Graphics oGraphics = Graphics.FromImage(oOutputBitmap) Get Captcha in Session string sCaptchaText = () īitmap oOutputBitmap = new Bitmap(iWidth, iHeight, PixelFormat.Format24bppRgb) HatchStyle.WideDownwardDiagonal, HatchStyle.WideUpwardDiagonal, HatchStyle.ZigZag HatchStyle.Vertical, HatchStyle.Wave, HatchStyle.Weave, HatchStyle.SolidDiamond, HatchStyle.Sphere, HatchStyle.Trellis, HatchStyle.SmallConfetti, HatchStyle.SmallGrid, HatchStyle.Plaid, HatchStyle.Shingle, HatchStyle.SmallCheckerBoard, HatchStyle.NarrowVertical, HatchStyle.OutlinedDiamond, HatchStyle.Max, HatchStyle.Min, HatchStyle.NarrowHorizontal, HatchStyle.LightUpwardDiagonal, HatchStyle.LightVertical, HatchStyle.LightDownwardDiagonal, HatchStyle.LightHorizontal, HatchStyle.LargeConfetti, HatchStyle.LargeGrid, HatchStyle.HorizontalBrick, HatchStyle.LargeCheckerBoard, HatchStyle.ForwardDiagonal, HatchStyle.Horizontal, HatchStyle.Divot, HatchStyle.DottedDiamond, HatchStyle.DottedGrid, HatchStyle.DiagonalBrick, HatchStyle.DiagonalCross, HatchStyle.DashedUpwardDiagonal, HatchStyle.DashedVertical, HatchStyle.DashedDownwardDiagonal, HatchStyle.DashedHorizontal, HatchStyle.BackwardDiagonal, HatchStyle.Cross, Int aBackgroundNoiseColor = new int įontStyle aFontStyles = new FontStyle Public void ProcessRequest(HttpContext context) Public class Captcha : IHttpHandler, IReadOnlySessionState
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