B4R Question How to convert 4 bytes into an integer?

Cableguy · Nov 16, 2016

Hi Guys

I am trying to get a byte converted into an integer...

My byte array is formated as follows:

0X71+4 byte binary data+0xff 0xff 0xff

So I need to convert those 4Bytes into an Integer, But HOW?????

(The bytes are in litle endian order)

Please help

[EDIT]

since I cannot delete the post, I leave my working solution here:

Bit.ParseInt(bytec.HexFromBytes(bytec.SubString2(Buffer,9,13)),16)

bytec is a byteconverter object

Erel · Nov 17, 2016

Integers in B4R are two bytes.

Your solution wastes a lot of memory.
You can use RandomAccessFile to read integers or longs from the array.

If you can, use B4RSerializator to send the data. It will be simpler and more efficient.

Cableguy · Nov 17, 2016

In this case I am receiving this data...
How can I then convert it without wasting memory?
(In this particular case I only need to convert the first byte as my value as a max of int=100)

Erel · Nov 17, 2016

B4X:

Dim raf As RandomAccessFile
raf.Initialize(Buffer, True)
Dim i As Int = raf.ReadLong32 (9)

Cableguy · Nov 17, 2016

Many thanks, will try later
This is for my GUI using a Nextion, what a great display!

B4R Question How to convert 4 bytes into an integer?

Cableguy

Expert

Erel

B4X founder

Cableguy

Expert

Erel

B4X founder

Cableguy

Expert

Similar Threads

B4R Question How to convert 4 bytes into an integer?

Cableguy

Expert

Erel

B4X founder

Cableguy

Expert

Erel

B4X founder

Cableguy

Expert

Similar Threads

Privacy & Transparency

Privacy & Transparency