custom page and validate the input

I am working on developing a custom page that needs to validate the input before continuing. I have read the OptionInstall2 page a number of times now and simply do not understand how to get the validation function called. Here is what I have:

Here is my init:

Function .onInit

!insertmacro MUI_INSTALLOPTIONS_EXTRACT_AS "assets\RegForm.ini" "RegForm"

FunctionEnd

This is where I am calling the page:

!insertmacro MUI_PAGE_LICENSE "..\licence\Licence.txt"



LangString REGFORM_TITLE ${LANG_ENGLISH} "Registration."

LangString REGFORM_SUBTITLE ${LANG_ENGLISH} "Enter your Unlock Key."

Page custom RegPageShow



!insertmacro MUI_PAGE_DIRECTORY

The function calls:

Function RegPageShow



   !insertmacro MUI_HEADER_TEXT "$(REGFORM_TITLE)" "$(REGFORM_SUBTITLE)"

   !insertmacro MUI_INSTALLOPTIONS_DISPLAY "RegForm"



FunctionEnd



Function RegPageValidate



  ReadINIStr $R0 "RegistrationForm" "Field 4" "State"

  StrCmp $R0 "" 0 +3

    MessageBox MB_ICONEXCLAMATION|MB_OK "Please enter your name."

    Abort



FunctionEnd

I see your function called RegPageValidate, but when is it executed?
Try move the contents of RegPageValidate into RegPageShow...

put the validation function on the custom page definition

Page custom RegPageShow RegPageValidate

Don

Originally posted by demiller9
put the validation function on the custom page definition

Thank you! I did keep digging through the documentation last night and finally found the answer, I am still a bit new to working with Open Source project's, man what a different mindset. The answer is there, you just have to dig for it at times!