spoulson
14th October 2004 03:22 UTC

InstallOptions directory page w/ default value set at runtime
I've been mulling over this for a while and I can't find any details in docs or search. so...

I'm using InstallOptions to make a directory page using a DirRequest field.

In the ini file I can provide a State="D:\path" to provide a default in the field. However, I need the default value to be determined at runtime. I call a script function that returns the string I need, then I do a:

WriteINIStr "file.ini" "Field 1" "State" $0
FlushINI "file.ini"

However, the value in $0 never shows up as a default value when I test the install. Suspecting $0 is wrong, I do a MessageBox MB_OK $0, yet it shows that $0 contains the value I need.

Is this a bug? Is there something I'm doing wrong?

spoulson
14th October 2004 05:04 UTC

Please disregard. I just figured out the error.

For the archives, you cannot use WriteINIStr for InstallOptions ini files when using Modern UI. You must do the process:

!insertmacro MUI_INSTALLOPTIONS_INITDIALOG "ioFile.ini"
Pop $0 # dlg hwnd
GetDlgItem $1 $0 1200 # get handle to first first item
SendMessage $1 ${WM_SETTEXT} "" "STR:Your new text"  # you need STR:, don't remove it
!insertmacro MUI_INSTALLOPTIONS_SHOW

kichik
14th October 2004 12:58 UTC

Of course you can use WriteINIStr, you just need to know where the file is. When you extract it using the MUI macros, it's in $PLUGINSDIR. You can use the full path or the MUI macro to write into INI files that are in $PLUGINSDIR, MUI_INSTALLOPTIONS_WRITE.