DL_DROPPED
The
DL_DROPPED notification message signals that the user has completed a drag
operation by releasing the left mouse button. A drag list box sends DL_DROPPED
to its parent window 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_DROPPED notification code, the handle to the drag list box, and the
cursor position.
Return Values
No return
value.
Remarks
A window
procedure typically processes this notification message by inserting or copying
the dragged list item before the list item under the cursor. To retrieve the
index of the item at the cursor position, use the LBItemFromPoint
function. Note that the DL_DROPPED notification message is sent even if the
cursor is not on a list item. In that case, LBItemFromPoint returns - 1.
See Also