diff --git a/Completeness-CategorySurface.md b/Completeness-CategorySurface.md
index 5d47488..b5f64b0 100644
--- a/Completeness-CategorySurface.md
+++ b/Completeness-CategorySurface.md
@@ -2,34 +2,34 @@
 
 | ☑ | Function                       | libSDL2pp method(s) / Notes |
 |:-:|--------------------------------|-----------------------------|
-| ☐ | SDL_BlitScaled                 | |
-| ☐ | SDL_BlitSurface                | |
+| ☑ | SDL_BlitScaled                 | Surface::BlitScaled() |
+| ☑ | SDL_BlitSurface                | Surface::Blit() |
 | ☐ | SDL_ConvertPixels              | |
-| ☐ | SDL_ConvertSurface             | |
-| ☐ | SDL_ConvertSurfaceFormat       | |
+| ☑ | SDL_ConvertSurface             | Surface::Convert() |
+| ☑ | SDL_ConvertSurfaceFormat       | Surface::Convert() |
 | ☑ | SDL_CreateRGBSurface           | Surface::Surface() |
 | ☑ | SDL_CreateRGBSurfaceFrom       | Surface::Surface() |
-| ☐ | SDL_FillRect                   | |
-| ☐ | SDL_FillRects                  | |
+| ☑ | SDL_FillRect                   | Surface::FillRect() |
+| ☑ | SDL_FillRects                  | Surface::FillRects() |
 | ☑ | SDL_FreeSurface                | Surface::~Surface() |
-| ☐ | SDL_GetClipRect                | |
-| ☐ | SDL_GetColorKey                | |
-| ☐ | SDL_GetSurfaceAlphaMod         | |
-| ☐ | SDL_GetSurfaceBlendMode        | |
-| ☐ | SDL_GetSurfaceColorMod         | |
+| ☑ | SDL_GetClipRect                | Surface::GetClipRect() |
+| ☑ | SDL_GetColorKey                | Surface::GetColorKey() |
+| ☑ | SDL_GetSurfaceAlphaMod         | Surface::GetAlphaMod() |
+| ☑ | SDL_GetSurfaceBlendMode        | Surface::GetBlendMode() |
+| ☑ | SDL_GetSurfaceColorMod         | Surface::GetColorMod() |
 | ☐ | SDL_LoadBMP                    | |
 | ☐ | SDL_LoadBMP_RW                 | |
-| ☐ | SDL_LockSurface                | |
-| ☐ | SDL_LowerBlit                  | |
-| ☐ | SDL_LowerBlitScaled            | |
-| ☐ | SDL_MUSTLOCK                   | |
+| ☑ | SDL_LockSurface                | Surface::Lock(), Surface::LockHandle::LockHandle() |
+| ☐ | SDL_LowerBlit                  | "semi-private" |
+| ☐ | SDL_LowerBlitScaled            | "semi-private" |
+| ☑ | SDL_MUSTLOCK                   | Surface::LockHandle::* |
 | ☐ | SDL_SaveBMP                    | |
 | ☐ | SDL_SaveBMP_RW                 | |
-| ☐ | SDL_SetClipRect                | |
-| ☐ | SDL_SetColorKey                | |
-| ☐ | SDL_SetSurfaceAlphaMod         | |
-| ☐ | SDL_SetSurfaceBlendMode        | |
-| ☐ | SDL_SetSurfaceColorMod         | |
+| ☑ | SDL_SetClipRect                | Surface::SetClipRect() |
+| ☑ | SDL_SetColorKey                | Surface::SetColorKey() |
+| ☑ | SDL_SetSurfaceAlphaMod         | Surface::SetAlphaMod() |
+| ☑ | SDL_SetSurfaceBlendMode        | Surface::SetBlendMode() |
+| ☑ | SDL_SetSurfaceColorMod         | Surface::SetColorMod() |
 | ☐ | SDL_SetSurfacePalette          | |
-| ☐ | SDL_SetSurfaceRLE              | |
-| ☐ | SDL_UnlockSurface              | |
+| ☑ | SDL_SetSurfaceRLE              | Surface::SetRLE() |
+| ☑ | SDL_UnlockSurface              | Surface::LockHandle::~LockHandle() |