
GeoBASIC Reference Manual
2.GeoBasic Constructs
TPS1100-Version 1.30
2-53
calling
Eof().
iSize
, if greater, will be reset to 255 characters
without notification to the caller.
Note
The file must have been opened successfully in access
mode "Input".
Parameters
FileId
in
Unique file-id returned by
Open.
sData
out
The read data.
iSize
inout
in:
Number of bytes to be read.
out:
Number of bytes actually read
from
file.
See Also
Open
Close
Print
Error Codes
RC_OK
data read successfully
RC_FIL_MEMORY_
FAILED
Error in internal memory allocation.
May be during open access of a non
existing directory.
device errors
RC_FIL_FAT_ERROR
fatal error in accessing the file
allocation table
RC_FIL_NO_
STORAGE_MEDIUM_
IN_DEVICE
No memory card inserted or it has
been removed and put in again.
Further file operations are not save.
file errors
BAS_FIL_ILL_OPER
Illegal file operation. Operation and
access mode do not correspond.
RC_FIL_INVALID_
FILE_DESCR
illegal file descriptor used
Example
Read a string from a file in "
Input
" access mode.
DIM
FileId
AS FileId
DIM sFileinput AS String255
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