Image.RotateFlip(RotateFlipType) Metode

Definisi

Ruang nama:

System.Drawing

Rakitan:

System.Drawing.Common.dll

Paket:

System.Drawing.Common v8.0.0

Sumber:

Image.cs

Memutar, membalik, atau memutar dan membalik Image.

public:
 void RotateFlip(System::Drawing::RotateFlipType rotateFlipType);

public void RotateFlip (System.Drawing.RotateFlipType rotateFlipType);

member this.RotateFlip : System.Drawing.RotateFlipType -> unit

Public Sub RotateFlip (rotateFlipType As RotateFlipType)

Parameter

rotateFlipType

RotateFlipType

Anggota RotateFlipType yang menentukan jenis rotasi dan balik untuk diterapkan ke gambar.

Contoh

Contoh kode berikut menunjukkan cara memanggil RotateFlip metode pada Image enumerasi dan RotateFlipType .

Contoh ini dirancang untuk digunakan dengan Formulir Windows yang berisi PictureBox tombol bernama PictureBox1 dan bernama Button1. Tempelkan kode ke dalam formulir, panggil InitializeBitmap dari konstruktor formulir, dan kaitkan Button1_Click dengan peristiwa tombol Click . Pastikan jalur file ke bitmap valid pada sistem Anda.

Bitmap^ bitmap1;
void InitializeBitmap()
{
   try
   {
      bitmap1 = dynamic_cast<Bitmap^>(Bitmap::FromFile( "C:\\Documents and Settings\\"
      "All Users\\Documents\\My Music\\music.bmp" ));
      PictureBox1->SizeMode = PictureBoxSizeMode::AutoSize;
      PictureBox1->Image = bitmap1;
   }
   catch ( System::IO::FileNotFoundException^ ) 
   {
      MessageBox::Show( "There was an error."
      "Check the path to the bitmap." );
   }

}

void Button1_Click( System::Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
   if ( bitmap1 != nullptr )
   {
      bitmap1->RotateFlip( RotateFlipType::Rotate180FlipY );
      PictureBox1->Image = bitmap1;
   }
}

Bitmap bitmap1;

private void InitializeBitmap()
{
    try
    {
        bitmap1 = (Bitmap)Bitmap.FromFile(@"C:\Documents and Settings\" + 
            @"All Users\Documents\My Music\music.bmp");
        PictureBox1.SizeMode = PictureBoxSizeMode.AutoSize;
        PictureBox1.Image = bitmap1;
    }
    catch(System.IO.FileNotFoundException)
    {
        MessageBox.Show("There was an error." + 
            "Check the path to the bitmap.");
    }
}

private void Button1_Click(System.Object sender, System.EventArgs e)
{

    if (bitmap1 != null)
    {
        bitmap1.RotateFlip(RotateFlipType.Rotate180FlipY);
        PictureBox1.Image = bitmap1;
    }
}

Dim bitmap1 As Bitmap

Private Sub InitializeBitmap()
    Try
        bitmap1 = CType(Bitmap.FromFile("C:\Documents and Settings\All Users\" _
            & "Documents\My Music\music.bmp"), Bitmap)
        PictureBox1.SizeMode = PictureBoxSizeMode.AutoSize
        PictureBox1.Image = bitmap1
    Catch ex As System.IO.FileNotFoundException
        MessageBox.Show("There was an error. Check the path to the bitmap.")
    End Try


End Sub

Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click

    If bitmap1 IsNot Nothing Then
        bitmap1.RotateFlip(RotateFlipType.Rotate180FlipY)
        PictureBox1.Image = bitmap1
    End If

End Sub

Keterangan

Metode RotateFlip memutar gambar searah jajar.

Jika Anda ingin menggambar pada gambar setelah diputar, Anda harus selalu mengambil objek grafis baru dari gambar, jika tidak, pengecualian dapat terjadi.