[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] | Reference for unit 'Controls' (#lcl)

# TControl.OnQuadClick

Event handler signalled when a mouse quadruple mouse occurs in the control.

## Declaration

Source position: controls.pp line 1584

`protected property TControl.OnQuadClick : TNotifyEvent read FOnQuadClick write FOnQuadClick;`

## Description

OnQuadClick is a TNotifyEvent property with the event handler signalled when the mouse is quadruple-clicked on the control. OnQuadClick is signalled (when assigned) from the QuadClick method, and occurs when the LM_LBUTTONQUADCLK message is handled in the WMLButtonQUADCLK method.

Remark: | Click events are not generated if csClickEvents has been omitted from the ControlStyle flags for the control.

Use OnClick, OnDblClick, or OnTripleClick to perform actions needed when a single, double, or triple mouse click occurs in the control.

## See also

TControl.QuadClick |  | Signals the OnQuadClick event handler (when assigned).
TControl.WMLButtonQUADCLK |  | Message handler for left mouse button quadruple click events.
TControl.ControlStyle |  | Contains style flags which control the features or behaviors enabled for the control.
TControl.OnClick |  | Notification handler for mouse clicks.
TControl.OnDblClick |  | Event handler signalled when a mouse double click occurs in the control.
TControl.OnTripleClick |  | Event handler signalled when a mouse triple click occurs in the control.
TNotifyEvent