ap_set_flag_slot
This sets a field within a structure to either 1 or 0.
Example
AP_INIT_FLAG(
"ModExampleFlag",
ap_set_flag_slot,
(void *)APR_OFFSETOF(mod_example_config_rec, someFlag),
RSRC_CONF,
"Description of this directive"
)
Display
This directive would set the field named someFlag within the struct mod_example_config_rec to either 0 or 1 based on the value specified in the Apache configuration files.