PixbufAnimationIter.advance

Possibly advances an animation to a new frame. Chooses the frame based on the start time passed to gdk_pixbuf_animation_get_iter().

@current_time would normally come from g_get_current_time(), and must be greater than or equal to the time passed to gdk_pixbuf_animation_get_iter(), and must increase or remain unchanged each time gdk_pixbuf_animation_iter_get_pixbuf() is called. That is, you can't go backward in time; animations only play forward.

As a shortcut, pass %NULL for the current time and g_get_current_time() 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; if %TRUE, you need to call gdk_pixbuf_animation_iter_get_pixbuf() and update the display with the new pixbuf.

class PixbufAnimationIter
bool
advance

Parameters

currentTime TimeVal

current time

Return: %TRUE if the image may need updating

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