pictureboxc#如何在picturebox上显示图片

（c#）操作picturebox

当然是通过定义边界了,Rectangle类,在mousemove事件中判断是否移到边界,下面给你一些简单的代码,具体实现还要看你自己,当然要实现扭曲旋转这种效果,要用到GDI+ using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; namespace WindowsApplication1 { public partial class Form1 : Form { Point postion = new Point(100,100); //显示图片的左上角位置 Size size = new Size(100,100); //图片显示大小 //定义四个区域 Rectangle LeftTop; //左上 Rectangle RightTop; //右上 Rectangle LeftBottom; //左下 Rectangle RightBottom; //右下 public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { LeftTop = new Rectangle(postion.X, postion.Y, 5, 5); RightTop = new Rectangle(postion.X + size.Width - 5, postion.Y, 5, 5); LeftBottom = new Rectangle(postion.X, postion.Y + size.Height - 5, 5, 5); RightBottom = new Rectangle(postion.X + size.Width - 5, postion.Y + size.Height - 5, 5, 5); } //在Paint事件中,画出图形 private void Form1_Paint(object sender, PaintEventArgs e) { Graphics g = e.Graphics; Brush brush = new SolidBrush(Color.Blue); g.FillRectangle(brush, postion.X, postion.Y, size.Width, size.Height); } private void Form1_MouseMove(object sender, MouseEventArgs e) { if (LeftTop.Contains(e.Location) || RightTop.Contains(e.Location) || LeftBottom.Contains(e.Location) || RightBottom.Contains(e.Location)) { Cursor.Current = Cursors.Hand; } } } }

picturebox 怎样显示文字

利用c#的GDI+技术，PictureBox.CreateGraphics()绘图，利用g.DrawString写文字。

利用this.Invalidate()刷新Form窗体，或者利用PictureBox.Invalidate()刷新PictureBox.。

代码如下： using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; namespace CCDTest { public partial class Form1 : Form { string filename; //Label lblResult; public Form1() { InitializeComponent(); filename = Application.StartupPath + ""; } private void Form1_Load(object sender, EventArgs e) { pbCCD.Load(filename); } private void pbCCD_MouseDown(object sender, MouseEventArgs e) { PointF pf = e.Location; using (Graphics g = pbCCD.CreateGraphics()) { Console.WriteLine("Beg MyDraw...."); Font f = new Font("Arial", 12); g.DrawString("Hello!", f, Brushes.Violet, pf); Console.WriteLine("End MyDraw....."); } } private void pbCCD_MouseUp(object sender, MouseEventArgs e) { pbCCD.Invalidate(); } } }

c#如何在picturebox上显示图片

看你在哪个窗口里执行了，要是就在当前窗口，那就把别的窗口那个picturebox的modifier属性设置成public，然后直接设置就行了，要是在别的窗口，就定义一个public的变量，保存图片的路径，到那个窗口直接用就行了