[Àû¿ë´ë»ó: 0.74_SVN_new, DOSBox-x]

If set, doublescanned output emits two scanlines for each source line, in the same manner as the actual VGA output (320x200 is rendered as 640x400 for example).

If clear, doublescanned output is rendered at the native source resolution (320x200 as 320x200).

This affects the raster PRIOR to the software or hardware scalers. Choose wisely.