Меняю цвет скроллбарами картинке в пикчербокс, но никакого эффекта?
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApp1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
hScrollBar4.Value = 0;
hScrollBar1.Value = 0;
hScrollBar2.Value = 0;
hScrollBar3.Value = 0;
hScrollBar4.Maximum = 255;
hScrollBar1.Maximum = 255;
hScrollBar2.Maximum = 255;
hScrollBar3.Maximum = 255;
}
private Bitmap MyImage;
private void button1_Click(object sender, EventArgs e)
{
if (openFileDialog1.ShowDialog() == DialogResult.Cancel)
return;
// получаем выбранный файл
string filename = openFileDialog1.FileName;
pictureBox1.SizeMode = PictureBoxSizeMode.Zoom;
MyImage = new Bitmap(filename);
pictureBox1.Image = (Image)MyImage;
}
private void Change()
{
for (int i = 0; i < pictureBox1.Image.Width; i++)
for (int j = 0; j < pictureBox1.Image.Height ; j++)
((Bitmap)pictureBox1.Image).SetPixel(i, j, Color.FromArgb(hScrollBar4.Value, hScrollBar1.Value, hScrollBar2.Value, hScrollBar3.Value));
pictureBox1.Update();
}
private void label1_Click(object sender, EventArgs e)
{
//Change();
}
private void hScrollBar1_Scroll(object sender, ScrollEventArgs e)
{
Change();
}
private void hScrollBar2_Scroll(object sender, ScrollEventArgs e)
{
Change();
}
private void hScrollBar3_Scroll(object sender, ScrollEventArgs e)
{
Change();
}
private void hScrollBar4_Scroll(object sender, ScrollEventArgs e)
{
Change();
}
private void hScrollBar1_ValueChanged(object sender, EventArgs e)
{
Change();
}
private void hScrollBar2_ValueChanged(object sender, EventArgs e)
{
Change();
}
private void hScrollBar3_ValueChanged(object sender, EventArgs e)
{
Change();
}
private void hScrollBar4_ValueChanged(object sender, EventArgs e)
{
Change();
}
private void hScrollBar4_MouseCaptureChanged(object sender, EventArgs e)
{
Change();
}
}
}
