Region.GetRegionData Metod

public:
 System::Drawing::Drawing2D::RegionData ^ GetRegionData();

public System.Drawing.Drawing2D.RegionData? GetRegionData();

public System.Drawing.Drawing2D.RegionData GetRegionData();

member this.GetRegionData : unit -> System.Drawing.Drawing2D.RegionData

Public Function GetRegionData () As RegionData

Returer

En RegionData som representerar den information som beskriver detta Region.

Exempel

Följande kodexempel är utformat för användning med Windows Forms och kräver PaintEventArgse, vilket är en parameter för händelsehanteraren Paint. Kodexemplet visar hur du använder Data från ett RegionData objekt för att ange Data för ett annat RegionData.

private:
   void DemonstrateRegionData2( PaintEventArgs^ e )
   {
      //Create a simple region.
      System::Drawing::Region^ region1 = gcnew System::Drawing::Region( Rectangle(10,10,100,100) );

      // Extract the region data.
      System::Drawing::Drawing2D::RegionData^ region1Data = region1->GetRegionData();
      array<Byte>^data1;
      data1 = region1Data->Data;

      // Create a second region.
      System::Drawing::Region^ region2 = gcnew System::Drawing::Region;

      // Get the region data for the second region.
      System::Drawing::Drawing2D::RegionData^ region2Data = region2->GetRegionData();

      // Set the Data property for the second region to the Data from the first region.
      region2Data->Data = data1;

      // Construct a third region using the modified RegionData of the second region.
      System::Drawing::Region^ region3 = gcnew System::Drawing::Region( region2Data );

      // Dispose of the first and second regions.
      delete region1;
      delete region2;

      // Call ExcludeClip passing in the third region.
      e->Graphics->ExcludeClip( region3 );

      // Fill in the client rectangle.
      e->Graphics->FillRectangle( Brushes::Red, this->ClientRectangle );
      delete region3;
   }

private void DemonstrateRegionData2(PaintEventArgs e)
{

    //Create a simple region.
    Region region1 = new Region(new Rectangle(10, 10, 100, 100));

    // Extract the region data.
    System.Drawing.Drawing2D.RegionData region1Data = region1.GetRegionData();
    byte[] data1;
    data1 = region1Data.Data;

    // Create a second region.
    Region region2 = new Region();

    // Get the region data for the second region.
    System.Drawing.Drawing2D.RegionData region2Data = region2.GetRegionData();

    // Set the Data property for the second region to the Data from the first region.
    region2Data.Data = data1;

    // Construct a third region using the modified RegionData of the second region.
    Region region3 = new Region(region2Data);

    // Dispose of the first and second regions.
    region1.Dispose();
    region2.Dispose();

    // Call ExcludeClip passing in the third region.
    e.Graphics.ExcludeClip(region3);

    // Fill in the client rectangle.
    e.Graphics.FillRectangle(Brushes.Red, this.ClientRectangle);

    region3.Dispose();
}

Private Sub DemonstrateRegionData2(ByVal e As PaintEventArgs)

    'Create a simple region.
    Dim region1 As New Region(New Rectangle(10, 10, 100, 100))

    ' Extract the region data.
    Dim region1Data As System.Drawing.Drawing2D.RegionData = region1.GetRegionData
    Dim data1() As Byte
    data1 = region1Data.Data

    ' Create a second region.
    Dim region2 As New Region

    ' Get the region data for the second region.
    Dim region2Data As System.Drawing.Drawing2D.RegionData = region2.GetRegionData()

    ' Set the Data property for the second region to the Data from the first region.
    region2Data.Data = data1

    ' Construct a third region using the modified RegionData of the second region.
    Dim region3 As New Region(region2Data)

    ' Dispose of the first and second regions.
    region1.Dispose()
    region2.Dispose()

    ' Call ExcludeClip passing in the third region.
    e.Graphics.ExcludeClip(region3)

    ' Fill in the client rectangle.
    e.Graphics.FillRectangle(Brushes.Red, Me.ClientRectangle)

    region3.Dispose()

End Sub

Kommentarer

Med Region klassen kan du definiera en anpassad form. Formen kan bestå av linjer, polygoner och kurvor. GetRegionData beskriver formen i den här Region.