area_updated

Description:

public virtual signal void area_updated (int x, int y, int width, int height)

This signal is emitted when a significant area of the image being loaded has been updated.

Normally it means that a complete scanline has been read in, but it could be a different area as well.

Applications can use this signal to know when to repaint areas of an image that is being loaded.

x	X offset of upper-left corner of the updated area.
y	Y offset of upper-left corner of the updated area.
width	Width of updated area.
height	Height of updated area.