[Quote=引用 2 楼 qq181818228 的回复:]
从地址加载验证码图片
Dim Rqq As HttpWebRequest
Dim RPP As HttpWebResponse
Rqq = HttpWebRequest.Create("验证码地址")
Rqq.CookieContainer = New CookieContainer
RPP = Rqq.GetResponse
Dim Img As New ……
[/Quote]
发你消息了,加下我
从地址加载验证码图片
Dim Rqq As HttpWebRequest
Dim RPP As HttpWebResponse
Rqq = HttpWebRequest.Create("验证码地址")
Rqq.CookieContainer = New CookieContainer
RPP = Rqq.GetResponse
Dim Img As New System.Drawing.Bitmap(RPP.GetResponseStream)
确定一个矩形范围: Dim 范围 As New Rectangle(3, 4, 8, 12)
复制某个范围的图片: 这个范围的图片 = 大图片.Clone(大图片的矩形范围, 大图片PixelFormat)
得到某个点的颜色 :Img.GetPixel(坐标.X, 坐标.Y)