How to convert Bytes to Hex

[srija]

Hello.. Actually, am working with Serial port interfacing(MFC) in WIN32. Iam using some library which i found while browsing, actually i need to have the output data in Hex but it is in BYTES, so my problem is, how to convert the data which is in BYTES to Hex. srija

[toxcct]

by converting, you mean printing or storing ? hexadecimal is only a representation issue. bytes are stored as bits and can be see as 2 hex characters, but this doesn't affect the handling... what do you want exactly ?

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[John M Drescher]

:confused: I am a little confused on what you are trying to do. I assume the data is binary and you want to send strings of hex codes instead? Like this 0A 2F 3C 2B FC If so loop through the bytes and output them with string.Format("%02X",onebyte); John -- modified at 10:17 Monday 20th February, 2006

[srija]

Thank you for your kind reply! Actually i need to store data as 02 00 01 00 31 15 12..., but how to write the data in Bytes? Hope you got my problem.

[toxcct]

but you want this within a string ? or this is a representation of the memory ??

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[srija]

Ya, i need it in a string!!!!

[toxcct]

so the other guy already answered correctly...

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[Wim Engberts]

In C(++) use the standard formatting: char szTarget[128]; // (or any size you need) sprintf (szTarget,"%.2x %.2x %.2x.......", Byte1, Byte2, Byte3, ......); or CString strTarget; strTarget.Format ("%.2x %.2x %.2x.......", Byte1, Byte2, Byte3, ......); Success, William

[toxcct]

i'm not the one to say that... tell it to the guy who asked the question...

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