torpark
25th October 2007 16:51 UTC

Write Access in $INSTDIR ?
How do I run a function to check if the user has write access to $INSTDIR, on leaving MUI_PAGE_DIRECTORY ?

I have the function, I'm just not sure how to call it and don't want to create a custom page.

Afrow UK
25th October 2007 17:45 UTC

!include LogicLib.nsh

!define MUI_PAGE_CUSTOMFUNCTION_LEAVE DirectoryPageLeave
!insertmacro MUI_PAGE_DIRECTORY

Function DirectoryPageLeave
  ClearErrors
  FileOpen $R0 $INSTDIR\temp.tmp w
  FileClose $R0
  ${If} ${Errors}
    MessageBox MB_OK|MB_ICONSTOP "Path $INSTDIR is write protected!"
    Abort
  ${EndIf}
FunctionEnd

torpark
25th October 2007 17:58 UTC

<3, works great.

kichik
25th October 2007 19:38 UTC

Better use "a" instead of "w" in case the file already exists. A temporary filename with GetTempFileName might be even better.