在pictureBox1 上添加文字

Question

pictureBox 上面 已经有图片 了想在图片 上添加文字 ？怎么 做的 ?用DrawString么怎么使用的 ？

Answer 1

//c#加水印             system.drawing.image image = system.drawing.image.fromfile(path); 
               graphics g = graphics.fromimage(image); 
               g.drawimage(image, 0, 0, image.width, image.height); 
               font f = new font("宋体", 32); 
               brush b = new solidbrush(color.blue); 
               string addtext = addtext.value.trim(); 
               g.drawstring(addtext, f, b, 20, 10); 
               g.dispose(); 

Answer 2

那你是建的Windows窗体应用程序？若是，直接再PictureBox上放一个Lable然后给Lable添加文本就好了！

Answer 3

private void pictureBox1_Paint(object sender, PaintEventArgs e)
  {
  if (this.pictureBox1.BackgroundImage != null)
  e.Graphics.DrawString("", new Font("宋体 ", 8), new SolidBrush(Color.Black), 5, 3);
 }
http://www.codeproject.com/KB/GDI-plus/flickerFreeDrawing.aspx

Answer 4

public FRMMain()
        {
            InitializeComponent();
            // p为PictureBox的名字
            p.Paint += new PaintEventHandler(pb_Paint);  
}
private void pb_Paint(object sender, PaintEventArgs e)
        {
            if (((PictureBox)sender).BackgroundImage == null)
            {
                string str = ((PictureBox)sender).Name.ToString();
                e.Graphics.DrawString(str, new Font("宋体", 10), new SolidBrush(Color.Black), 25, 18);
                //this.Invalidate();
            }
        }

Answer 5

public FRMMain()
  {
  InitializeComponent();
  // p为PictureBox的名字
  p.Paint += new PaintEventHandler(pb_Paint);   
}
private void pb_Paint(object sender, PaintEventArgs e)
  {
  if (((PictureBox)sender).BackgroundImage == null)
  {
  string str = ((PictureBox)sender).Name.ToString();
  e.Graphics.DrawString(str, new Font("宋体", 10), new SolidBrush(Color.Black), 25, 18);
  //this.Invalidate();
  }
  }//排版

Answer 6

lz要的是在pictureBox上写文字,这个文字当然是透明的了,用Label实现:private void label1_Paint(object sender, PaintEventArgs e)
{
    label1.BackColor = Color.Transparent;
    label1.Parent = pictureBox1;
}