Possibly advances an animation to a new frame. Chooses the frame based
on the start time passed to
current.time would normally come from
must be greater than or equal to the time passed to
gdkPixbufAnimationGetIter, and must increase or remain
unchanged each time
called. That is, you can't go backward in time; animations only
As a shortcut, pass
NULL for the current time and
will be invoked on your behalf. So you only need to explicitly pass
current.time if you're doing something odd like playing the animation
at double speed.
If this function returns
FALSE, there's no need to update the animation
display, assuming the display had been rendered prior to advancing;
TRUE, you need to call
gdkAnimationIterGetPixbuf() and update the
display with the new pixbuf.
TRUE if the image may need updating
Derived by RGtkGen from GTK+ documentation
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