ParentControlDesigner.OnMouseDragBegin Method (System.Windows.Forms.Design)

OnMouseDragBegin Method

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This page is specific to

Microsoft Visual Studio 2010/.NET Framework 4

Other versions are also available for the following:

.NET Framework Class Library

ParentControlDesigner..::.OnMouseDragBegin Method

Called in response to the left mouse button being pressed and held while over the component.

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

Syntax

Visual Basic

Protected Overrides Sub OnMouseDragBegin ( _
    x As Integer, _
    y As Integer _
)

protected override void OnMouseDragBegin(
    int x,
    int y
)

Visual C++

protected:
virtual void OnMouseDragBegin(
    int x, 
    int y
) override

abstract OnMouseDragBegin : 
        x:int * 
        y:int -> unit 
override OnMouseDragBegin : 
        x:int * 
        y:int -> unit

Parameters

x: Type: System..::.Int32
The x-coordinate of the mouse in screen coordinates.

y: Type: System..::.Int32
The y-coordinate of the mouse in screen coordinates.

Remarks

This method is called in response to the left mouse button being pressed on a component. The designer overrides the base form of this method to provide a "lasso" selection mechanism for components within the control.

Note
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.

Version Information

.NET Framework

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

.NET Framework Security

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Reference

ParentControlDesigner Class

System.Windows.Forms.Design Namespace

Other Resources

Extending Design-Time Support