Reference/FileReadByte: Difference between revisions
From NSIS Wiki
Jump to navigationJump to search
(Created page with "=FileReadByte= handle user_var(output) Reads a byte from a file opened with FileOpen. The byte is stored in the output as an integer (0-255). If the end o...") |
mNo edit summary |
||
| (One intermediate revision by the same user not shown) | |||
| Line 1: | Line 1: | ||
=FileReadByte= | =FileReadByte= | ||
handle user_var(output) | handle user_var(output) | ||
Reads a byte from a file opened with [[Reference/FileOpen|FileOpen]]. The byte is stored in the output as an integer (0-255). If the end of file is read and no more data is available, the output will be empty, and the error flag will be set. | Reads a byte from a file opened with [[Reference/FileOpen|FileOpen]]. The byte is stored in the output as an integer (0-255). If the end of file is read and no more data is available, the output will be empty, and the error flag will be set. | ||
| Line 12: | Line 13: | ||
FileClose $0 | FileClose $0 | ||
done:</highlight-nsis> | done:</highlight-nsis> | ||
''Command introduced with NSIS v1.80'' | |||
Latest revision as of 20:45, 4 June 2013
FileReadByte
handle user_var(output)
Reads a byte from a file opened with FileOpen. The byte is stored in the output as an integer (0-255). If the end of file is read and no more data is available, the output will be empty, and the error flag will be set.
ClearErrors FileOpen $0 $INSTDIR\file.dat r IfErrors done FileReadByte $0 $1 FileReadByte $0 $2 DetailPrint "$1 $2" FileClose $0 done:
Command introduced with NSIS v1.80
