Planet PDF Forum Archive

Planet PDF ForumWowsers! This is page is old, head to the LIVE Planet PDF Forum. It features more than 10 conferences, covering everything from beginner to in-depth developer and pre-press discussions. If you wish to continue... one & two archive covers 1999-2011 (160,000 pages).

New Forum | Previous | Next | (P-PDF) Developers

Topic: Detecting when contents of form field has changed
Conf: (P-PDF) Developers, Msg: 52777
From: htang
Date: 5/29/2002 04:54 PM

I wish to register my own callback for when a user has changed the contents of a field on a PDF form (e.g. by typing in it).

I have tried trapping the KeyDown event with the following code:

static DoKeyDownProcType gKeyDownReplacement = NULL;

ACCB1 ASBool ACCB2 DoKeyDownOverride (AVTool tool, ASUns16 key, ASInt16 flags); // Prototype for my callback

AVTool tool = AVAppGetToolByName (ASAtomFromString("Hand"));
gKeyDownReplacement = ASCallbackCreateProto (DoKeyDownProcType, DoKeyDownOverride);
tool->DoKeyDown = gKeyDownReplacement;

I am finding that my registered callback routine only gets called when a user attempts to type outside of a edit field, but not whilst typing inside of an edit field. The later functionality is required.

Thanks once again in anticipation of any assistance in this matter.


PDF In-Depth Free Product Trials Ubiquitous PDF

Debenu Aerialist

The ultimate plug-in for Adobe Acrobat. Advanced splitting, merging, stamping, bookmarking, and link...

Download free demo

Debenu PDF Tools Pro

It's simple to use and will let you preview and edit PDF files, it's a Windows application that makes...

Download free demo

Five visions of a PDF Day

In the world of PDFs or as we like to say Planet (of) PDF, a year isn't a real PDF year without an intense few days of industry knowledge sharing.

May 15, 2018
Platinum Sponsor

Search Planet PDF
more searching options...
Planet PDF Newsletter
Most Popular Articles
Featured Product

Debenu PDF Aerialist

The ultimate plug-in for Adobe Acrobat. Advanced splitting, merging, stamping, bookmarking, and link control. Take Acrobat to the next level.


Adding a PDF Stamp Comment

OK, so you want to stamp your document. Maybe you need to give reviewers some advice about the document's status or sensitivity. This tip from author Ted Padova demonstrates how to add stamps with the Stamp Tool along with related comments.