基于WORD文档的防篡改水印系统设计与实现(13)
fontwrong.SetColor(255);
sel.MoveRight(COleVariant((short)1),COleVariant((short)(tempwrong)),COleVariant((short)1));
sel.MoveRight(COleVariant((short)1),COleVariant((short)1),COleVariant((short)0));
}
else
{tempwrong=-(tempwrong);
sel.MoveRight(COleVariant((short)1),COleVariant((short)(tempwrong)),COleVariant((short)1));
sel.MoveRight(COleVariant((short)1),COleVariant((short)1),COleVariant((short)0));
sel.MoveRight(COleVariant((short)1),COleVariant((short)1),COleVariant((short)1));
fontwrong.AttachDispatch(sel.GetFont());
fontwrong.SetStrikeThrough(1);
fontwrong.SetColor(255);
sel.MoveLeft(COleVariant((short)1),COleVariant((short)(tempwrong)),COleVariant((short)1));
sel.MoveLeft(COleVariant((short)1),COleVariant((short)1),COleVariant((short)0));
}
if (tempwrong==0)
{fontwrong.AttachDispatch(sel.GetFont());
fontwrong.SetStrikeThrough(1);
fontwrong.SetColor(255);
}
fontwrong.ReleaseDispatch();
wrongflag=0;
}
font.AttachDispatch (sel.GetFont());
sel.MoveLeft(COleVariant((short)1),COleVariant((short)1),COleVariant((short)0));
}
sel.MoveRight(COleVariant((short)1),COleVariant((short)m),COleVariant((short)1));
sel.MoveRight(COleVariant((short)1),COleVariant((short)1),COleVariant((short)0));
tempp=m;
m=tempp+p;
p=tempp;
if (m>n) {m=3;p=1;}
}
if (1!=wrongflag)
{sel.MoveRight(COleVariant((short)1),COleVariant((short)m),COleVariant((short)1));
tempsum=int(fmod(double(tempsum),double(10)));
switch (tempsum)
{ case 0: wf[0].line=55;break;
case 1: wf[0].line=1;break;
case 2: wf[0].line=3;break;
case 3: wf[0].line=4;break;
case 4: wf[0].line=6;break;
case 5: wf[0].line=7;break;
case 6: wf[0].line=9;break;
case 7: wf[0].line=10;break;
case 8: wf[0].line=11;break;
case 9: wf[0].line=20;break;
}
font.AttachDispatch (sel.GetFont());
font.GetUnderlineColor();
font.GetUnderline();
if ((font.GetUnderline()!=wf[0].line))
{
sel.WholeStory();
fontwrong.AttachDispatch(sel.GetFont());
fontwrong.SetStrikeThrough(1);
fontwrong.SetColor(255);
fontwrong.ReleaseDispatch();
wrongflag=0;
}
}
(4)如果检测到文档被篡改，软件会对文章内容画红线并且弹出提示框提示用户，如图3.5所示。
if (1!=wrongflag) {MessageBox("水印错误，文档已被篡改");}
fontwrong.ReleaseDispatch();
font.ReleaseDispatch();
sel.ReleaseDispatch();
图3.5 文档错误提示
4 系统性能测试
4.1 水印嵌入测试
用户打开要嵌入的WORD文档后可以输入任意1-99范围内的密钥，然后生成对应水印如图4.1所示。