NEHOG
17th March 2008 16:51 UTC

MUI_INSTALLOPTIONS_WRITE problems with writing to text field
I have the following code in my validate page function. I read the email address OK, but can't set it to anything when the user's entered values don't match. (Var $EmailData is the value entered in the main email text box, $R0 is the 'verify email' text box value.) I wanted to set the Field 9 text to blank, but nothing I do with MUI_INSTALLOPTIONS_WRITE affects the given controls.

 
  !insertmacro MUI_INSTALLOPTIONS_READ $R0 "..\email.ini" "Field 9" "State"
 

 MessageBox MB_ICONEXCLAMATION|MB_OK "email is $EmailData Confirm email is: $R0"

 StrCmp $EmailData $R0 Same NotSame

NotSame:

  MessageBox MB_ICONEXCLAMATION|MB_OK "Your e-mail addresses do not match. Please re-enter."

  !insertmacro MUI_INSTALLOPTIONS_WRITE "..\email.ini" "Field 1" "State" "Your name here."
  !insertmacro MUI_INSTALLOPTIONS_WRITE "..\email.ini" "Field 2" "State" "Your email here."
  !insertmacro MUI_INSTALLOPTIONS_WRITE "..\email.ini" "Field 9" "State" "Confirm email here."

I know... Doing something dumb!

(Text in the example MUI_INSTALLOPTIONS_WRITE is for example only, final version will write an empty string to the Field 2 one only)

Afrow UK
17th March 2008 20:02 UTC

You are writing to $PLUGINSDIR\..\email.ini. That the correct file?

Stu

NEHOG
17th March 2008 23:51 UTC

Originally posted by Afrow UK
You are writing to $PLUGINSDIR\..\email.ini. That the correct file?

Stu

Yes, it that is correct. And the line:

!insertmacro MUI_INSTALLOPTIONS_READ $R0 "..\email.ini" "Field 9" "State"

Works OK (it correctly fetches the value the user entered in the field), only the ..._WRITE is not working as expected.

Initially I thought maybe it wasn't updating the screen, but it seems to not to have any effect at all. (really odd!)

Red Wine
18th March 2008 00:58 UTC

When the dialog is already displayed you have to SendMessage to the field that you want to change.

NEHOG
18th March 2008 15:02 UTC

Originally posted by Red Wine
When the dialog is already displayed you have to SendMessage to the field that you want to change.

Wouldn't have any sample code, would you? :)

Afrow UK
18th March 2008 15:21 UTC

Search the forums and look at testnotify.nsi.

Stu