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標題: 用滑鼠移動一個圖片 [打印本頁]

作者: 2266 時間: 2021-1-26 15:12
標題: 用滑鼠移動一個圖片
public partial class Form1 : Form
{
      bool mouseDown = false;
      int oldX;
      int oldY;
      public Form1()
      {
         InitializeComponent();
      }

      private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
      {
         mouseDown = true;
         oldX = e.X;
         oldY = e.Y;
      }

      private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
      {
         if(mouseDown)
         {
            pictureBox1.Left += e.X - oldX;
            pictureBox1.Top += e.Y - oldY;
         }
      }

      private void pictureBox1_MouseUp(object sender, MouseEventArgs e)
      {
         mouseDown = false;
      }
}
}

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