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ControlDesigner.GetHitTest Method

Indicates whether a mouse click at the specified point should be handled by the control.

Namespace:  System.Windows.Forms.Design
Assembly:  System.Design (in System.Design.dll)

protected virtual bool GetHitTest(
	Point point


Type: System.Drawing.Point

A Point indicating the position at which the mouse was clicked, in screen coordinates.

Return Value

Type: System.Boolean
true if a click at the specified point is to be handled by the control; otherwise, false.

The GetHitTest method determines whether a click at the specified point should be passed to the control, while the control is in design mode. You can override and implement this method to enable your control to receive clicks in the design-time environment.


You can pass a point in screen coordinates to the PointToClient method of the Control class to obtain the coordinates of the point relative to the upper-left corner of the control.

The GetHitTest method is called in response to the WM_NCHITTEST message, so it is called on each mouse move.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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