Core Function FileReadBinary
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(Created page with "<pre> FileReadBinary( <file>, <expression> ) </pre> === Description === Read a number of bytes from a previously opened file starting from current File Steam pointer location....")
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(Created page with "<pre> FileReadBinary( <file>, <expression> ) </pre> === Description === Read a number of bytes from a previously opened file starting from current File Steam pointer location....")
Newer edit →
Revision as of 14:05, 12 November 2011
FileReadBinary( <file>, <expression> )
Contents |
Description
Read a number of bytes from a previously opened file starting from current File Steam pointer location.
Parameters
file
A variable containing the File handle.
expression
Optional; Number of bytes to read.
If this param is not provided it will read to the end of the file.
Return Value
Success: Returns a binary variable filled with data read from file.
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" ) FileAppend( $File, $lines ) FileClose( $File ) EndIf $File = FileOpen("MyFile.txt", "r") If isObj($File, "file") Then $binary = FileReadBinary($File) $k = 0 For $i In $binary println( DecPad($k, 5) . " Byte: " . $i . " | Hex: " . Hex($i) . " | Char: " . Chr($i) ) $k++ Next println( "Info: " . $binary ) println( "Size: " . BinaryLen($binary) ) println( "TEXT BELOW\n" . Trim(Unpack("z0", $binary)) . "\nTEXT ABOVE" ) FileClose( $File ) EndIf
