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BinaryFile.Seek

Moves file pointer to new position.

Component Version macOS Windows Server FileMaker Cloud FileMaker iOS SDK
BinaryFile 7.3 Yes Yes Yes Yes Yes

MBS( "BinaryFile.Seek"; BinaryFileRef; Position )

Parameters

Parameter Description Example value
BinaryFileRef The reference number for the open file. $FH
Position The new position in the file. 123

Result

Returns OK or error.

Description

Moves file pointer to new position.

Examples

Play with Seek:

Set Variable [ $fh ; Value: MBS( "BinaryFile.Open"; "/Users/cs/Desktop/test.txt" ) ]
# Query length
Set Variable [ $len ; Value: MBS( "BinaryFile.Length"; $fh) ]
# move current position
Set Variable [ $r ; Value: MBS( "BinaryFile.Seek"; $fh; 6) ]
# query current position
Set Variable [ $pos ; Value: MBS( "BinaryFile.Position"; $fh) ]
# read 5 bytes
Set Variable [ $text ; Value: MBS( "BinaryFile.ReadText"; $fh; 5; "UTF8") ]
Set Variable [ $r ; Value: MBS( "BinaryFile.Close"; $fh) ]

See also


BinaryFile.ReadText   -   BinaryFile.WriteByte

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Links
MBS FileMaker tutorial videos