Core Function FileSeek
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(Difference between revisions)
(Created page with "<pre> FileSeek( <file>, <offset>, <flag> ) </pre> === Description === Changes the current File Stream location on a previously opened text file. === Parameters === ==== file ...") |
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<syntaxhighlight lang="sputnik"> | <syntaxhighlight lang="sputnik"> | ||
| + | $File = FileOpen("MyFile.txt", "w") | ||
| + | If isObj($File, "file") Then ; You could just use isObj($File) however adding the "file" will make sure it is indeed a file | ||
| + | FileAppend( $File, "This is line 1\n" ) | ||
| + | FileAppend( $File, "This is line 2\n" ) | ||
| + | FileAppend( $File, "This is line 3\n" ) | ||
| + | FileSeek( $File, 0, "B" ) | ||
| + | FileWrite( $File, "Replace Line 1" ) | ||
| + | FileClose( $File ) | ||
| + | EndIf | ||
</syntaxhighlight> | </syntaxhighlight> | ||
[[Category:Core Function]] | [[Category:Core Function]] | ||
Revision as of 09:50, 9 November 2011
FileSeek( <file>, <offset>, <flag> )
Contents |
Description
Changes the current File Stream location on a previously opened text file.
Parameters
file
A variable containing the File handle.
offset
Any valid numeric expression above zero.
flag
The position to START from (Then you can add your offset) is set here with these flags:
- "b" = Base location is Beginning of the file
- "e" = Base location is End of the file
- "c" = Base location is the current location
Return Value
Success: Returns 1
Failure: Returns 0 if error occurs.
Remarks
N/A
Example
$File = FileOpen("MyFile.txt", "w") If isObj($File, "file") Then ; You could just use isObj($File) however adding the "file" will make sure it is indeed a file FileAppend( $File, "This is line 1\n" ) FileAppend( $File, "This is line 2\n" ) FileAppend( $File, "This is line 3\n" ) FileSeek( $File, 0, "B" ) FileWrite( $File, "Replace Line 1" ) FileClose( $File ) EndIf
