https://www.systutorials.com/docs/linux/man/docs/linux/man/3-xcb_glx_get_color_table_parameteriv/
xcb_glx_get_color_table_parameteriv - Linux Manuals (3)
RETURN VALUE Returns an xcb_glx_get_color_table_parameteriv_cookie_t. Errors have to be handled when calling the reply function...
get colorlinux manualsxcbglxtable