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Opção Explícita
Resposta.Buffer = Verdadeiro
Resposta.Expira = -1
Sessão.TimeOut=60
Chame Com_CreatValidCode("Validatecode")
Sub Com_CreatValidCode(pSN)
'Desabilitar cache
Resposta.Expira = -9999
Response.AddHeader "Pragma","sem cache"
Response.AddHeader "Cache-Control","sem cache"
Response.ContentType = "Image/BMP"
Randomize
Dim i, ii, iii
Const cOdds = 0 'A probabilidade de aparecimento de ruído
'Dados de cor (personagem, plano de fundo)
Escurecer vColorData(1)
vColorData(0) = ChrB(204) & ChrB(0) & ChrB(0) ' Azul 204, Verde 0, Vermelho 0 (azul)
vColorData(1) = ChrB(252) & ChrB(232) & ChrB(221) ' Azul 252, verde 232, vermelho 221 (azul claro)
' Gera caracteres aleatoriamente
Const cAmount = 36 'Quantidade de texto
Const cCode = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
Diminuir vCode(4), vCodes
Para i = 0 a 3
vCode(i) = Int(Rnd * cValor)
vCodes = vCodes & Mid(cCode, vCode(i) + 1, 1)
Próxima
caracteres
vCodes 'Registrar
dados na Sessão'
Escurecer vNumberData(35)
vNumberData(0) = "1110000111110111101111011110111101001011110100101111010010111101001011110111101111011110111110000111"
vNumberData(1) = "11110111111100011111111101111111101111111101111111111111111110111111110111111110111111100000111"
vNumberData(2) = "11100001111101111011101111011111111011111110111111110111111101111111011111111011110111100000011"
vNumberData(3) = "1110000111110111101111011110111111101111111001111111111111011110111101111011110111110000111"
vNumberData(4) = "11111011111111101111111001111111010111111011011111101101111110000001111111011111111101111111000011"
vNumberData(5) = "1100000011110111111111011111111101000111110011101111111110111111110111011110111101111011110000111"
vNumberData(6) = "111100011111101110111101111111110111111110100011111001110111101111011110111101111011110111110000111"
vNumberData(7) = "110000001111011101111011101111111011111111011111110111111110111111110111111111111111111011111"
vNumberData(8) = "11100001111101111011110111101111011101111100001111101101111101111011110111101111011110111110000111"
vNumberData(9) = "111000111111011101111101111011110111011110111001111100010111111111011111111101111011101111110001111"
vNumberData(10) = "1111011111111101111111010111111101011111110101111111100000111110111011111011101111000100011"
vNumberData(11) = "1000000111110111101110111101111011011111000011111011101111101111011110111101111011110111000000111"
vNumberData(12) = "1110000011110111101101111101110111111110111111111011111111011111111101111101111011101111110001111"
vNumberData(13) = "100000111111011101111101111011110111011110111101111011110111101111011101111011110111011111000001111"
vNumberData(14) = "10000001111101111011101101111110110111111000011111011011111101101111110111111111011110111000000111"
vNumberData(15) = "100000011111011110111011011111101101111110000111111011011111101101111101111111111011111111000111111"
vNumberData(16) = "11100001111101110111101111011110111111110111111111111111111011100011101111011111011101111110001111"
vNumberData(17) = "10001000111101110111110111011111011011111000001111011101111101110111110111011111011101111000100011"
vNumberData(18) = "1100000111111101111111101111111101111111101111111101111111101111111110111111111011111100000111"
vNumberData(19) = "11100000111111101111111101111111101111111101111111111101111111110111110111011111000011111"
vNumberData(20) = "100010001111011101111101101111110101111111000111111101011111110110111110110111111011101111000100011"
vNumberData(21) = "10001111111101111111101111111110111111110111111111111111111110111111111011110111000000011"
vNumberData(22) = "1000100011110010011111001001111100100111110101011111010101111101010111110101011111010101111001010011"
vNumberData(23) = "1000100011110011011111001101111101010111110101011111010101111101100111110110011111011001111000110111"
vNumberData(24) = "1110001111110111011110111110111011111011101111101110111110111011111011101111101111011101111110001111"
vNumberData(25) = "100000011111011110111011110111101110111100000111101111111101111111110111111111011111111000111111"
vNumberData(26) = "11100011111101110111101111101110111101110111110111011111011101111101101001101111011001111110001011"
vNumberData(27) = "100000111111011101111101110111110110111110000111111010111111101101111110110111111011101111000110011"
vNumberData(28) = "111000001111011110111011110111101111111110011111111111111011110111101111011110111100000111"
vNumberData(29) = "10000000111011011011111101111111101111111101111111101111111101111111110111111111011111110001111"
vNumberData(30) = "100010001111011101111101110111110110111110111011111011101111101110111110111011111011101111110001111"
vNumberData(31) = "1000100011110111011111011101111101101111110101111111110101111111010111111110111111111011111"
vNumberData(32) = "10010100111101010111110101011111010101111101010111111110101111111010111111101011111110101111"
vNumberData(33) = "1000100011110111011111101011111101011111111011111111011111110101111111010111111011101111000100011"
vNumberData(34) = "1000100011110111011111011101111110101111111010111111111101111111110111111111011111110001111"
vNumberData(35) = "11000000111101110111111110111111101111111101111111111011111111011111111101110111100000011"
' Cabeçalho do arquivo de imagem de saída
Response.BinaryWrite ChrB(66) & ChrB(77) & ChrB(230) & ChrB(4) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) &_
ChrB (0) e ChrB (0) e ChrB (54) e ChrB (0) e ChrB (0) e ChrB (0) e ChrB (40) e ChrB (0) &_
ChrB (0) e ChrB (0) e ChrB (40) e ChrB (0) e ChrB (0) e ChrB (0) e ChrB (10) e ChrB (0) &_
ChrB(0) & ChrB(0) & ChrB(1) & ChrB(0)
' Cabeçalho de informações da imagem de saída
Response.BinaryWrite ChrB(24) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(176) & ChrB(4) &_
ChrB (0) e ChrB (0) e ChrB (18) e ChrB (11) e ChrB (0) e ChrB (0) e ChrB (18) e ChrB (11) &_
ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) & ChrB(0) &_
ChrB(0) & ChrB(0)
For i = 9 To 0 Step -1 ' Percorre todas as linhas
For ii = 0 To 3 ' Analise todas as palavras
For iii = 1 a 10 'Percorre todos os pixels
' Gera dados de imagem linha por linha, palavra por palavra e pixel por pixel
If Rnd * 99 + 1 <cOdds Then ' Gera ruído aleatoriamente
Response.BinaryWrite vColorData(0)
Outro
Response.BinaryWrite vColorData(Mid(vNumberData(vCode(ii)), i * 10 + iii, 1))
Terminar se
Próximo
Próximo
Próximo
final Sub
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