Identifies how the image is zoomed in horizontal and vertical directions.

Values:

IG_DSPL_ZOOM_H_MASK	Bit mask for accessing horizontal zoom settings.
IG_DSPL_ZOOM_H_NOT_FIXED	Horizontal zoom factor is not fixed. It is calculated based on other display parameters, such as aspect and fit modes.
IG_DSPL_ZOOM_H_FIXED	Horizontal zoom factor is fixed.
IG_DSPL_ZOOM_V_MASK	Bit mask for accessing vertical zoom settings.
IG_DSPL_ZOOM_V_NOT_FIXED	Vertical zoom factor is not fixed. It is calculated based on other display parameters, such as aspect and fit modes.
IG_DSPL_ZOOM_V_FIXED	Vertical zoom factor is fixed.