idleAddOnce
Adds a function to be called whenever there are no higher priority events pending to the default main loop. The function is given the default idle priority, %G_PRIORITY_DEFAULT_IDLE.
The function will only be called once and then the source will be automatically removed from the main context.
This function otherwise behaves like g_idle_add().
Return
the ID (greater than 0) of the event source
Since
2.74
Parameters
function
function to call