直接上代码：

import win.ui;
import gdip.graphics;
import sys.printer;
import qrencode.bitmap;        
/*DSG{{*/
mainForm = win.form(text="使用sys.printer+gdip打印二维码图片";right=451;bottom=252;parent=...)
mainForm.add(
button={cls="button";text="打印二维码";left=112;top=90;right=214;bottom=130;z=1};
edit={cls="edit";left=111;top=50;right=331;bottom=75;edge=1;z=3};
static={cls="static";text="二维码内容：";left=34;top=56;right=119;bottom=75;transparent=1;z=2}
)
/*}}*/

mainForm.button.oncommand = function(id,event){
        var pdc = sys.printer().createDevice();
        pdc.start(function(hdcPrinter){
                var bmp = qrencode.bitmap(mainForm.edit.text);
                bmp.copyBitmap(180);                        
                var graphics = gdip.graphics(hdcPrinter); 
                graphics.drawImageRect(bmp[["bitmap"]], 0,0, 180, 180);
        });        
}

mainForm.enableDpiScaling();
mainForm.show();

return win.loopMessage();

转自：http://bbs.aardio.com/forum.php?mod=viewthread&tid=22064