[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] |
Determines whether a drop is acceptable, using the OnDragOver handler.
Source position: controls.pp line 1140
protected procedure TControl.DragOver( |
Source: TObject; |
X: Integer; |
Y: Integer; |
State: TDragState; |
var Accept: Boolean |
); virtual; |
An OnDragOver handler is required, or any drop will be rejected (Accept becomes False).
When an OnDragOver handler is installed, Accept is set to True and can be changed by the handler.
Remark: | Caution: Sender can be either a TDragObject, or the dragged control. |
|
Event handler for the case when a control is dragged over another control |
lazarus-ccr.sourceforge.net |