DL_CANCELDRAG notification code
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 this notification code to its parent window in the form of a drag list message. For more information, see Drag List Box Messages.
DL_CANCELDRAG pDragInfo = (LPARAM)(LPDRAGLISTINFO) lParam;
A pointer to a DRAGLISTINFO structure that contains the DL_CANCELDRAG notification code, the handle to the drag list box, and the cursor position.
No return value.
By processing the DL_CANCELDRAG notification code, an application can reset its internal state to indicate that dragging is not in effect.
|Minimum supported client
||Windows Vista [desktop apps only]
|Minimum supported server
||Windows Server 2003 [desktop apps only]