please dont rip this site Prev Next

PSN_KILLACTIVE Overview  Group

The PSN_KILLACTIVE notification message notifies a page that it is about to lose the activation either because another page is being activated or the user has chosen the OK button. This notification message is sent in the form of a WM_NOTIFY message.


lpnmhdr = (NMHDR FAR *) lParam; 



Pointer to an NMHDR structure. The hwndFrom member is the handle to the property sheet.

Return Values

Returns TRUE to prevent the page from losing the activation or FALSE to allow it.


An application should validate the information that the user has typed.

To set the return value, the dialog box procedure for the page must use the SetWindowLong function with the DWL_MSGRESULT value, and the dialog box procedure must return TRUE.

If the dialog box procedure sets DWL_MSGRESULT to TRUE, it should display a message box to explain the problem to the user.

See Also

SetWindowLong, NMHDR, WM_NOTIFY 

See also:

file: /Techref/os/win/api/win32/mess/src/msg15_6.htm, 1KB, , updated: 2000/4/7 12:20, local time: 2022/5/23 01:54,

 ©2022 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?
Please DO link to this page! Digg it! / MAKE!


After you find an appropriate page, you are invited to your to this massmind site! (posts will be visible only to you before review) Just type a nice message (short messages are blocked as spam) in the box and press the Post button. (HTML welcomed, but not the <A tag: Instead, use the link box to link to another page. A tutorial is available Members can login to post directly, become page editors, and be credited for their posts.

Link? Put it here: 
if you want a response, please enter your email address: 
Attn spammers: All posts are reviewed before being made visible to anyone other than the poster.
Did you find what you needed?

  PICList 2022 contributors:
o List host: MIT, Site host, Top posters @20220523
* Page Editors: James Newton, David Cary, and YOU!
* Roman Black of Black Robotics donates from sales of Linistep stepper controller kits.
* Ashley Roll of Digital Nemesis donates from sales of RCL-1 RS232 to TTL converters.
* Monthly Subscribers: Gregg Rew. on-going support is MOST appreciated!
* Contributors: Richard Seriani, Sr.

Welcome to!