Removes the visual marker from a particular day. Note that this function always returns TRUE, and you should ignore the return value. In GTK+ 3, this function will not return a value.
the day number to unmark between 1 and 31.
TRUE, always
See Implementation
Removes the visual marker from a particular day. Note that this function always returns TRUE, and you should ignore the return value. In GTK+ 3, this function will not return a value.