Crestron simpl plus language ref 사용자 설명서

Software Crestron

SIMPL+

136

z SIMPL+

Language Reference Guide - DOC. 5797G

FileLength

Name:

FileLength

Syntax:

LONG_INTEGER FileLength (INTEGER handle)

Description:

Returns the length of a file.

Parameters:

HANDLE specifies the file handle of the previously opened file (from FileOpen).

Return Value:

Number of bytes if successful. Otherwise, file error code is returned.

Example:

(Refer to "File Functions Overview"on page

)

SIGNED_INTEGER nFileHandle;

StartFileOperations();

nFileHandle = FileOpen ( “MyFile”, _O_RDONLY );

IF (nFileHandle < 0)

{

PRINT(“Error Opening File MyFile\n”);

return;

}

IF ( nFileHandle > 0 )

PRINT ( “Length of file = %d\n”,

FileLength ( nFileHandle ) );

IF ( FileClose ( nFileHandle ) <> 0 )

PRINT ( “Error closing file\n” );

EndFileOperations();

Version:

SIMPL+ Version 3.00.02 or higher (Pro 2 only)

Control System:

2-Series Only