B4J Question DBRequestManager.bas got a error

[dragonguy]

when i add DBRequestManager.bas to my b4j project, i got error message "Unknown type: bitmap"
"Are you missing a library reference?"

Public Sub ImageToBytes(Image As Bitmap) As Byte()
    Dim out As OutputStream
    out.InitializeToBytesArray(0)
    Image.WriteToStream(out, 100, "JPEG")
    out.Close
    Return out.ToBytesArray
End Sub
'Converts a bytes array to an image (for BLOB fields).
Public Sub BytesToImage(bytes() As Byte) As Bitmap
    Dim In As InputStream
    In.InitializeFromBytesArray(bytes, 0, bytes.Length)
    Dim bmp As Bitmap
    bmp.Initialize2(In)
    Return bmp
End Sub

my b4j version is 4.20.
please help me.

 

[Eumel]

Did you add from THIS thread

The required library

- Libraries required:
B4J: jRandomAccessFile 2.20+ and JavaObject v2.05+: https://www.b4x.com/android/forum/threads/updates-to-internal-libaries.48274/#post-389794

 

[dragonguy]

yes i update already, but still facing error message

 

[DonManfred]

Public Sub BytesToImage(bytes() As Byte) As Bitmap

You found this snippet in b4a forum, right?

Bitmap does not exist in B4J. Here you need to use Image

Something like

Public Sub BytesToImage(bytes() As Byte) As Image
    Dim In As InputStream
    In.InitializeFromBytesArray(bytes, 0, bytes.Length)
    Dim bmp As Image
    bmp.Initialize2(In)
    Return bmp
End Sub

 

[dragonguy]

i took from here https://www.b4x.com/android/forum/t...ation-of-rdc-remote-database-connector.61801/
but anywhere thanks you.

 

[DonManfred]

i took from here

I think @Erel should change the bas-file fo match B4J ;-)

I think this should be ok for the other side

'Converts an image to a bytes array (for BLOB fields).
Public Sub ImageToBytes(Img As Image) As Byte()
    Dim out As OutputStream
    out.InitializeToBytesArray(0)
    Img.WriteToStream(out, 100, "JPEG")
    out.Close
    Return out.ToBytesArray
End Sub

 

[dragonguy]

i change the code still facing same problem,
"Unknown type: Image"
"Are you missing a library reference?"

 

[Erel]

Image belongs to jFX library. If you are creating a non-ui app then delete these two subs.

 

[dragonguy]

ok thanks bro!