DL_CANCELDRAG
The
DL_CANCELDRAG notification message signals that the user has canceled a drag
operation by clicking the right mouse button or pressing the ESC key. A drag
list box sends DL_CANCELDRAG to its parent window in the form of a drag list
message.
DL_CANCELDRAG
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_CANCELDRAG notification code, the handle to the drag list box, and the
cursor position.
Return Values
No return
value.
Remarks
By processing
the DL_CANCELDRAG notification message, an application can reset its internal
state to indicate that dragging is not in effect.
See Also