Re: OnApply processing in CPropertySheetImpl

Rob Marsden <rob-uNoPq/[email protected]> writes:

> It seems that only one OnApply() is being called no matter what the 
> 'dirty' state is for each page. When I click the Apply button, a 
> PSN_KILLACTIVE message is sent to the currently open page, but the 
> following PSN_APPLY goes to the lowest numbered page that has been 
> created (pages only seem to be created when first displayed). Assuming 
> the second page is displayed, the first page has never been displayed, 
> and page two is dirty, then I click Apply, then all works as expected 
> and page two OnApply is called. In exactly the same circumstances, 
> except that page one has previously been viewed, and hence created, then 
> the PSN_APPLY goes to page one, even though I was looking at a 'dirty' 
> page two.
>
> All a bit complicated to explain, but is this expected behaviour? I was 
> expecting OnApply to be called either, for all pages, or all pages that 
> had recorded themselves as 'dirty' with 'SetModified(m_bDirty)'.

PSN_APPLY is sent to each page in turn until a page returns an error
code. If a page returns "no error" then the notification is sent to the
next page until all pages have been notified. If a page returns
"invalid" then the notifications are stopped.

http://msdn.microsoft.com/en-us/library/bb774552.aspx

I've never had a problem with property sheets. Are you setting the
return code correctly? In particular, are you defining
_WTL_NEW_PAGE_NOTIFY_HANDLERS? If so, then you need to be returning
PSNRET_NOERROR from your OnApply function; if are are not defining that
macro then you need to return true from your OnApply function.

Anthony
-- 
Author of C++ Concurrency in Action     http://www.stdthread.co.uk/book/
just::thread C++0x thread library             http://www.stdthread.co.uk
Just Software Solutions Ltd       http://www.justsoftwaresolutions.co.uk
15 Carrallack Mews, St Just, Cornwall, TR19 7UL, UK. Company No. 5478976



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