please dont rip this site Prev Next

WM_MDIDESTROY Overview  Group

An application sends the WM_MDIDESTROY message to a multiple document interface (MDI) client window to close an MDI child window.


wParam = (WPARAM) (HWND) hwndChild; // handle of child to close 

lParam = 0;                         // not used; must be zero 



Value of wParam. Identifies the MDI child window to be closed.

Return Values

This message always returns zero.


This message removes the title of the MDI child window from the MDI frame window and deactivates the child window. An application should use this message to close all MDI child windows.

If an MDI client window receives a message that changes the activation of its child windows and the active MDI child window is maximized, Windows restores the active child window and maximizes the newly activated child window.

See Also


file: /Techref/os/win/api/win32/mess/src/msg25_14.htm, 1KB, , updated: 2000/4/7 12:20, local time: 2022/8/8 01:05,

 ©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?


Welcome to!

Site supported by
sales, advertizing,
& kind contributors
just like you!

Please don't rip/copy
(here's why

Copies of the site on CD
are available at minimal cost.

Welcome to!