DiagramBase.HitTestAdjustmentHandles Event

Raised when custom hit testing of item’s adjustment handles must be performed.

Namespace: MindFusion.Diagramming
Assembly: MindFusion.Diagramming

 Syntax

C#

public event EventHandler<HitTestEventArgs> HitTestAdjustmentHandles

Visual Basic

Public Event HitTestAdjustmentHandles As EventHandler(Of HitTestEventArgs)

 Event Data

HitTestAdjustmentHandles event handlers receive an argument of type HitTestEventArgs. The following HitTestEventArgs members provide information relevant to the event:

Member name	Description
Item	A DiagramItem whose adjustment handles should be hit tested.
MousePosition	A PointF specifying the mouse cursor position.
HitResult	Set this property to an AdjustmentHandle instance representing the handle that has been hit.

 Remarks

For links, set the result to a LinkAdjustmentHandle initialized with the index of the link's control point that has been hit. For nodes, set the result to a NodeAdjustmentHandle initialized with a NodeHandleType enumeration member.

 Example

C#

void diagram_HitTestAdjustmentHandles(object sender, HitTestEventArgs e)
{
    ShapeNode shapeNode = e.Item as ShapeNode;
    if (shapeNode != null)
    {
        if (shapeNode.Bounds.Contains(e.MousePosition))
        {
            // Always move
            e.HitResult = new NodeAdjustmentHandle(NodeHandleType.Move);
        }
    }
}

Visual Basic

Private Sub diagram_HitTestAdjustmentHandles(ByVal sender As Object, ByVal e As HitTestEventArgs) Handles diagram.HitTestAdjustmentHandles

    Dim shapeNode As ShapeNode = CType(e.Item, ShapeNode)

    If Not shapeNode Is Nothing Then

        If (shapeNode.Bounds.Contains(e.MousePosition)) Then

            ' Always move
            e.HitResult = New NodeAdjustmentHandle(NodeHandleType.Move)

        End If

    End If

End Sub