Manually trigger the "validation failed" rendering mode

Hi,
I am converting a forms application to APEX. The forms application has many before insert triggers with raise_application_error instructions. These triggers are used for validation purpose. Obviously there are modifications needed as I want to display the application error messages in the notification box instead of the APEX error page.
The most efficient way is obviously to reproduce the trigger logic in APEX validations. However I am curious to know if there would be a way to replace the raise_application_error instructions in triggers with something that could stop and rollback all the processing and then re-render the page like when a validation fails.
I played with wwv_flow variables but I didn't find anything that would trigger this. Is it possible to call the same thing that APEX uses to re-render the page with notification message when it detects that one or more validations have failed?
Thanks.

Hi ,
I am not sure if this would work, but you can give it a try. In the exception area try to display message using the
apex_application.g_print_success_message := apex_application.g_print_success_message|| 'My custom text' ;
Thanks,
Manish

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