Region Constructors

Source:

Region.cs

Source:

Region.cs

Source:

Region.cs

public:
 Region();

public Region ();

Public Sub New ()

Remarks

This constructor initializes a new Region with an infinite interior.

Source:

Region.cs

Source:

Region.cs

Source:

Region.cs

public:
 Region(System::Drawing::Drawing2D::GraphicsPath ^ path);

public Region (System.Drawing.Drawing2D.GraphicsPath path);

new System.Drawing.Region : System.Drawing.Drawing2D.GraphicsPath -> System.Drawing.Region

Public Sub New (path As GraphicsPath)

Parameters

Exceptions

Remarks

This method creates a new Region with a GraphicsPath. The new region is defined as the interior of the GraphicsPath specified by the path parameter.

Source:

Region.cs

Source:

Region.cs

Source:

Region.cs

public:
 Region(System::Drawing::Drawing2D::RegionData ^ rgnData);

public Region (System.Drawing.Drawing2D.RegionData rgnData);

new System.Drawing.Region : System.Drawing.Drawing2D.RegionData -> System.Drawing.Region

Public Sub New (rgnData As RegionData)

Parameters

Exceptions

Remarks

This method creates a new Region with an interior defined by an existing Region. The rgnData parameter is an array that contains the definition of an existing Region.

Source:

Region.cs

Source:

Region.cs

Source:

Region.cs

public:
 Region(System::Drawing::Rectangle rect);

public Region (System.Drawing.Rectangle rect);

new System.Drawing.Region : System.Drawing.Rectangle -> System.Drawing.Region

Public Sub New (rect As Rectangle)

Parameters

Examples

The following code example demonstrates how to use the Region constructor and MakeEmpty method. This example is designed to be used with Windows Forms. Create a form and paste the following code into it. Call the FillEmptyRegion method in the form's Paint event-handling method, passing e as PaintEventArgs.

private:
   void FillEmptyRegion( PaintEventArgs^ e )
   {
      // Create a region from a rectangle.
      Rectangle originalRectangle = Rectangle(40,40,40,50);
      System::Drawing::Region^ smallRegion = gcnew System::Drawing::Region( originalRectangle );

      // Call MakeEmpty.
      smallRegion->MakeEmpty();

      // Fill the region in red and draw the original rectangle
      // in black. Note there is nothing filled in.
      e->Graphics->FillRegion( Brushes::Red, smallRegion );
      e->Graphics->DrawRectangle( Pens::Black, originalRectangle );
   }

private void FillEmptyRegion(PaintEventArgs e)
{

    // Create a region from a rectangle.
    Rectangle originalRectangle = new Rectangle(40, 40, 40, 50);
    Region smallRegion = new Region(originalRectangle);

    // Call MakeEmpty.
    smallRegion.MakeEmpty();

    // Fill the region in red and draw the original rectangle
    // in black. Note there is nothing filled in.
    e.Graphics.FillRegion(Brushes.Red, smallRegion);
    e.Graphics.DrawRectangle(Pens.Black, originalRectangle);
}

Private Sub FillEmptyRegion(ByVal e As PaintEventArgs)

    ' Create a region from a rectangle.
    Dim originalRectangle As New Rectangle(40, 40, 40, 50)
    Dim smallRegion As New Region(originalRectangle)

    ' Call MakeEmpty.
    smallRegion.MakeEmpty()

    ' Fill the region in red and draw the original rectangle
    ' in black. Note there is nothing filled in.
    e.Graphics.FillRegion(Brushes.Red, smallRegion)
    e.Graphics.DrawRectangle(Pens.Black, originalRectangle)

End Sub

Remarks

This method creates a new Region with a rectangular interior. The interior is defined by the rect parameter.

Source:

Region.cs

Source:

Region.cs

Source:

Region.cs

public:
 Region(System::Drawing::RectangleF rect);

public Region (System.Drawing.RectangleF rect);

new System.Drawing.Region : System.Drawing.RectangleF -> System.Drawing.Region

Public Sub New (rect As RectangleF)

Parameters

Remarks

This method creates a new Region with a rectangular interior. The interior is defined by the rect parameter.