> For the complete documentation index, see [llms.txt](https://doc.open-tx.org/opentx-2-3-lua-reference-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.open-tx.org/opentx-2-3-lua-reference-guide/part_iii_-_opentx_lua_api_reference/bitmap-functions-less-than-greater-than-luadoc-begin-bitmap.md).

# Bitmap Functions

- [Bitmap.getSize(name)](https://doc.open-tx.org/opentx-2-3-lua-reference-guide/part_iii_-_opentx_lua_api_reference/bitmap-functions-less-than-greater-than-luadoc-begin-bitmap/getsize.md)
- [Bitmap.open(name)](https://doc.open-tx.org/opentx-2-3-lua-reference-guide/part_iii_-_opentx_lua_api_reference/bitmap-functions-less-than-greater-than-luadoc-begin-bitmap/open.md)