Admin at 20:08, 11 February 2013

2013-02-11T20:08:36Z

Admin: Created page with "= Action = Returns the length of the File in Bytes
2013-02-11T20:07:49Z

Created page with "= Action = Returns the length of the File in Bytes </s..."

New page
= Action =

Returns the length of the File in Bytes

 

 

= Syntax =

lFileLength = LOF (#bFileNumber)

 

 

= Remarks =
<div style="padding: 0px; margin: 0px 0px 0px 4px;">
{| width="609" cellspacing="0" cellpadding="1" border="1" style="border: 2px solid rgb(0, 0, 0); border-spacing: 0px; border-collapse: collapse;"
|- style="vertical-align: top;"
| valign="top" width="28%" style="width: 166px; border: 1px solid rgb(0, 0, 0);" |
bFileNumber

| valign="top" width="100%" style="width: 434px; border: 1px solid rgb(0, 0, 0);" |
(Byte) Filenumber, which identifies an opened file

|- style="vertical-align: top;"
| valign="top" width="28%" style="width: 166px; border: 1px solid rgb(0, 0, 0);" |
LFileLength

| valign="top" width="100%" style="width: 434px; border: 1px solid rgb(0, 0, 0);" |
(Long) Variable, which assigned with the Length of the file (1-based)

|}
</div>
 

This function returns the length of an opened file. If an error occurs, 0 is returned. Check DOS-Error in variable gbDOSError.

 

 

= See also =

[http://avrhelp.mcselec.com/initfilesystem.htm INITFILESYSTEM] , [http://avrhelp.mcselec.com/open.htm OPEN] , [http://avrhelp.mcselec.com/close.htm CLOSE], [http://avrhelp.mcselec.com/flush.htm FLUSH] , [http://avrhelp.mcselec.com/print.htm PRINT], [http://avrhelp.mcselec.com/line_input.htm LINE INPUT], [http://avrhelp.mcselec.com/loc.htm LOC], [http://avrhelp.mcselec.com/eof.htm EOF] , [http://avrhelp.mcselec.com/freefile.htm FREEFILE] , [http://avrhelp.mcselec.com/fileattr.htm FILEATTR] , [http://avrhelp.mcselec.com/seek.htm SEEK] , [http://avrhelp.mcselec.com/bsave.htm BSAVE] , [http://avrhelp.mcselec.com/bload.htm BLOAD] ,[http://avrhelp.mcselec.com/kill.htm KILL] , [http://avrhelp.mcselec.com/diskfree.htm DISKFREE] , [http://avrhelp.mcselec.com/disksize.htm DISKSIZE] , [http://avrhelp.mcselec.com/get.htm GET] , [http://avrhelp.mcselec.com/put.htm PUT] , [http://avrhelp.mcselec.com/filedate.htm FILEDATE] , [http://avrhelp.mcselec.com/filetime.htm FILETIME] , [http://avrhelp.mcselec.com/filedatetime.htm FILEDATETIME] , [http://avrhelp.mcselec.com/dir.htm DIR] , [http://avrhelp.mcselec.com/filelen.htm FILELEN] , [http://avrhelp.mcselec.com/write.htm WRITE] , [http://avrhelp.mcselec.com/input.htm INPUT]

 

 

= ASM =
<div style="padding: 0px; margin: 0px 0px 0px 4px;">
{| width="634" cellspacing="0" cellpadding="1" border="1" style="border: 2px solid rgb(0, 0, 0); border-spacing: 0px; border-collapse: collapse;"
|- style="vertical-align: top;"
| valign="top" width="26%" style="width: 162px; border: 1px solid rgb(0, 0, 0);" |
Calls

| valign="top" width="40%" style="width: 249px; border: 1px solid rgb(0, 0, 0);" |
_FileLOF

| valign="top" width="100%" style="width: 211px; border: 1px solid rgb(0, 0, 0);" |
 

|- style="vertical-align: top;"
| valign="top" width="26%" style="width: 162px; border: 1px solid rgb(0, 0, 0);" |
Input

| valign="top" width="40%" style="width: 249px; border: 1px solid rgb(0, 0, 0);" |
r24: filenumber

| valign="top" width="100%" style="width: 211px; border: 1px solid rgb(0, 0, 0);" |
X: Pointer to Long-variable, which gets th result

|- style="vertical-align: top;"
| valign="top" width="26%" style="width: 162px; border: 1px solid rgb(0, 0, 0);" |
Output

| valign="top" width="40%" style="width: 249px; border: 1px solid rgb(0, 0, 0);" |
r25: Errorcode

| valign="top" width="100%" style="width: 211px; border: 1px solid rgb(0, 0, 0);" |
C-Flag: Set on Error

|}
</div>
 

 

= Example =

 <source lang="bascomavr">
'open the file in BINARY mode
Open "test.biN" For Binary As #2
Put #2 , B ' write a byte
Put #2 , W ' write a word
Put #2 , L ' write a long
Ltemp = Loc(#2)+ 1 ' get the position of the next byte
Print Ltemp ;" LOC"' store the location of the file pointer
Print Lof(#2);" length of file"
Print Fileattr(#2);" file mode"' should be 32 for binary
Put #2 , Sn ' write a single
Put #2 , Stxt ' write a string

Flush #2 ' flush to disk
Close #2
</source> {{Languages}}

[[Category:BASCOM Language Reference]]

@@ Line 44: / Line 44: @@
 = <span class="f_Header">See also</span> =
-[http://avrhelp.mcselec.com/initfilesystem.htm INITFILESYSTEM]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/open.htm OPEN]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/close.htm CLOSE],&nbsp;[http://avrhelp.mcselec.com/flush.htm FLUSH]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/print.htm PRINT],&nbsp;[http://avrhelp.mcselec.com/line_input.htm LINE INPUT],&nbsp;[http://avrhelp.mcselec.com/loc.htm LOC],&nbsp;[http://avrhelp.mcselec.com/eof.htm EOF]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/freefile.htm FREEFILE]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/fileattr.htm FILEATTR]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/seek.htm SEEK]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/bsave.htm BSAVE]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/bload.htm BLOAD]&nbsp;,[http://avrhelp.mcselec.com/kill.htm KILL]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/diskfree.htm DISKFREE]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/disksize.htm DISKSIZE]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/get.htm GET]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/put.htm PUT]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/filedate.htm FILEDATE]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/filetime.htm FILETIME]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/filedatetime.htm FILEDATETIME]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/dir.htm DIR]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/filelen.htm FILELEN]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/write.htm WRITE]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/input.htm INPUT]
+[[INITFILESYSTEM]] , [[OPEN]] , [[CLOSE]], [[FLUSH]] , [[PRINT]], [[LINE INPUT]], [[LOC]], [[EOF]] , [[FREEFILE]] , [[FILEATTR]] , [[SEEK]] , [[BSAVE]] , [[BLOAD]] ,[[KILL]] , [[DISKFREE]] , [[DISKSIZE]] , [[GET]] , [[PUT]] , [[FILEDATE]] , [[FILETIME]] , [[FILEDATETIME]] , [[DIR]] , [[FILELEN]] , [[WRITE]] , [[INPUT]]
 <span style="font-family: Arial;">&nbsp;</span>

LOF - Revision history

Admin at 20:08, 11 February 2013