WorkflowView.ViewPortRectangle Property

Definition

Namespace:

System.Workflow.ComponentModel.Design

Assembly:

System.Workflow.ComponentModel.dll

Gets the current ViewPortRectangle for the WorkflowView.

public:
 property System::Drawing::Rectangle ViewPortRectangle { System::Drawing::Rectangle get(); };

public System.Drawing.Rectangle ViewPortRectangle { get; }

member this.ViewPortRectangle : System.Drawing.Rectangle

Public ReadOnly Property ViewPortRectangle As Rectangle

Property Value

Rectangle

A Rectangle that describes the area on the screen that is visible.

Examples

The following example shows a method of handling the Paint event of the WorkflowView object to draw an image directly on the WorkflowView. The ViewPortRectangle property returns the viewable area on the design surface to correctly constrain the image being drawn.

void workflowView_Paint(object sender, PaintEventArgs e)
{
    using (Graphics g = this.workflowView.CreateGraphics())
    {
        Bitmap draftImage = Resources.draft;
        draftImage.MakeTransparent(Color.Magenta);
        g.DrawImage(draftImage, this.workflowView.ViewPortRectangle);
    }

    base.OnPaint(e);
}

Sub workflowView_Paint(ByVal sender As Object, ByVal e As PaintEventArgs)
    Using g As Graphics = Me.workflowView.CreateGraphics()
        Dim draftImage As Bitmap = Resources.draft
        draftImage.MakeTransparent(Color.Magenta)
        g.DrawImage(draftImage, Me.workflowView.ViewPortRectangle)
    End Using

    MyBase.OnPaint(e)
End Sub

Remarks

The ViewPortRectangle contains the visible area of the workflow.