please dont rip this site Prev Next

DefScreenSaverProc info

The DefScreenSaverProc function provides default processing for any messages that a screen saver application does not process.

LONG DefScreenSaverProc(

    HWND hWnd,

// handle to screen saver window

    UINT msg,

// message

    WPARAM wParam,

// first message parameter

    LPARAM lParam 

// second message parameter

   );

Parameters

hWnd
Identifies the screen saver window.
msg
Specifies the message to be processed. The DefScreenSaverProc function responds to messages that affect the screen saver’s operation, as detailed in the Remarks section.

If a screen saver application must perform a different action in response to any of these messages, the application’s ScreenSaverProc window procedure should process the message.

wParam
Specifies additional message-specific information.
lParam
Specifies additional message-specific information.

Return Values

The return value specifies the result of the message processing and depends on the message sent.

Remarks

A screen saver application’s ScreenSaverProc window procedure should use DefScreenSaverProc instead of the DefWindowProc function to provide default message processing. The DefScreenSaverProc function passes any messages that do not affect screen saver operation to DefWindowProc.

The following table describes how the DefScreenSaverProc processes a variety of window messages:

Message

Action

WM_ACTIVATE, WM_ACTIVATEAPP, WM_NCACTIVATE

Closes the screen saver if the wParam parameter is FALSE. A wParam value of FALSE indicates that the screen saver is losing the input focus. The screen saver is closed by sending a WM_CLOSE message.

WM_SETCURSOR

Removes the cursor from the screen by setting the cursor to NULL.

WM_LBUTTONDOWN, WM_RBUTTONDOWN, WM_MBUTTONDOWN, WM_KEYDOWN, WM_KEYUP, WM_MOUSEMOVE

Calls the PostQuitMessage function to close the screen saver.

WM_DESTROY

Posts a WM_CLOSE message to close the screen saver window.

WM_SYSCOMMAND

Returns FALSE if the wParam parameter of WM_SYSCOMMAND is either SC_CLOSE or SC_SCREENSAVE.

See Also

DefWindowProc, PostQuitMessage, ScreenSaverProc, WM_ACTIVATE, WM_ACTIVATEAPP, WM_CLOSE, WM_DESTROY, WM_KEYDOWN, WM_KEYUP, WM_LBUTTONDOWN, WM_MBUTTONDOWN, WM_MOUSEMOVE, WM_NCACTIVATE, WM_RBUTTONDOWN, WM_SETCURSOR, WM_SYSCOMMAND

file: /Techref/os/win/api/win32/func/src/f15_1.htm, 5KB, , updated: 2000/4/7 12:12, local time: 2024/4/26 21:55,
TOP NEW HELP FIND: 
13.58.82.79:LOG IN
 ©2024 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!

<A HREF="http://www.piclist.com/techref/os/win/api/win32/func/src/f15_1.htm"> DefScreenSaverProc</A>
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 2024 contributors:
o List host: MIT, Site host massmind.org, Top posters @none found
- 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 www.piclist.com!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  .