Yathosho
29th March 2008 18:18 UTC

IfFileExists on prefetch directory
i'm checking if the prefetch directory is empty

# method 1
IfFileExists "$WINDIR\Prefetch\*.*" NotEmpty

# method 2
FindFirst $0 $1 "$WINDIR\Prefetch\*.*"

both methods don't seem to work when the directoy is empty. method #2 always returns a dot ($1=.), unregarding whether the directory is empty or not. when i use either method to find a specific file, both methods work.

i tested the same code on different directories without any problems. any ideas?

mauvecloud
29th March 2008 18:30 UTC

In Windows, an "empty" directory isn't really empty. Except for the root directory, it always has at least the two special files "." and ".." (references to the current and parent directories, respectively). I think the safest way is to use StrCmp to check for "." and "..", and use FindNext to look for a file other than those.

Afrow UK
29th March 2008 19:48 UTC

StrCpy $2 0
ClearErrors
FindFirst $0 $1 "$WINDIR\Prefetch\*.*"
${Do}
  ${If} $1 != .
  ${AndIf} $1 != ..
    StrCpy $2 1
    ${Break}
  ${EndIf}
  FindNext $0 $1
${LoopUntil} ${Errors}
FindClose $0

Stu