我已經制作了一個程序,允許用戶在一個picturebox圖像上繪製線條,但現在需要保存這些行以便在以後打開。這是我畫的線電流代碼:保存用戶在c#中繪製位圖圖形
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
pictureBox1.Image = new Bitmap(pictureBox1.Width, pictureBox1.Height);
}
int Drawshape;
private Point p1, p2;
List<Point> p1List = new List<Point>();
List<Point> p2List = new List<Point>();
private void Form1_MouseDown(object sender, MouseEventArgs e)
{
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
Drawshape = 5;
}
private void button2_Click(object sender, EventArgs e)
{
Drawshape = 2;
}
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
{
if (Drawshape == 5)
{
if (p1.X == 0)
{
p1.X = e.X;
p1.Y = e.Y;
}
else
{
p2.X = e.X;
p2.Y = e.Y;
p1List.Add(p1);
p2List.Add(p2);
pictureBox1.Invalidate();
p1.X = 0;
}
}
}
private void pictureBox1_ParentChanged(object sender, EventArgs e)
{
}
private void pictureBox1_Paint(object sender, PaintEventArgs e)
{
Graphics G = Graphics.FromImage(pictureBox1.Image);
if (Drawshape == 5)
{
using (var p = new Pen(Color.Blue, 4))
{
for (int x = 0; x < p1List.Count; x++)
{
G.DrawLine(p, p1List[x], p2List[x]);
}
}
}
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
{
pictureBox1.Invalidate();
}
private void Save_Click(object sender, EventArgs e)
{
}
}
}
我不知道如何保存這些線條,並在當用戶想要稍後再次打開。我已經公開並保存了filedialogs,但不知道如何讓他們做我希望他們做的工作。請幫忙。
感謝