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Writes a single byte value to the file.

Component Version macOS Windows Linux Server iOS SDK
BinaryFile 7.3 ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
MBS( "BinaryFile.WriteByte"; BinaryFileRef; Value )   More


Parameter Description Example
BinaryFileRef The reference number for the open file. $FH
Value The byte value to write.
Range 0 to 255.


Returns number of bytes written or error.


Writes a single byte value to the file.


Write byte:

Set Variable [ $fh ; Value: MBS( "BinaryFile.Create"; "/Users/cs/Desktop/test.txt" ) ]
Set Variable [ $r ; Value: MBS( "BinaryFile.WriteByte"; $fh; 65) // 65 is letter A for text files ]
Set Variable [ $r ; Value: MBS( "BinaryFile.Close"; $fh) ]

See also

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Created 12nd June 2017, last changed 10th May 2023

BinaryFile.Seek - BinaryFile.WriteContainer