| 摘要 |
<P>PROBLEM TO BE SOLVED: To print an appropriate alpha-blended image even with a printer not supporting alpha blending processing by appropriately performing alpha blending processing on the printer driver side. <P>SOLUTION: A printing control program causes a computer to execute: a drawing reception step of receiving a page start instruction and drawing instructions from an OS; a generation step of generating a bit map in response to reception of the page start instruction; a transmission processing step of, if the drawing instructions include an alpha channel image, drawing the alpha channel image on the bit map by alpha blending to duplicate alpha-blended transparent areas when drawing an image on the bit map in accordance with the drawing instructions; and a drawing processing step of converting drawing instructions for the alpha channel image to printing commands for drawing the transparent areas when converting the drawing instructions to printing commands. <P>COPYRIGHT: (C)2013,JPO&INPIT |
