please dont rip this site Prev Next

DL_BEGINDRAG Overview  Group

The DL_BEGINDRAG notification message notifies the parent window of a drag list box that the user has clicked the left mouse button on a list item. A drag list box sends DL_BEGINDRAG in the form of a drag list message.

DL_BEGINDRAG 

idCtl = (int) wParam; 

pDragInfo = (LPDRAGLISTINFO) lParam; 

 

Parameters

idCtl
Control identifier of the drag list box.
pDragInfo
Pointer to a DRAGLISTINFO structure that contains the DL_BEGINDRAG notification code, the handle to the drag list box, and the cursor position.

Return Values

The parent window should return TRUE to begin a drag operation or FALSE to prevent a drag operation.

Remarks

When processing this notification message, a window procedure typically determines the list item at the specified cursor position by using the LBItemFromPt function and then returns TRUE or FALSE, depending on whether the item should be dragged. Before returning TRUE, the window procedure should save the index of the list item, so the application knows which item to move or copy when the drag operation is completed.

See Also

DRAGLISTINFO, LBItemFromPt


file: /Techref/os/win/api/win32/mess/src/msg04.htm, 1KB, , updated: 2000/4/7 11:19, local time: 2024/11/5 08:38,
TOP NEW HELP FIND: 
18.117.233.160:LOG IN
©2024 PLEASE DON'T RIP! THIS SITE CLOSES OCT 28, 2024 SO LONG AND THANKS FOR ALL THE FISH!

 ©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://linistepper.com/techref/os/win/api/win32/mess/src/msg04.htm"> DL_BEGINDRAG</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?