Man pages matching name xcb_res_query_client_pixmap_bytes in section 3:

xcb_res_query_client_pixmap_bytes.3.en	debian 10 / libxcb-doc
xcb_res_query_client_pixmap_bytes.3.en	debian 11 / libxcb-doc
xcb_res_query_client_pixmap_bytes.3.en	debian 12 / libxcb-doc