DirOpen (FB; Prefix fildop)¶
FUNCTION_BLOCK DirOpen EXTENDS CBM.ETrig
This function block opens a directory. The entries (files and sub-directories) of which should be read with the help of the function block ”FILE.DirList”. The return value is a handle. There may be restrictions concerning the specification of the directory name, e.g. only capital letters allowed, for different targets. The function ”FILE.GetProperty” shows these restrictions.
- InOut:
Scope
Name
Type
Comment
Input
sDirName
CAA.FILENAME
Directory name, absolute or relative path specification
Output
eError
Local library error ID (0: no error; 5101: time out)
hDir
CAA.HANDLE
Directory handle