我要为picturebox1创建滚动！我不明白，但是我在picturebox1中有一个放大的矩形（其中有放大的图像），我想放大整个照片，而不仅仅是这个片段。 （滚动浏览照片）。预先谢谢你））
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.IO;
using System.Windows.Forms;
namespace ZOS_LAB1_UNIVER
{
public partial class Form1 : Form
{
public double koef = 1;
public int w1, h1, w_temp, h_temp;
public Form1()
{
InitializeComponent();
}
private void pictureBox1_Paint(object sender, PaintEventArgs e)
{
Image img = new Bitmap(openFileDialog1.FileName);
int width = img.Width;
int height = img.Height;
e.Graphics.InterpolationMode = InterpolationMode.Bilinear;
e.Graphics.DrawImage(img, new Rectangle(0, 0, w1, h1), 0, 0, width, height, GraphicsUnit.Pixel);
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button2_Click(object sender, EventArgs e)
{
pictureBox2.Hide();
pictureBox1.Show();
}
private void button3_Click(object sender, EventArgs e)
{
pictureBox1.Show();
pictureBox2.Hide();
}
#region koef
private void button1_Click_1(object sender, EventArgs e)
{
openFileDialog1.Filter = "BMP Picture |*.bmp";
openFileDialog1.ShowDialog();
pictureBox1.Hide();
pictureBox2.Hide();
pictureBox1.Paint += new PaintEventHandler(this.pictureBox1_Paint);
pictureBox1.Refresh();
Image img2 = new Bitmap(openFileDialog1.FileName);
pictureBox2.Image = img2;
w_temp = img2.Width;
h_temp = img2.Height;
}
private void button3_Click_1(object sender, EventArgs e)
{
pictureBox1.Show();
pictureBox2.Hide();
}
private void pictureBox1_Click(object sender, EventArgs e)
{
/*openFileDialog1.Filter = "BMP Picture |*.bmp";
openFileDialog1.ShowDialog();
pictureBox1.Hide();
pictureBox2.Hide();
pictureBox1.Paint += new PaintEventHandler(this.pictureBox1_Paint);
pictureBox1.Refresh();
Image img2 = new Bitmap(openFileDialog1.FileName);
pictureBox2.Image = img2;
w_temp = img2.Width;
h_temp = img2.Height;*/
}
private void button2_Click_1(object sender, EventArgs e)
{
pictureBox2.Show();
pictureBox1.Hide();
}
private void pictureBox2_Click(object sender, EventArgs e)
{
}
private void button4_Click_1(object sender, EventArgs e)
{
koef = 1.2;
w1 = w_temp * Convert.ToInt16(koef);
h1 = h_temp * Convert.ToInt16(koef);
}
private void button5_Click_1(object sender, EventArgs e)
{
koef = 3;
w1 = w_temp * Convert.ToInt16(koef);
h1 = h_temp * Convert.ToInt16(koef);
}
private void button6_Click_1(object sender, EventArgs e)
{
koef = 7;
w1 = w_temp * Convert.ToInt16(koef);
h1 = h_temp * Convert.ToInt16(koef);
}
private void button7_Click_1(object sender, EventArgs e)
{
koef = 21;
w1 = w_temp * Convert.ToInt16(koef);
h1 = h_temp * Convert.ToInt16(koef);
}
private void pictureBox2_Click_1(object sender, EventArgs e)
{
}
private void button9_Click_1(object sender, EventArgs e)
{
koef = 3;
w1 = w_temp / Convert.ToInt16(koef);
h1 = h_temp / Convert.ToInt16(koef);
}
private void button8_Click_1(object sender, EventArgs e)
{
koef = 1.2;
w1 = w_temp / Convert.ToInt16(koef);
h1 = h_temp / Convert.ToInt16(koef);
}
private void button10_Click_1(object sender, EventArgs e)
{
koef = 7;
w1 = w_temp / Convert.ToInt16(koef);
h1 = h_temp / Convert.ToInt16(koef);
}
private void button11_Click_1(object sender, EventArgs e)
{
koef = 21;
w1 = w_temp / Convert.ToInt16(koef);
h1 = h_temp / Convert.ToInt16(koef);
}
#endregion
private void fontDialog1_Apply(object sender, EventArgs e)
{
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
private void rectangleShape1_Click(object sender, EventArgs e)
{
}
private void label2_Click(object sender, EventArgs e)
{
}
private void vScrollBar1_Scroll(object sender, ScrollEventArgs e)
{
}
private void pictureBox1_Click_1(object sender, EventArgs e)
{
}
private void panel1_Paint(object sender, PaintEventArgs e)
{
}
private void pictureBox1_Click_2(object sender, EventArgs e)
{
}
private void openFileDialog1_FileOk(object sender, System.ComponentModel.CancelEventArgs e)
{
}
private void flowLayoutPanel1_Paint(object sender, PaintEventArgs e)
{
}
}
}enter image description here
