WrapMode 枚举

定义

命名空间:

System.Drawing.Drawing2D

程序集:

System.Drawing.Common.dll

包:

System.Drawing.Common v8.0.0

Source:

WrapMode.cs

指定当纹理或渐变小于所填充的区域时平铺纹理或渐变的方式。

public enum class WrapMode

public enum WrapMode

type WrapMode = 

Public Enum WrapMode

继承

Object

ValueType

Enum

WrapMode

字段

Clamp	4	纹理或渐变没有平铺。
Tile	0	平铺渐变或纹理。
TileFlipX	1	水平反转纹理或渐变，然后平铺该纹理或渐变。
TileFlipXY	3	水平和垂直反转纹理或渐变，然后平铺该纹理或渐变。
TileFlipY	2	垂直反转纹理或渐变，然后平铺该纹理或渐变。

示例

下面的代码示例演示如何使用 FromFile 方法获取新位图。 它还演示 TextureBrush 和 WrapMode 枚举。 此示例旨在与 Windows 窗体 一起使用。 创建包含名为 的按钮的 Button2窗体。 将代码粘贴到窗体中，并将 Button2_Click 方法与按钮的事件 Click 相关联。

private:
   void Button2_Click( System::Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      try
      {
         Bitmap^ image1 = dynamic_cast<Bitmap^>(Image::FromFile( "C:\\Documents and Settings\\"
         "All Users\\Documents\\My Music\\music.bmp", true ));
         TextureBrush^ texture = gcnew TextureBrush( image1 );
         texture->WrapMode = System::Drawing::Drawing2D::WrapMode::Tile;
         Graphics^ formGraphics = this->CreateGraphics();
         formGraphics->FillEllipse( texture, RectangleF(90.0F,110.0F,100,100) );
         delete formGraphics;
      }
      catch ( System::IO::FileNotFoundException^ ) 
      {
         MessageBox::Show( "There was an error opening the bitmap."
         "Please check the path." );
      }
   }

private void Button2_Click(System.Object sender, System.EventArgs e)
{
    try
    {
        Bitmap image1 = (Bitmap) Image.FromFile(@"C:\Documents and Settings\" +
            @"All Users\Documents\My Music\music.bmp", true);

        TextureBrush texture = new TextureBrush(image1);
        texture.WrapMode = System.Drawing.Drawing2D.WrapMode.Tile;
        Graphics formGraphics = this.CreateGraphics();
        formGraphics.FillEllipse(texture, 
            new RectangleF(90.0F, 110.0F, 100, 100));
        formGraphics.Dispose();
    }
    catch(System.IO.FileNotFoundException)
    {
        MessageBox.Show("There was an error opening the bitmap." +
            "Please check the path.");
    }
}

Private Sub Button2_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button2.Click
    Try
        Dim image1 As Bitmap = _
            CType(Image.FromFile("C:\Documents and Settings\" _
            & "All Users\Documents\My Music\music.bmp", True), Bitmap)

        Dim texture As New TextureBrush(image1)
        texture.WrapMode = Drawing2D.WrapMode.Tile
        Dim formGraphics As Graphics = Me.CreateGraphics()
        formGraphics.FillEllipse(texture, _
            New RectangleF(90.0F, 110.0F, 100, 100))
        formGraphics.Dispose()

    Catch ex As System.IO.FileNotFoundException
        MessageBox.Show("There was an error opening the bitmap." _
            & "Please check the path.")
    End Try

End Sub

注解

画笔使用此枚举来确定如何填充形状。 若要查看枚举值对平铺图像的影响 WrapMode 示例，请参阅 如何：使用图像平铺形状。

另请参阅

• 如何：使用图像平铺形状