На форуме OpenNetCF я нашел то, что хотел. Код изначально был на C #, но его преобразование в VB.NET не заняло много времени. Этот код был протестирован на версиях 2.0 и 2.1 платформы OpenNetCF, но он, очевидно, будет работать с версией 1.4. Colin
Public Function GetSignature(ByVal arrsig As Byte(), ByVal backcolor As System.Drawing.Color)
Dim pic As System.Windows.Forms.PictureBox
Dim word As Integer
Dim lngIndex As Integer
Dim lngPointsToRead As Integer = 0
Dim lngCurrX As Integer = -1
Dim lngCurrY As Integer = -1
Dim lngPrevX As Integer = -1
Dim lngPrevY As Integer = -1
Dim lngWidth As Integer = 1
Dim lngHeight As Integer
Dim bit As New System.Drawing.Bitmap(1, 1)
Dim g As Graphics = Graphics.FromImage(bit)
pic = New picturebox()
Dim blackpen As New Pen(Color.Black)
If arrsig.Length < 3 Then
Return Nothing
End If
word = arrsig(0)
word = word + System.Convert.ToInt32(arrsig(1)) * 256
lngWidth = word
word = arrsig(2)
word = word + System.Convert.ToInt32(arrsig(3)) * 256
lngHeight = word
bit = New Bitmap(lngWidth, lngHeight)
g = Graphics.FromImage(bit)
g.Clear(backcolor)
lngIndex = 4
While (True)
If (lngIndex >= arrsig.Length) Then
Exit While
End If
If (lngPointsToRead = 0) Then
word = arrsig(lngIndex)
lngIndex = lngIndex + 1
word = word + System.Convert.ToInt32(arrsig(lngIndex)) * 256
lngPointsToRead = word
lngPrevX = -1
lngPrevY = -1
Else
If (lngCurrX = -1) Then
word = arrsig(lngIndex)
If (lngWidth > 255) Then
lngIndex = lngIndex + 1
word = word + System.Convert.ToInt32(arrsig(lngIndex)) * 256
End If
lngCurrX = word
ElseIf (lngCurrY = -1) Then
word = arrsig(lngIndex)
If (lngHeight > 255) Then
lngIndex = lngIndex + 1
word = word + System.Convert.ToInt32(arrsig(lngIndex)) * 256
End If
lngCurrY = word
lngPointsToRead = lngPointsToRead - 1
If (lngPrevX <> -1) Then
g.DrawLine(blackpen, lngPrevX, lngPrevY, lngCurrX, lngCurrY)
End If
lngPrevX = lngCurrX
lngPrevY = lngCurrY
lngCurrX = -1
lngCurrY = -1
End If
End If
lngIndex = lngIndex + 1
End While
pic.Image = bit
Return pic.Image
End Function