Exemplos de ViewPort.ScaleAt em C# (CSharp)

Exemplo n.º 1

Arquivo: Form1.cs Projeto: xingforever/The-auxiliary-teaching-of-data-structure

 private void pictureBox1_MouseWheel(object sender, MouseEventArgs e)
 {
     if (Command != null && Command.MouseWheel(e))
     {
         pictureBox1.Invalidate();
     }
     else
     {
         float s = 1.2f;
         if (e.Delta < 0)
         {
             s = 0.8f;
         }
         ViewPort.ScaleAt(e.Location.X, e.Location.Y, s);
         pictureBox1.Invalidate();
     }
 }