AspJpeg用户手册 第五章01

刚才我还了解到其实jpeg.Canvas.font对象还有四个属性用来调整字体:size属性(字体大小)、ShadowColor属性(阴影色)、ShadowYOffset属性(阴影Y向偏移像素)、ShadowXOffset属性(阴影X向偏移像素)

另外，BkMode属性值不设置或者设置为"transparent"表示背景透明。也可以用类如&HFFFFFF这样的值表示背景色

一个用asp做的论坛签明档图片，可以用来显示访问者的IP，地址来源，所使用的操作系统。程序采用动网论坛格式数据库,可从动网论坛的data目录找到 数据库文件为:IPaddress.MDB

'File: Ip.asp

<!--#include file="conn.asp"-->
<!--#include file="inc/config.asp"-->
<%Response.ContentType = "image/gif"
ConnDatabase
Dim tempip,myipnumeber,sql,rs1
Dim country,city
tempip=ReqIP
tempip = Split(tempip,".") 
if Ubound(tempip)=3 then
     For i=0 To Ubound(tempip) 
         tempip(i)=left(tempip(i),3)
         if isnumeric(tempip(i)) then
             tempip(i)=cint(tempip(i))
         else
             tempip(i)=0
         end if
     next
     myipnumeber=tempip(0)*256*256*256+tempip(1)*256*256+tempip(2)*256+tempip(3)
End If
sql="select country,city from DV_Address where IP1<="&myipnumeber&" and IP2>="&myipnumeber
set rs1=conn.execute(sql)
if not rs1.eof Then
     country = rs1(0)
     city = rs1(1)
Else
     country = "51Tiao.Com"
     city = ""
End If
rs1.close : Set rs1 = Nothing
CloseDatabase

Dim LocalFile,TargetFile
LocalFile = Server.MapPath("Ip.gif") 
Dim Jpeg 
Set Jpeg = Server.CreateObject("Persits.Jpeg") 
If -2147221005=Err then 
Response.write "没有这个组件，请安装!" '检查是否安装AspJpeg组件 
Response.End() 
End If 
Jpeg.Open (LocalFile) '打开图片 
If err.number then 
Response.write"打开图片失败,请检查路径！" 
Response.End() 
End if 
Dim aa 
aa=Jpeg.Binary '将原始数据赋给aa 

'=========加文字水印====http://www.devdao.com/============= 
Jpeg.Canvas.Font.Color = &H000000 '水印文字颜色 
Jpeg.Canvas.Font.Family = "宋体" '字体 
Jpeg.Canvas.Font.Bold = False '是否加粗 
Jpeg.Canvas.Font.Size = 12 '字体大小 
Jpeg.Canvas.Font.ShadowColor = &Hffffff '阴影色彩 
Jpeg.Canvas.Font.ShadowYOffset = 1 
Jpeg.Canvas.Font.ShadowXOffset = 1 
Jpeg.Canvas.Brush.Solid = False 
Jpeg.Canvas.Font.Quality = 4 ' '输出质量 
Jpeg.Canvas.PrintText 30,30,"-------------------------------------" '水印位置及文字
Jpeg.Canvas.PrintText 30,50,"   你的ＩＰ: "& ReqIP
Jpeg.Canvas.PrintText 30,70,"   你的位置: "&country&" "&city
Jpeg.Canvas.PrintText 30,90,"   操作系统: "&ClientInfo(0)
Jpeg.Canvas.PrintText 30,110,"   浏 览 器: "&RegExpFilter("Microsoft<sup>®</sup> ", ClientInfo(1), 0, "")
Jpeg.Canvas.PrintText 30,130,"-------------------------------------"
Jpeg.Canvas.PrintText 30,145,"个性签名来自风易在线 www.knowsky.com"
bb=Jpeg.Binary '将文字水印处理后的值赋给bb，这时，文字水印没有不透明度 


'============调整文字透明度================ 
Set MyJpeg = Server.CreateObject("Persits.Jpeg") 
MyJpeg.OpenBinary aa 

