Identifies how an image fits into the device rectangle.

Values:

IG_DSPL_FIT_TO_DEVICE	The image is scaled to fit both the width and height of the device rectangle.
IG_DSPL_FIT_TO_WIDTH	The image is scaled to fit the width of the device rectangle.
IG_DSPL_FIT_TO_HEIGHT	The image is scaled to fit the height of the device rectangle.
IG_DSPL_ACTUAL_SIZE	The device rectangle is ignored, and the image is scaled 1:1.