you want with your new bitmap ...
}