Set Logo = Server.CreateObject("Persits.Jpeg") 
Logo.OpenBinary bb 
MyJpeg.DrawImage 0,0, Logo, 0.9 '0.3是透明度 
cc=MyJpeg.Binary '将最终结果赋值给cc,这时也可以生成目标图片了 
Response.BinaryWrite cc '将二进输出给浏览器 
set aa=nothing 
set bb=nothing 
set cc=nothing 
Jpeg.close : Set Jpeg = Nothing
MyJpeg.Close : Set MyJpeg = Nothing
Logo.Close : Set Logo = Nothing
%>

'--------------------------------------------------
'File: conn.asp

<%dim conn,dbpath,UserIP
sub ConnDatabase
     On Error Resume next
     set conn=server.createobject("adodb.connection")
     DBPath = Server.MapPath("IP.MDB")
     conn.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & DBPath
     If Err Then
             err.Clear
             Set Conn = Nothing
             Response.Write "数据库正在更新中，请稍后再试！"
             Response.End
     End If
End Sub

Sub CloseDatabase
     Conn.close
     Set Conn = Nothing
End Sub%>

'-------------------------------------------------
'File: config.asp

<%
Dim User_Agent
User_Agent = Request.ServerVariables("HTTP_USER_AGENT")
    
' ============================================
' 获取客户端配置
' ============================================
Public Function ClientInfo(sType)
     If sType = 0 Then
         If InStr(User_Agent, "Windows 98") Then
             ClientInfo = "Windows 98"
         ElseIf InStr(User_Agent, "Win 9x 4.90") Then
             ClientInfo = "Windows ME"
         ElseIf InStr(User_Agent, "Windows NT 5.0") Then
             ClientInfo = "Windows 2000"
         ElseIf InStr(User_Agent, "Windows NT 5.1") Then
             ClientInfo = "Windows XP"
         ElseIf InStr(User_Agent, "Windows NT 5.2") Then
             ClientInfo = "Windows 2003"
         ElseIf InStr(User_Agent, "Windows NT") Then
             ClientInfo = "Windows NT"
         ElseIf InStr(User_Agent, "unix") or InStr(User_Agent, "Linux")   or InStr(User_Agent, "SunOS")   or InStr(User_Agent, "BSD") Then
             ClientInfo = "Unix & Linux"
         Else
             ClientInfo = "Other"
         End If
     ElseIf sType = 1 Then
         If InStr(User_Agent, "MSIE 7") Then
             ClientInfo = "Microsoft<sup>®</sup> Internet Explorer 7.0"
         ElseIf InStr(User_Agent, "MSIE 6") Then
             ClientInfo = "Microsoft<sup>®</sup> Internet Explorer 6.0"
         ElseIf InStr(User_Agent, "MSIE 5") Then
             ClientInfo = "Microsoft<sup>®</sup> Internet Explorer 5.0"
         ElseIf InStr(User_Agent, "MSIE 4") Then
             ClientInfo = "Microsoft<sup>®</sup> Internet Explorer 4.0"
         ElseIf InStr(User_Agent, "Netscape") Then
             ClientInfo = "Netscape<sup>®</sup>"
         ElseIf InStr(User_Agent, "Opera") Then
             ClientInfo = "Opera<sup>®</sup>"
         Else
             ClientInfo = "Other"
         End If
     End If
End Function


' ============================================
' 按照指定的正则表达式替换字符
' ============================================
Public Function RegExpFilter(Patrn, Str, sType, ReplaceWith)
     Dim RegEx
     Set RegEx = New RegExp
     If sType = 1 Then
         RegEx.Global = True
     Else
         RegEx.Global = False
     End If
     RegEx.Pattern = Patrn
     RegEx.IgnoreCase = True
     RegExpFilter = RegEx.Replace(Str, ReplaceWith)
End Function


Public Function ReqIP()
     ReqIP = Request.ServerVariables("HTTP_X_FORWARDED_FOR")
     If ReqIP = "" or IsNull(ReqIP) Then ReqIP = Request.ServerVariables("REMOTE_ADDR")
End Function
%>