convert byte array to bitmap

[jayy66]

Well, i figured out how to convert a bitmap into a byte array. I use this to save signatures from a pocket pc emulator. How would i convert the byte array back to a bitmap??

I tried using the code below:

Dim BackGroundImage As Bitmap
Dim ImageFileName As String = "path"

BackGroundImage = New Bitmap(ImageFileName)
GraphicsHandle = Graphics.FromImage(BackGroundImage)

but that doesn't seem to be working. i get an "Exception"
error on BackGroundImage = New bitmap(imagefilename)

Any thoughts??

 

[Borvik]

Here's what I use to transmit it through a socket:

Public Function Bmp2Byte(ByVal Data As System.Drawing.Bitmap) As Byte()
        Dim str As New System.IO.MemoryStream
        Data.Save(str, System.Drawing.Imaging.ImageFormat.Bmp)
        Dim sendBytes(str.Length - 1) As Byte
        str.Position = 0
        str.Read(sendBytes, 0, str.Length)
        str.Close()
        Return sendBytes
End Function

 

[Borvik]

Oh and about the actuall exception you're getting try this instead of you assignment:

BackGroundImage = Bitmap.FromFile(ImageFileName)

Hope those help you out.

 

[jayy66]

Thanks.

This line

BackGroundImage = Bitmap.FromFile(ImageFileName)

worked liked a charm.