Thanks, help very much (i really only needed : "If it does this, it will copy over from the old chunk into the beginning of the new chunk the entire old chunk's data." because i could find the rest in the refference guide, but thanks again)
Amir "Robert McKenzie" <[EMAIL PROTECTED]> wrote in message news:84501@palm-dev-forum... > > DmResizeRecord works just like MemHandleResize (indeed, both share code > under the covers). If it can, current versions of the PalmOS will grow the > record right where it lives and the record's data will remain completely > untouched. > > However it may also create a brand new chunk to hold the data anywhere it > chooses. If it does this, it will copy over from the old chunk into the > beginning of the new chunk the entire old chunk's data. So in this sense, > you data "will not be touched and you can just keep writing to the end of > the record." > > However, the handle for the record WILL be changed, and any pointers you > have derived from the old handle will no longer be valid. This is why the > call returns a handle. > > Hence proper coding procedure is to first examine the handle returned to see > if it is NULL. If it is, the OS couldn't grow your record and you be out of > luck (almost certainly an extreme low memory condition). If the returned > handle is not NULL, then you should lock it and use the new pointer for any > subsequent access to the record. > > Hope this helps, > > -bob mckenzie, palmsource pdx > > -----Original Message----- > From: Amir Kirshenboim [mailto:[EMAIL PROTECTED]] > Sent: Saturday, April 20, 2002 3:49 AM > To: Palm Developer Forum > Subject: DmResizeRecord - can i assume the rec's data is untuched ? > > > When I call DmResizeRecord, what happans to the records data ? > Where id the "additional space" added to - the end of the record ? > > Can I assume that records data wasn't tuched and just keep writing to the > end of the record ? > > > > -- > For information on using the Palm Developer Forums, or to unsubscribe, > please see http://www.palmos.com/dev/support/forums/ > > -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
