C# RandomColor

作者：貓貓風 ฅ●ω●ฅ│2017-07-24 21:52:17│巴幣：24│人氣：445

這支程式算是娛樂用的，不過剛好可以練習一下色碼 R G B 的組成

應用方面可以做成像封面圖一樣的電視牆，分成一格一格的

或是霓虹燈、指定某功能達成時讓畫面變色等，其實應用也蠻多，看需求使用

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading;
namespace RandomColor
{
public partial class Form1 : Form
{
private int _R, _G, _B;
private Thread _th;
private string _color_string = "";
private delegate void updateUI(string str, Control ctl);
private delegate void updateUI2(Control ctl);
//private Form1 _F = new Form1();
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
_th = new Thread(randomColor);
_th.Start();
}
private void randomColor()
{
while(true)
{
Random r = new Random(Guid.NewGuid().GetHashCode());
_R = r.Next(255);
_G = r.Next(255);
_B = r.Next(255);
_color_string = _R + ","+ _G + "," + _B;
updateForm(this);
updateTextBox(_color_string + "\n", richTextBox1);
Thread.Sleep(500);
}
}
private void updateForm(Control ctl)
{
if (ctl.InvokeRequired)
{
updateUI2 ui = new updateUI2(updateForm);
ctl.Invoke(ui, ctl);
}
else
{
ctl.BackColor = Color.FromArgb(_R, _G, _B);
}
}
private void updateTextBox(string str, Control ctl)
{
if(ctl.InvokeRequired)
{
updateUI ui = new updateUI(updateTextBox);
ctl.Invoke(ui, str, ctl);
}
else
{
ctl.Text = str;
}
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
_th.Abort();
_th.Join();
}
}
}