gtk:entry-progress-pulse (entry)

entry -- a gtk:entry widget

Indicates that some progress is made, but you do not know how much. Causes the progress indicator of the entry to enter "activity mode", where a block bounces back and forth. Each call to the gtk:entry-progress-pulse function causes the block to move by a little bit. The amount of movement per pulse is determined by the gtk:entry-progress-pulse-step function.