Identifies the different modes of image background drawing.
Values:
IG_DSPL_BACKGROUND_NONE | The background is disabled, and ImageGear does not fill this area. |
IG_DSPL_BACKGROUND_UNDER_IMAGE | The image's transparent pixels are drawn with current background color and background brush. The area outside of Displayed Image Rectangle is not affected. |
IG_DSPL_BACKGROUND_BEYOND_IMAGE | The transparent pixels that are outside of Displayed Image Rectangle are drawn with current background color and background brush. |
IG_DSPL_BACKGROUND_EVERYWHERE | The background is under the image and beyond the image. |