#include <lqr.h>
The function update_func is of type LqrProgressFuncUpdate, whose prototype is defined by:
typedef LqrRetVal (*LqrProgressFuncUpdate) (gdouble completion_percentage);
Each time that the function lqr_carver_resize(3) performs a rescale operation (recall that it can perform more than one rescale operation at each call) this function will be called at regular intervale, with the current completion percentage completion_percentage as an argument.
The update step can be set with the function lqr_progress_set_update_step(3).
The return value follows the Liquid Rescale library signalling system.
LqrRetVal(3), lqr_progress_new(3), lqr_progress_set_init(3), lqr_progress_set_end(3), lqr_progress_set_init_width_message(3), lqr_progress_set_init_height_message(3), lqr_progress_set_end_width_message(3), lqr_progress_set_end_height_message(3), lqr_progress_set_update_step(3), lqr_carver_set_progress(3)